Daikin ERGA04DAV3, ERGA06DAV3, ERGA08DAV3, EHVH04S23DAV, EHVH08S23DAV User reference guide

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Installer reference guide

Daikin Altherma – Low temperature split

ERGA04DAV3(A) ERGA06DAV3(A) ERGA08DAV3(A)

EHVH04S23DAV(G) EHVH08S23DAV(G)

Installer reference guide

Daikin Altherma – Low temperature split

English

Table of contents

1 General safety precautions 3

1.1 About the documentation .......................................................... 3

1.1.1 Meaning of warnings and symbols.............................. 3

1.2 For the installer.......................................................................... 4

1.2.1 General ....................................................................... 4

1.2.2 Installation site ............................................................ 4

1.2.3 Refrigerant .................................................................. 4

1.2.4 Brine............................................................................ 5

1.2.5 Water .......................................................................... 5

1.2.6 Electrical ..................................................................... 6

2 About the documentation 6

2.1 About this document.................................................................. 6

2.2 Installer reference guide at a glance ......................................... 7

3 About the box 7

3.1 Overview: About the box ........................................................... 7

3.2 Outdoor unit............................................................................... 7

3.2.1 To unpack the outdoor unit ......................................... 7

3.2.2 To handle the outdoor unit.......................................... 7

3.2.3 To remove the accessories from the outdoor unit....... 8

3.3 Indoor unit ................................................................................. 8

3.3.1 To unpack the indoor unit ........................................... 8

3.3.2 To remove the accessories from the indoor unit......... 8

3.3.3 To handle the indoor unit ............................................ 8

4 About the units and options 9

4.1 Overview: About the units and options...................................... 9

4.2 Identification .............................................................................. 9

4.2.1 Identification label: Outdoor unit ................................. 9

4.2.2 Identification label: Indoor unit .................................... 9

4.3 Combining units and options ..................................................... 9

4.3.1 Possible options for the outdoor unit........................... 9

4.3.2 Possible options for the indoor unit............................. 9

4.3.3 Possible combinations of indoor unit and outdoor

unit .............................................................................. 10

5 Application guidelines 10

5.1 Overview: Application guidelines............................................... 10

5.2 Setting up the space heating system ........................................ 11

5.2.1 Single room................................................................. 11

5.2.2 Multiple rooms – OneLWT zone ................................ 12

5.2.3 Multiple rooms – TwoLWT zones............................... 14

5.3 Setting up an auxiliary heat source for space heating............... 15

5.4 Setting up the domestic hot water tank ..................................... 16

5.4.1 System layout – Integrated DHW tank........................ 16

5.4.2 Selecting the volume and desired temperature for

the DHW tank.............................................................. 16

5.4.3 Setup and configuration – DHW tank.......................... 17

5.4.4 DHW pump for instant hot water................................. 17

5.4.5 DHW pump for disinfection ......................................... 17

5.5 Setting up the energy metering ................................................. 18

5.5.1 Produced heat............................................................. 18

5.5.2 Consumed energy....................................................... 18

5.5.3 Normal kWh rate power supply................................... 18

5.5.4 Preferential kWh rate power supply............................ 19

5.6 Setting up the power consumption control ................................ 19

5.6.1 Permanent power limitation ........................................ 19

5.6.2 Power limitation activated by digital inputs ................. 20

5.6.3 Power limitation process ............................................. 20

5.7 Setting up an external temperature sensor ............................... 21

6 Preparation 21

6.1 Overview: Preparation............................................................... 21

6.2 Preparing the installation site .................................................... 21

6.2.1 Installation site requirements of the outdoor unit ........ 21

6.2.2 Additional installation site requirements of the

outdoor unit in cold climates ........................................ 22

6.2.3 Installation site requirements of the indoor unit ........... 23

6.3 Preparing refrigerant piping........................................................ 25

6.3.1 Refrigerant piping requirements................................... 25

6.3.2 Refrigerant piping insulation ........................................ 25

6.4 Preparing water piping ............................................................... 25

6.4.1 Water circuit requirements ........................................... 25

6.4.2 Formula to calculate the expansion vessel pre-

pressure ....................................................................... 26

6.4.3 To check the water volume and flow rate .................... 26

6.4.4 Changing the pre-pressure of the expansion vessel.... 27

6.4.5 To check the water volume: Examples ........................ 28

6.5 Preparing electrical wiring .......................................................... 28

6.5.1 About preparing electrical wiring.................................. 28

6.5.2 About preferential kWh rate power supply ................... 28

6.5.3 Overview of electrical connections except external

actuators ...................................................................... 29

6.5.4 Overview of electrical connections for external and

internal actuators ......................................................... 29

7 Installation 29

7.1 Overview: Installation ................................................................. 29

7.2 Opening the units ....................................................................... 30

7.2.1 About opening the units ............................................... 30

7.2.2 To open the outdoor unit.............................................. 30

7.2.3 To open the indoor unit ................................................ 30

7.2.4 To open the switch box cover of the indoor unit .......... 30

7.2.5 To lower the switch box on the indoor unit................... 31

7.3 Mounting the outdoor unit........................................................... 31

7.3.1 About mounting the outdoor unit.................................. 31

7.3.2 Precautions when mounting the outdoor unit............... 31

7.3.3 To provide the installation structure ............................. 31

7.3.4 To install the outdoor unit............................................. 32

7.3.5 To provide drainage ..................................................... 33

7.3.6 To prevent the outdoor unit from falling over ............... 34

7.4 Mounting the indoor unit............................................................. 34

7.4.1 About mounting the indoor unit.................................... 34

7.4.2 Precautions when mounting the indoor unit................. 34

7.4.3 To install the indoor unit............................................... 34

7.4.4 To connect the drain hose to the drain ........................ 34

7.5 Connecting the refrigerant piping ............................................... 35

7.5.1 About connecting the refrigerant piping ....................... 35

7.5.2 Precautions when connecting the refrigerant piping.... 35

7.5.3 Guidelines when connecting the refrigerant piping...... 36

7.5.4 Pipe bending guidelines............................................... 36

7.5.5 To flare the pipe end .................................................... 36

7.5.6 To braze the pipe end .................................................. 36

7.5.7 Using the stop valve and service port .......................... 36

7.5.8 To connect the refrigerant piping to the outdoor unit ... 37

7.5.9 To connect the refrigerant piping to the indoor unit ..... 37

7.6 Checking the refrigerant piping .................................................. 38

7.6.1 About checking the refrigerant piping .......................... 38

7.6.2 Precautions when checking the refrigerant piping ....... 38

7.6.3 To check for leaks........................................................ 38

7.6.4 To perform vacuum drying ........................................... 38

7.7 Charging refrigerant ................................................................... 39

7.7.1 About charging refrigerant ........................................... 39

7.7.2 Precautions when charging refrigerant ........................ 39

7.7.3 To determine the additional refrigerant amount........... 39

7.7.4 To determine the complete recharge amount.............. 39

7.7.5 To charge additional refrigerant ................................... 39

7.7.6 To fix the fluorinated greenhouse gases label ............. 39

7.8 Connecting the water piping....................................................... 40

7.8.1 About connecting the water piping............................... 40

7.8.2 Precautions when connecting the water piping............ 40

7.8.3 To connect the water piping......................................... 40

7.8.4 To connect the recirculation piping .............................. 41

7.8.5 To fill the water circuit .................................................. 41

7.8.6 To fill the domestic hot water tank ............................... 41

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

1 General safety precautions

7.8.7 To insulate the water piping........................................ 41

7.9 Connecting the electrical wiring................................................. 41

7.9.1 About connecting the electrical wiring......................... 41

7.9.2 About electrical compliance ........................................ 41

7.9.3 Precautions when connecting the electrical wiring ..... 41

7.9.4 Guidelines when connecting the electrical wiring ....... 42

7.9.5 Specifications of standard wiring components............ 42

7.9.6 To connect the electrical wiring on the outdoor unit.... 42

7.9.7 To connect the electrical wiring on the indoor unit...... 43

7.9.8 To connect the main power supply ............................. 44

7.9.9 To connect the shut-off valve...................................... 44

7.9.10 To connect the electrical meters ................................. 44

7.9.11 To connect the domestic hot water pump ................... 44

7.9.12 To connect the alarm output ....................................... 44

7.9.13 To connect the space heating ON/OFF output ........... 45

7.9.14 To connect the changeover to external heat source ... 45

7.9.15 To connect the power consumption digital inputs ....... 45

7.9.16 To connect the safety thermostat (normal closed

contact) ....................................................................... 45

7.9.17 To connect the anti-legionella heater power supply.... 46

7.10 Finishing the outdoor unit installation ........................................ 46

7.10.1 To finish the outdoor unit installation .......................... 46

7.11 Finishing the indoor unit installation .......................................... 46

7.11.1 To close the indoor unit............................................... 46

8 Configuration 47

8.1 Overview: Configuration ............................................................ 47

8.1.1 To access the most used commands ......................... 47

8.2 Configuration wizard.................................................................. 48

8.3 Possible screens ....................................................................... 48

8.3.1 Possible screens: Overview........................................ 48

8.3.2 Home screen............................................................... 48

8.3.3 Main menu screen ...................................................... 49

8.3.4 Menu screen ............................................................... 49

8.3.5 Setpoint screen........................................................... 49

8.3.6 Detailed screen with values ........................................ 50

8.3.7 Detailed screen with weather-dependent curve.......... 50

8.3.8 Schedule screen: Example ......................................... 50

8.4 Settings menu ........................................................................... 52

8.4.1 Malfunction.................................................................. 52

8.4.2 Room .......................................................................... 52

8.4.3 Main zone ................................................................... 53

8.4.4 Additional zone ........................................................... 56

8.4.5 Space heating............................................................. 57

8.4.6 Tank ............................................................................ 60

8.4.7 User settings ............................................................... 63

8.4.8 Information .................................................................. 64

8.4.9 Installer settings .......................................................... 65

8.5 Menu structure: Overview user settings .................................... 73

8.6 Menu structure: Overview installer settings............................... 74

11.5.1 To remove the water filter ............................................ 80

11.5.2 To clean the water filter in case of trouble ................... 81

11.5.3 To install the water filter ............................................... 81

12 Troubleshooting 81

12.1 Overview: Troubleshooting......................................................... 81

12.2 Precautions when troubleshooting ............................................. 82

12.3 Solving problems based on symptoms....................................... 82

12.3.1 Symptom: The unit is NOT heating as expected ......... 82

12.3.2 Symptom: The compressor does NOT start (space

heating or domestic water heating).............................. 82

12.3.3 Symptom: The system is making gurgling noises

after commissioning ..................................................... 83

12.3.4 Symptom: The pump is making noise (cavitation) ....... 83

12.3.5 Symptom: The pressure relief valve opens.................. 83

12.3.6 Symptom: The water pressure relief valve leaks ......... 84

12.3.7 Symptom: The space is NOT sufficiently heated at

low outdoor temperatures ............................................ 84

12.3.8 Symptom: The pressure at the tapping point is

temporarily unusually high ........................................... 84

12.3.9 Symptom: Decoration panels are pushed away due

to a swollen tank .......................................................... 84

12.3.10 Symptom: Tank disinfection function is NOT

completed correctly (AH-error)..................................... 84

12.4 Solving problems based on error codes ..................................... 85

12.4.1 To display the help text in case of a malfunction ......... 85

12.4.2 Error codes: Overview ................................................. 85

13 Disposal 86

13.1 Overview: Disposal..................................................................... 86

13.2 To pump down............................................................................ 86

13.3 To start and stop forced cooling ................................................. 87

14 Technical data 88

14.1 Piping diagram: Outdoor unit...................................................... 88

14.2 Piping diagram: Indoor unit ........................................................ 89

14.3 Wiring diagram: Outdoor unit ..................................................... 90

14.4 Wiring diagram: Indoor unit ........................................................ 91

14.5 Table 1 – Maximum refrigerant charge allowed in a room:

indoor unit................................................................................... 94

14.6 Table 2 – Minimum floor area: indoor unit .................................. 94

14.7 Table 3 – Minimum venting opening area for natural

ventilation: indoor unit ................................................................ 94

14.8 ESP curve: Indoor unit ............................................................... 95

15 Glossary 95

16 Field settings table 96

1 General safety precautions

9 Commissioning 75

9.1 Overview: Commissioning......................................................... 75

9.2 Precautions when commissioning ............................................. 75

9.3 Checklist before commissioning................................................ 75

9.4 Checklist during commissioning ................................................ 75

9.4.1 To check the minimum flow rate ................................. 76

9.4.2 Air purge function........................................................ 76

9.4.3 To perform an operation test run ................................ 76

9.4.4 To perform an actuator test run .................................. 77

9.4.5 Underfloor heating screed dryout................................ 77

10 Hand-over to the user 78

11 Maintenance and service 78

11.1 Overview: Maintenance and service ......................................... 78

11.2 Maintenance safety precautions................................................ 78

11.3 Checklist for yearly maintenance of the outdoor unit ................ 79

11.4 Checklist for yearly maintenance of the indoor unit................... 79

11.4.1 To drain the domestic hot water tank .......................... 80

11.5 About cleaning the water filter in case of trouble....................... 80

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

1.1 About the documentation

▪ The original documentation is written in English. All other

languages are translations.

▪ The precautions described in this document cover very important

topics, follow them carefully.

▪ The installation of the system, and all activities described in the

installation manual and the installer reference guide MUST be performed by an authorised installer.

1.1.1 Meaning of warnings and symbols

DANGER

Indicates a situation that results in death or serious injury.

DANGER: RISK OF ELECTROCUTION

Indicates a situation that could result in electrocution.

Installer reference guide

1 General safety precautions

DANGER: RISK OF BURNING

Indicates a situation that could result in burning because of extreme hot or cold temperatures.

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in explosion.

WARNING

Indicates a situation that could result in death or serious injury.

WARNING: FLAMMABLE MATERIAL

CAUTION

Indicates a situation that could result in minor or moderate injury.

NOTICE

Indicates a situation that could result in equipment or property damage.

INFORMATION

Indicates useful tips or additional information.

Symbol Explanation

Before installation, read the installation and operation manual, and the wiring instruction sheet.

Before performing maintenance and service tasks, read the service manual.

For more information, see the installer and user reference guide.

1.2 For the installer

1.2.1 General

If you are NOT sure how to install or operate the unit, contact your dealer.

NOTICE

Improper installation or attachment of equipment or accessories could result in electric shock, short-circuit, leaks, fire or other damage to the equipment. Only use accessories, optional equipment and spare parts made or approved by Daikin.

WARNING

Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).

CAUTION

Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.

WARNING

Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation.

DANGER: RISK OF BURNING

▪ Do NOT touch the refrigerant piping, water piping or

internal parts during and immediately after operation. It could be too hot or too cold. Give it time to return to normal temperature. If you must touch it, wear protective gloves.

▪ Do NOT touch any accidental leaking refrigerant.

WARNING

Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire.

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

NOTICE

▪ Do NOT place any objects or equipment on top of the

unit.

▪ Do NOT sit, climb or stand on the unit.

NOTICE

Works executed on the outdoor unit are best done under dry weather conditions to avoid water ingress.

In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods,…

Also, at least, following information MUST be provided at an accessible place at the product:

▪ Instructions for shutting down the system in case of an emergency

▪ Name and address of fire department, police and hospital

▪ Name, address and day and night telephone numbers for

obtaining service

In Europe, EN378 provides the necessary guidance for this logbook.

1.2.2 Installation site

▪ Provide sufficient space around the unit for servicing and air

circulation.

▪ Make sure the installation site withstands the unit's weight and

vibration.

▪ Make sure the area is well ventilated. Do NOT block any

ventilation openings.

▪ Make sure the unit is level.

Do NOT install the unit in the following places:

▪ In potentially explosive atmospheres.

▪ In places where there is machinery that emits electromagnetic

waves. Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.

▪ In places where there is a risk of fire due to the leakage of

flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust.

▪ In places where corrosive gas (example: sulphurous acid gas) is

produced. Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.

Installer reference guide

1.2.3 Refrigerant

If applicable. See the installation manual or installer reference guide of your application for more information.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

1 General safety precautions

NOTICE

Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard.

NOTICE

Make sure the field piping and connections are NOT subjected to stress.

WARNING

During tests, NEVER pressurize the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit).

WARNING

Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks:

▪ Excessive refrigerant concentrations in a closed room

can lead to oxygen deficiency.

▪ Toxic gas may be produced if refrigerant gas comes

into contact with fire.

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump

down the system, and there is a leak in the refrigerant circuit:

▪ Do NOT use the unit's automatic pump down function,

with which you can collect all refrigerant from the system into the outdoor unit. Possible consequence: Self-combustion and explosion of the compressor because of air going into the operating compressor.

▪ Use a separate recovery system so that the unit's

compressor does NOT have to operate.

WARNING

ALWAYS recover the refrigerant. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation.

NOTICE

After all the piping has been connected, make sure there is no gas leak. Use nitrogen to perform a gas leak detection.

NOTICE

▪ To avoid compressor breakdown, do NOT charge more

than the specified amount of refrigerant.

▪ When the refrigerant system is to be opened,

refrigerant MUST be treated according to the applicable legislation.

WARNING

Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying.

▪ In case re-charge is required, refer to the nameplate of the unit. It

states the type of refrigerant and necessary amount.

▪ The unit is factory charged with refrigerant and depending on pipe

sizes and pipe lengths some systems require additional charging of refrigerant.

▪ Only use tools exclusively for the refrigerant type used in the

system, this to ensure pressure resistance and prevent foreign materials from entering into the system.

▪ Charge the liquid refrigerant as follows:

If Then

A siphon tube is present

(i.e., the cylinder is marked with "Liquid filling siphon attached")

A siphon tube is NOT present Charge with the cylinder upside

▪ Open refrigerant cylinders slowly.

▪ Charge the refrigerant in liquid form. Adding it in gas form may

prevent normal operation.

CAUTION

When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is NOT closed immediately, remaining pressure might charge additional refrigerant. Possible consequence: Incorrect refrigerant amount.

Charge with the cylinder upright.

down.

1.2.4 Brine

If applicable. See the installation manual or installer reference guide of your application for more information.

WARNING

The selection of the brine MUST be in accordance with the applicable legislation.

WARNING

Take sufficient precautions in case of brine leakage. If brine leaks, ventilate the area immediately and contact your local dealer.

WARNING

The ambient temperature inside the unit can get much higher than that of the room, e.g. 70°C. In case of a brine leak, hot parts inside the unit can create a hazardous situation.

WARNING

The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation.

1.2.5 Water

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure water quality complies with EU directive 98/83EC.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

2 About the documentation

1.2.6 Electrical

DANGER: RISK OF ELECTROCUTION

▪ Turn OFF all power supply before removing the

switch box cover, connecting electrical wiring or touching electrical parts.

▪ Disconnect the power supply for more than 1 minute,

and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50 V DC before you can touch electrical components. For the location of the terminals, see the wiring diagram.

▪ Do NOT touch electrical components with wet hands.

▪ Do NOT leave the unit unattended when the service

cover is removed.

WARNING

If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring.

WARNING

▪ ONLY use copper wires.

▪ Make sure the field wiring complies with the applicable

legislation.

▪ All field wiring MUST be performed in accordance with

the wiring diagram supplied with the product.

▪ NEVER squeeze bundled cables and make sure they

do NOT come in contact with the piping and sharp edges. Make sure no external pressure is applied to the terminal connections.

▪ Make sure to install earth wiring. Do NOT earth the unit

to a utility pipe, surge absorber, or telephone earth. Incomplete earth may cause electrical shock.

▪ Make sure to use a dedicated power circuit. NEVER

use a power supply shared by another appliance.

▪ Make sure to install the required fuses or circuit

breakers.

▪ Make sure to install an earth leakage protector. Failure

to do so may cause electric shock or fire.

▪ When installing the earth leakage protector, make sure

it is compatible with the inverter (resistant to high frequency electric noise) to avoid unnecessary opening of the earth leakage protector.

CAUTION

When connecting the power supply, the earth connection must be made before the current-carrying connections are established. When disconnecting the power supply, the current-carrying connections must be separated before the earth connection is. The length of the conductors between the power supply stress relief and the terminal block itself must be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.

NOTICE

Precautions when laying power wiring:

▪ Do NOT connect wiring of different thicknesses to the

power terminal block (slack in the power wiring may cause abnormal heat).

▪ When connecting wiring which is the same thickness,

do as shown in the figure above.

▪ For wiring, use the designated power wire and connect

firmly, then secure to prevent outside pressure being exerted on the terminal board.

▪ Use an appropriate screwdriver for tightening the

terminal screws. A screwdriver with a small head will damage the head and make proper tightening impossible.

▪ Over-tightening the terminal screws may break them.

Install power cables at least 1 metre away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1metre may not be sufficient.

WARNING

▪ After finishing the electrical work, confirm that each

electrical component and terminal inside the electrical components box is connected securely.

▪ Make sure all covers are closed before starting up the

unit.

NOTICE

Only applicable if the power supply is three‑phase, and the compressor has an ON/OFF starting method.

If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts.

2 About the documentation

2.1 About this document

Target audience

Authorised installers

Documentation set

This document is part of a documentation set. The complete set consists of:

▪ General safety precautions:

▪ Safety instructions that you must read before installing

▪ Format: Paper (in the box of the indoor unit)

▪ Indoor unit installation manual:

▪ Installation instructions

▪ Format: Paper (in the box of the indoor unit)

▪ Outdoor unit installation manual:

▪ Installation instructions

▪ Format: Paper (in the box of the outdoor unit)

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

3 About the box

1 2

▪ Installer reference guide:

▪ Preparation of the installation, good practices, reference data,…

▪ Format: Digital files on http://www.daikineurope.com/support-

and-manuals/product-information/

▪ Addendum book for optional equipment:

▪ Additional info about how to install optional equipment

▪ Format: Paper (in the box of the indoor unit) + Digital files on

http://www.daikineurope.com/support-and-manuals/productinformation/

Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer.

The original documentation is written in English. All other languages are translations.

Technical engineering data

▪ A subset of the latest technical data is available on the regional

Daikin website (publicly accessible).

▪ The full set of latest technical data is available on the Daikin

extranet (authentication required).

2.2 Installer reference guide at a glance

Chapter Description

General safety precautions

About the documentation What documentation exists for the

About the box How to unpack the units and remove

About the units and options

Application guidelines Various installation setups of the system

Preparation What to do and know before going

Installation What to do and know to install the

Configuration What to do and know to configure the

Commissioning What to do and know to commission the

Hand‑over to the user What to give and explain to the user

Maintenance and service How to maintain and service the units

Troubleshooting What to do in case of problems

Disposal How to dispose of the system

Technical data Specifications of the system

Glossary Definition of terms

Field settings table Table to be filled in by the installer, and

Safety instructions that you must read before installing

installer

their accessories

▪ How to identify the units

▪ Possible combinations of units and

options

on‑site

system

system after it is installed

system after it is configured

kept for future reference

Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user.

3 About the box

3.1 Overview: About the box

This chapter describes what you have to do after the boxes with the outdoor and indoor unit are delivered on-site.

Keep the following in mind:

▪ At delivery, the unit MUST be checked for damage. Any damage

MUST be reported immediately to the carrier's claims agent.

▪ Bring the packed unit as close as possible to its final installation

position to prevent damage during transport.

▪ Prepare the path along which you want to bring the unit inside in

advance.

3.2 Outdoor unit

3.2.1 To unpack the outdoor unit

3.2.2 To handle the outdoor unit

CAUTION

To avoid injury, do NOT touch the air inlet or aluminium fins of the unit.

1 Handle the unit using the sling to the left and the handle to the

right. Pull up both sides of the sling at the same time to prevent disconnection of the sling from the unit.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

3 About the box

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3.3 Indoor unit

3.3.1 To unpack the indoor unit

3.3.2 To remove the accessories from the indoor unit

2 While handling the unit:

▪ Keep both sides of the sling level. ▪ Keep your back straight.

3 After mounting the unit, remove the sling from the unit by pulling

1 side of the sling.

3.2.3 To remove the accessories from the outdoor unit

1 Lift the outdoor unit. See "3.2.2 To handle the outdoor unit"on

page7.

2 Remove the accessories at the bottom of the package.

a Shut-off valves for water circuit b Overpressure bypass valve c General safety precautions d Addendum book for optional equipment e Indoor unit installation manual

f Operation manual

g Sealing rings for shut-off valves (space heating water

circuit)

h Sealing rings for field-supplied shut-off valves (domestic

hot water circuit)

i Sealing tape for low voltage wiring intake

3.3.3 To handle the indoor unit

Use the handles at the back and at the bottom to carry the unit.

a Outdoor unit installation manual b Fluorinated greenhouse gases label c Multilingual fluorinated greenhouse gases label d Energy label e Unit mounting plate

f Bolts, nuts, washers, spring washers and wire clamp

Installer reference guide

a Handles at the back of the unit b Handles at the bottom of the unit. Carefully tilt the unit to

the back so that the handles become visible.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

4 About the units and options

4.1 Overview: About the units and options

This chapter contains information about:

▪ Identifying the outdoor unit

▪ Identifying the indoor unit

▪ Combining the outdoor unit with options

▪ Combining the indoor unit with options

4.2 Identification

NOTICE

When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models.

4.2.1 Identification label: Outdoor unit

Location

Model identification

Example: ERGA06DAV3 A

Code Explanation

ER European split outdoor pair heat pump

G Medium water temperature – ambient zone: −10~

−20°C

A Refrigerant R32

06 Capacity class

DA Model series

V3 Power supply

A A=Austrian model

[—]=Non-Austrian model

4.2.2 Identification label: Indoor unit

Location

Code Description

S Integrated tank material: Stainless steel

23 Integrated tank volume

DA Model series

V Model with single phase anti-legionella heater in

the domestic hot water tank. (Without backup heater in the space heating circuit.)

G G=Grey model

[—]=White model

4.3 Combining units and options

4.3.1 Possible options for the outdoor unit

Drain pan kit (EKDP008D)

The drain pan kit is required to gather the drain from the outdoor unit. The drain pan kit consists of:

▪ Drain pan

▪ Installation brackets

For installation instructions, see the installation manual of the drain pan.

Drain pan heater (EKDPH008CA)

The drain pan heater is required to avoid freezing-up of the drain pan.

It is recommended to install this option in colder regions with possible low ambient temperatures or heavy snowfall.

For installation instructions, see the installation manual of the drain pan heater.

U-beams (EKFT008D)

The U-beams are installation brackets on which the outdoor unit can be installed.

It is recommended to install this option in colder regions with possible low ambient temperatures or heavy snowfall.

For installation instructions, see the installation manual of the outdoor unit.

Low sound cover (EKLN08A1)

In sound sensitive areas (e.g. near a bedroom), you can install the low sound cover to decrease the operation noise of the outdoor unit.

You can install the low sound cover:

▪ On mounting feet to the ground. This must withstand 200kg.

▪ On brackets to the wall. This must withstand 200kg.

If you install the low sound cover, you also need to install one of the following options:

▪ Recommended: Drain pan kit (with or without drain pan heater)

▪ U-beams

For installation instructions, see the installation manual of the low sound cover.

Model identification

Example: EHVH04S23DAVG

Code Description

E European model

HV Floor-standing indoor unit with integrated tank

H H=Heating only

04 Capacity class

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

4.3.2 Possible options for the indoor unit

User interface used as room thermostat (EKRUDAS)

▪ The user interface used as room thermostat can only be used in

combination with the user interface connected to the indoor unit.

▪ The user interface used as room thermostat needs to be installed

in the room that you want to control.

For installation instructions, see the installation and operation manual of the user interface used as room thermostat.

Installer reference guide

5 Application guidelines

Room thermostat (EKRTWA, EKRTR1)

You can connect an optional room thermostat to the indoor unit. This thermostat can either be wired (EKRTWA) or wireless (EKRTR1).

For installation instructions, see the installation manual of the room thermostat and addendum book for optional equipment.

Remote sensor for wireless thermostat (EKRTETS)

You can use a wireless indoor temperature sensor (EKRTETS) only in combination with the wireless thermostat (EKRTR1).

For installation intructions, see the installation manual of the room thermostat and addendum book for optional equipment.

Digital I/O PCB (EKRP1HB)

The digital I/O PCB is required to provide following signals:

▪ Alarm output

▪ Space heating/cooling On/OFF output

▪ Changeover to external heat source

For installation instructions, see the installation manual of the digital I/O PCB and addendum book for optional equipment.

Demand PCB (EKRP1AHTA)

To enable the power saving consumption control by digital inputs you must install the demand PCB.

For installation instructions, see the installation manual of the demand PCB and addendum book for optional equipment.

Remote indoor sensor (KRCS01-1)

By default the internal user interface sensor will be used as room temperature sensor.

As an option the remote indoor sensor can be installed to measure the room temperature on another location.

For installation instructions, see the installation manual of the remote indoor sensor and addendum book for optional equipment.

INFORMATION

▪ The remote indoor sensor can only be used in case the

user interface is configured with room thermostat functionality.

▪ You can only connect either the remote indoor sensor

or the remote outdoor sensor.

Remote outdoor sensor (EKRSCA1)

By default the sensor inside the outdoor unit will be used to measure the outdoor temperature.

As an option the remote outdoor sensor can be installed to measure the outdoor temperature on another location (e.g. to avoid direct sunlight) to have an improved system behaviour.

For installation instructions, see the installation manual of the remote outdoor sensor.

INFORMATION

You can only connect either the remote indoor sensor or the remote outdoor sensor.

PC cable (EKPCCAB)

The PC cable makes a connection between the switch box of the indoor unit and a PC. It gives the possibility to update the software of the indoor unit.

For installation instructions, see the installation manual of the PC cable and "8Configuration"on page47.

Pipe bend kit (EKHVTC)

When the indoor unit is installed in a place with limited space, a pipe bend kit can be installed to facilitate the connection to the refrigerant liquid and gas connections of the indoor unit.

For installation instructions, see the instruction sheet of the pipe bend kit.

Heat pump convector (FWXV)

For installation instructions, refer to the installation manual of the heat pump convectors, and the addendum book for optional equipment.

Backup heater (EKLBUHCB6W1)

You can install an optional backup heater.

For installation instructions, see the installation manual of the backup heater and addendum book for optional equipment.

LAN adapter for smartphone control + Smart Grid applications (BRP069A61)

You can install this LAN adapter to:

▪ Control the system via a smartphone app.

▪ Use the system in various Smart Grid applications.

For installation instructions, see the installation manual of the LAN adapter.

LAN adapter for smartphone control (BRP069A62)

You can install this LAN adapter to control the system via a smartphone app.

For installation instructions, see the installation manual of the LAN adapter.

4.3.3 Possible combinations of indoor unit and outdoor unit

Indoor unit Outdoor unit

ERGA04 ERGA06 ERGA08

EHVH04 O — —

EHVH08 — O O

5 Application guidelines

5.1 Overview: Application guidelines

The purpose of the application guidelines is to give a glance of the possibilities of the Daikin heatpump system.

NOTICE

▪ The illustrations in the application guidelines are meant

for reference only, and are NOT to be used as detailed hydraulic diagrams. The detailed hydraulic dimensioning and balancing are NOT shown, and are the responsibility of the installer.

▪ For more information about the configuration settings to

optimize heatpump operation, see "8Configuration"on

page47.

This chapter contains application guidelines for:

▪ Setting up the space heating system

▪ Setting up an auxiliary heat source for space heating

▪ Setting up the domestic hot water tank

▪ Setting up the energy metering

▪ Setting up the power consumption control

▪ Setting up an external temperature sensor

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

5 Application guidelines

5.2 Setting up the space heating system

The Daikin heat pump system supplies leaving water to heat emitters in one or more rooms.

Because the system offers a wide flexibility to control the temperature in each room, you need to answer the following questions first:

▪ How many rooms are heated by the Daikin heatpump system?

▪ Which heat emitter types are used in each room and what is their

design leaving water temperature?

Once the space heating requirements are clear, Daikin recommends to follow the setup guidelines below.

NOTICE

If an external room thermostat is used, the external room thermostat will control the room frost protection. However, the room frost protection is only possible if the leaving water temperature control on the unit's user interface is turned ON.

INFORMATION

In case an external room thermostat is used and room frost protection needs to be guaranteed in all conditions, then you have to set Emergency [9.5] to Automatic.

Benefits

▪ Highest comfort and efficiency. The smart room thermostat

functionality can decrease or increase the desired leaving water temperature based on the actual room temperature (modulation). This results in:

▪ Stable room temperature matching the desired temperature

(higher comfort)

▪ Less ON/OFF cycles (more quiet, higher comfort and higher

efficiency)

▪ Lowest possible leaving water temperature (higher efficiency)

▪ Easy. You can easily set the desired room temperature via the

user interface:

▪ For your daily needs, you can use preset values and schedules.

▪ To deviate from your daily needs, you can temporarily overrule

the preset values and schedules, use the holiday mode…c

Underfloor heating or radiators – Wireless room thermostat

Setup

5.2.1 Single room

Underfloor heating or radiators – Wired room thermostat

Setup

A Main leaving water temperature zone B One single room

a User interface used as room thermostat

▪ The room temperature of the main room is controlled by the user

interface used as a room thermostat (optional equipment EKRUDAS).

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

Number of water temperature zones:

▪ #: [4.4]

▪ Code: [7-02]

2 (Room thermostat): Unit operation is decided based on the ambient temperature of the user interface.

0 (Single zone): Main

A Main leaving water temperature zone B One single room

a Receiver for wireless external room thermostat b Wireless external room thermostat

▪ The room temperature is controlled by the wireless external room

thermostat (optional equipment EKRTR1).

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

Number of water temperature zones:

▪ #: [4.4]

▪ Code: [7-02]

External room thermostat for the main zone:

▪ #: [2.A]

▪ Code: [C-05]

Benefits

▪ Wireless. The Daikin external room thermostat is available in a

wireless version.

▪ Efficiency. Although the external room thermostat only sends ON/

OFF signals, it is specifically designed for the heatpump system.

1 (External room thermostat): Unit operation is decided by the external thermostat.

0 (Single zone): Main

1 (1 contact): When the used external room thermostat or heatpump convector can only send a thermo ON/OFF condition.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

5 Application guidelines

Heatpump convectors

Setup

▪ The heat pump convectors are directly connected to the indoor

unit.

▪ The desired room temperature is set via the remote controller of

the heatpump convectors.

▪ The space heating demand signal is sent to one digital input on

the indoor unit (X2M/35 and X2M/30).

▪ The space operation mode is sent to the heatpump convectors by

one digital output on the indoor unit (X2M/4 and X2M/3).

INFORMATION

When using multiple heat pump convectors, make sure each one receives the infrared signal from the remote controller of the heatpump convectors.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

Number of water temperature zones:

▪ #: [4.4]

▪ Code: [7-02]

External room thermostat for the main zone:

▪ #: [2.A]

▪ Code: [C-05]

Benefits

▪ Efficiency. Optimal energy efficiency because of the interlink

function.

▪ Stylish.

1 (External room thermostat): Unit operation is decided by the external thermostat.

0 (Single zone): Main

1 (1 contact): When the used external room thermostat or heatpump convector can only send a thermo ON/OFF condition.

Combination: Underfloor heating + Heatpump convectors

▪ Space heating is provided by:

▪ The underfloor heating

▪ The heatpump convectors

Setup

A Main leaving water temperature zone B One single room

a Remote controller of the heatpump convectors

▪ The heat pump convectors are directly connected to the indoor

unit.

▪ The desired room temperature is set via the remote controller of

the heatpump convectors.

▪ The space heating demand signal is sent to one digital input on

the indoor unit (X2M/35 and X2M/30).

▪ The space operation mode is sent to the heat pump convectors by

one digital output (X2M/4 and X2M/3) on the indoor unit.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

Number of water temperature zones:

▪ #: [4.4]

▪ Code: [7-02]

External room thermostat for the main zone:

▪ #: [2.A]

▪ Code: [C-05]

Benefits

▪ Efficiency. Under floor heating has the best performance with

Altherma LT.

▪ Comfort. The combination of the two heat emitter types provides

excellent heating comfort of the underfloor heating.

1 (External room thermostat): Unit operation is decided by the external thermostat.

0 (Single zone): Main

1 (1 contact): When the used external room thermostat or heatpump convector can only send a thermo ON/OFF condition.

5.2.2 Multiple rooms – OneLWT zone

If only one leaving water temperature zone is needed because the design leaving water temperature of all heat emitters is the same, you do NOT need a mixing valve station (cost effective).

Example: If the heat pump system is used to heat up one floor where all the rooms have the same heat emitters.

Underfloor heating or radiators – Thermostatic valves

If you are heating up rooms with under floor heating or radiators, a very common way is to control the temperature of the main room by using a thermostat (this can either be the user interface or an external room thermostat), while the other rooms are controlled by so-called thermostatic valves, which open or close depending on the room temperature.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

5 Application guidelines

B C

a a

Setup

▪ The under floor heating of the main room is directly connected to

the indoor unit.

▪ The room temperature of the main room is controlled by the user

interface used as a room thermostat (optional equipment EKRUDAS).

▪ A thermostatic valve is installed before the under floor heating in

each of the other rooms.

INFORMATION

Mind situations where the main room can be heated by another heating source. Example: Fireplaces.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

Number of water temperature

2 (Room thermostat): Unit operation is decided based on the ambient temperature of the user interface.

0 (Single zone): Main

zones:

▪ #: [4.4]

▪ Code: [7-02]

▪ The user interface connected on the indoor unit decides the space

operation mode. Mind that the operation mode on each room thermostat must be set to match the indoor unit.

▪ The room thermostats are connected to the shut-off valves, but do

NOT have to be connected to the indoor unit. The indoor unit will supply leaving water all the time, with the possibility to program a leaving water schedule.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

0 (Leaving water): Unit operation is decided based on the leaving water temperature.

▪ Code: [C-07]

Number of water temperature

0 (Single zone): Main

zones:

▪ #: [4.4]

▪ Code: [7-02]

Benefits

Compared with underfloor heating or radiators for one room:

▪ Comfort. You can set the desired room temperature, including

schedules, for each room via the room thermostats.

Heatpump convectors – Multiple rooms

Setup

Benefits

▪ Easy. Same installation as for one room, but with thermostatic

valves.

Underfloor heating or radiators – Multiple external room thermostats

Setup

A Main leaving water temperature zone B Room 1 C Room 2

a External room thermostat

b Bypass valve

▪ For each room, a shut-off valve (field supplied) is installed to avoid

leaving water supply when there is no heating demand.

▪ A bypass valve must be installed to make water recirculation

possible when all shut-off valves are closed. To guarantee reliable operation, provide a minimum water flow as described in table "To check the water volume and flow rate" in "6.4 Preparing water

piping"on page25.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

A Main leaving water temperature zone B Room 1 C Room 2

a Remote controller of the heatpump convectors

▪ The desired room temperature is set via the remote controller of

the heatpump convectors.

▪ The user interface connected on the indoor unit decides the space

operation mode.

▪ The heating demand signals of each heat pump convector are

connected in parallel to the digital input on the indoor unit (X2M/1 and X2M/4). The indoor unit will only supply leaving water temperature when there is an actual demand.

INFORMATION

To increase comfort and performance, Daikin recommends to install the valve kit option EKVKHPC on each heatpump convector.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

1 (External room thermostat): Unit operation is decided by the external thermostat.

▪ Code: [C-07]

Installer reference guide

5 Application guidelines

B C

a a

Setting Value

Number of water temperature

0 (Single zone): Main

zones:

▪ #: [4.4]

▪ Code: [7-02]

Benefits

Compared with heatpump convectors for one room:

▪ Comfort. You can set the desired room temperature, including

schedules, for each room via the remote controller of the heatpump convectors.

Combination: Underfloor heating + Heatpump convectors – Multiple rooms

Setup

5.2.3 Multiple rooms – TwoLWT zones

If the heat emitters selected for each room are designed for different leaving water temperatures, you can use different leaving water temperature zones (maximum 2).

In this document:

▪ Main zone = Zone with the lowest design temperature

▪ Additional zone = Zone with the highest design temperature

CAUTION

When there is more than one leaving water zone, you must ALWAYS install a mixing valve station in the main zone to decrease (in heating) the leaving water temperature when the additional zone has demand.

Typical example:

Room (zone) Heat emitters: Design

temperature

Living room (main zone) Underfloor heating: 35°C

Bed rooms (additional zone) Heatpump convectors: 45°C

Setup

A Main leaving water temperature zone B Room 1 C Room 2

a External room thermostat b Remote controller of the heatpump convectors

▪ For each room with heat pump convectors: The heat pump

convectors are directly connected to the indoor unit.

▪ For each room with under floor heating: A shut-off valve (field

supply) is installed before the underfloor heating. It prevents hot water supply when the room has no heating demand.

▪ For each room with heat pump convectors: The desired room

temperature is set via the remote controller of the heat pump convectors.

▪ For each room with under floor heating: The desired room

temperature is set via the external room thermostat (wired or wireless).

▪ The user interface connected to the indoor unit decides the space

operation mode. Mind that the operation mode on each external room thermostat and remote controller of the heat pump convectors must be set to match the indoor unit.

INFORMATION

To increase comfort and performance, Daikin recommends to install the valve kit option EKVKHPC on each heatpump convector.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

0 (Leaving water): Unit operation is decided based on the leaving water temperature.

▪ Code: [C-07]

Number of water temperature zones:

▪ #: [4.4]

▪ Code: [7-02]

0 (Single zone): Main

A Additional leaving water temperature zone B Room 1 C Room 2 D Main leaving water temperature zone E Room 3

a Remote controller of the heatpump convectors b User interface used as room thermostat c Mixing valve station d Pressure regulating valve

INFORMATION

A pressure regulating valve should be implemented before the mixing valve station. This is to guarantee the correct water flow balance between the main leaving water temperature zone and the additional leaving water temperature zone in relation to the required capacity of both water temperature zones.

▪ For the main zone:

▪ A mixing valve station is installed before the underfloor heating.

▪ The pump of the mixing valve station is controlled by the ON/

OFF signal on the indoor unit (X2M/29 and X2M/21; normal closed shut-off valve output).

▪ The room temperature is controlled by the user interface, which

is used as room thermostat (optional equipment EKRUDAS).

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

5 Application guidelines

a b c e f

g h j

FHL1

FHL2

FHL3

▪ For the additional zone:

▪ The heat pump convectors are directly connected to the indoor

unit.

▪ The desired room temperature is set via the remote controller of

the heatpump convectors for each room.

▪ The heating demand signals of each heatpump convector are

connected in parallel to the digital input on the indoor unit (X2M/35 and X2M/30). The indoor unit will only supply the desired additional leaving water temperature when there is an actual demand.

▪ The user interface connected to the indoor unit decides the space

operation mode. Mind that the operation mode on each remote controller of the heatpump convectors must be set to match the indoor unit.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

2 (Room thermostat): Unit operation is decided based on the ambient temperature of the user interface.

Note:

▪ Main room = user interface

used as room thermostat functionality

▪ Other rooms = external room

thermostat functionality

Number of water temperature

1 (Dual zone): Main + additional

zones:

▪ #: [4.4]

▪ Code: [7-02]

In case of heatpump convectors:

External room thermostat for the additional zone:

▪ #: [3.A]

1 (1 contact): When the used external room thermostat or heatpump convector can only send a thermo ON/OFF condition.

▪ Code: [C-06]

Shut-off valve output Set to follow the thermo demand

of the main zone.

At the mixing valve station Set the desired main leaving

water temperature.

5.3 Setting up an auxiliary heat source for space heating

▪ Space heating can be done by:

▪ The indoor unit

▪ An auxiliary boiler (field supply) connected to the system

▪ When the room thermostat requests heating, the indoor unit or the

auxiliary boiler starts operating depending on the outdoor temperature (status of the changeover to external heat source). When the permission is given to the auxiliary boiler, the space heating by the indoor unit is turned OFF.

▪ Bivalent operation is only possible for space heating, NOT for

domestic hot water production. Domestic hot water is always produced by the DHW tank connected to the indoor unit.

INFORMATION

▪ During heating operation of the heat pump, the

heat pump operates to achieve the desired temperature set via the user interface. When weatherdependent operation is active, the water temperature is determined automatically depending on the outdoor temperature.

▪ During heating operation of the auxiliary boiler, the

auxiliary boiler operates to achieve the desired water temperature set via the auxiliary boiler controller.

Setup

▪ Integrate the auxiliary boiler as follows:

Benefits

▪ Comfort.

▪ The smart room thermostat functionality can decrease or

increase the desired leaving water temperature based on the actual room temperature (modulation).

▪ The combination of the two heat emitter systems provides the

excellent heating comfort of the under floor heating, and the rapid air heat up of the heat pump convectors (e.g., living room=under floor heating and the bedroom=convector (no continuous heating)).

▪ Efficiency.

▪ Depending on the demand, the indoor unit supplies different

leaving water temperature matching the design temperature of the different heat emitters.

▪ Underfloor heating has the best performance with Altherma LT.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

a Outdoor unit b Indoor unit c Heat exchanger d Anti-legionella heater e Pump

f Shut-off valve g Motorised 3‑way valve h Non-return valve (field supply)

i Shut-off valve (field supply)

j Collector (field supply) k Auxiliary boiler (field supply)

l Aquastat valve (field supply)

m DHW tank

n Heat exchanger coil

FHL1...3 Underfloor heating

Installer reference guide

5 Application guidelines

Com

K2AK1A

X2M

K2AK1A

Indoor/Auto/Boiler

3530 X Y

Indoor

FHL1

FHL2

FHL3

a b c hh if

NOTICE

▪ Make sure the auxiliary boiler and its integration in the

system complies with applicable legislation.

▪ Daikin is NOT responsible for incorrect or unsafe

situations in the auxiliary boiler system.

▪ Make sure the return water to the heatpump does NOT exceed

55°C. To do so:

▪ Set the desired water temperature via the auxiliary boiler

controller to maximum 55°C.

▪ Install an aquastat valve in the return water flow of the

heatpump.

▪ Set the aquastat valve to close above 55°C and to open below

55°C.

▪ Install non-return valves.

▪ Make sure to only have one expansion vessel in the water circuit.

An expansion vessel is already pre-mounted in the indoor unit.

▪ Install the digital I/O PCB (option EKRP1HB).

▪ Connect X1 and X2 (changeover to external heat source) on the

digital I/O PCB to the auxiliary boiler thermostat.

▪ To setup the heat emitters, see "5.2Setting up the space heating

system"on page11.

Configuration

Via the user interface (quick wizard):

▪ Set the use of a bivalent system as external heat source.

▪ Set the bivalent temperature and hysteresis.

K2A Auxiliary relay for activation of boiler (field supply)

Indoor Indoor unit

Auto Automatic

Boiler Boiler

NOTICE

▪ Make sure the auxiliary contact has enough differential

or time delay to prevent frequent changeover between indoor unit and auxiliary boiler.

▪ If the auxiliary contact is an outdoor temperature

thermostat, install the thermostat in the shadow so that it is NOT influenced or turned ON/OFF by direct sunlight.

▪ Frequent changeover may cause corrosion of the

auxiliary boiler. Contact the manufacturer of the auxiliary boiler for more information.

5.4 Setting up the domestic hot water tank

The DHW tank is integrated in the indoor unit, and contains a 2.4kW anti-legionella heater. The anti-legionella heater contains 2 safeties: a thermal cut-out and a thermal fuse. If a certain temperature is exceeded, the safeties deactivate the anti-legionella heater.

5.4.1 System layout – Integrated DHW tank

Changeover to external heat source decided by an auxiliary contact

▪ Only possible in external room thermostat control AND one

leaving water temperature zone (see "5.2 Setting up the space

heating system"on page11).

▪ The auxiliary contact can be:

▪ An outdoor temperature thermostat

▪ An electricity tariff contact

▪ A manually operated contact

▪ …

▪ Setup: Connect the following field wiring:

Installer reference guide

NOTICE

▪ Make sure the bivalent hysteresis has enough

differential to prevent frequent changeover between indoor unit and auxiliary boiler.

▪ Because the outdoor temperature is measured by the

outdoor unit air thermistor, install the outdoor unit in the shadow so that it is NOT influenced or turned ON/OFF by direct sunlight.

▪ Frequent changeover may cause corrosion of the

auxiliary boiler. Contact the manufacturer of the auxiliary boiler for more information.

BTIBoiler thermostat input

A Auxiliary contact (normal closed) H Heating demand room thermostat (optional)

K1A Auxiliary relay for activation of indoor unit (field supply)

a Outdoor unit b Indoor unit c Heat exchanger d Anti-legionella heater e Pump

f Motorised 3‑way valve g DHW tank h Shut-off valve

i Collector (field supply)

FHL1...3 Underfloor heating

UI User interface

5.4.2 Selecting the volume and desired temperature for the DHW tank

People experience water as hot when its temperature is 40°C. Therefore, the DHW consumption is always expressed as equivalent hot water volume at 40°C. However, you can set the DHW tank temperature at a higher temperature (example: 53°C), which is then mixed with cold water (example: 15°C).

Selecting the desired temperature for the DHW tank consists of:

1 Determining the DHW consumption (equivalent hot water

volume at 40°C).

2 Determining the desired temperature for the DHW tank.

Determining the DHW consumption

Answer the following questions and calculate the DHW consumption (equivalent hot water volume at 40°C) using typical water volumes:

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5 Application guidelines

c f

d f

e g

Question Typical water volume

How many showers are needed per day?

How many baths are needed per day?

How much water is needed at the kitchen sink per day?

Are there any other domestic hot water needs?

1shower = 10min×10l/min = 100l

1bath = 150l

1sink = 2min×5l/min = 10l

—

▪ The higher the outdoor temperature, the better the performance of

the heatpump.

▪ If energy prices are the same during the day and the night,

Daikin recommends to heat up the DHW tank during the day.

▪ If energy prices are lower during the night, Daikin recommends

to heat up the DHW tank during the night.

▪ When the heatpump produces domestic hot water, it cannot heat

up a space. In case you need domestic hot water and space heating at the same, Daikin recommends to produce the domestic hot water during the night when there is lower space heating

Example: If the DHW consumption of a family (4 persons) per day

demand.

is as follows:

▪ 3 showers

▪ 1 bath

▪ 3 sink volumes

Then the DHW consumption = (3×100l)+(1×150l)+(3×10l)=480l

Determining the volume and desired temperature for the DHW tank

Formula Example

V1=V2+V2×(T2−40)/(40−T1) If:

▪ V2=180l

▪ T2=54°C

▪ T1=15°C

5.4.3 Setup and configuration – DHW tank

▪ For large DHW consumptions, you can heat up the DHW tank

several times during the day.

▪ To heat up the DHW tank to the desired DHW tank temperature,

you can use the following energy sources:

▪ Thermodynamic cycle of the heatpump

▪ Anti-legionella heater

▪ For more information about optimizing the energy consumption for

producing domestic hot water, see "8Configuration"on page47.

5.4.4 DHW pump for instant hot water

Setup

Then V1=280l

V2=V1×(40−T1)/(T2−T1) If:

▪ V1=480l

▪ T2=54°C

▪ T1=15°C

Then V2=307l

V1DHW consumption (equivalent hot water volume at 40°C) V2Required DHW tank volume if only heated once T2DHW tank temperature T1Cold water temperature

Possible DHW tank volumes

Type Possible volumes

Integrated DHW tank ▪ 230l

Energy saving tips

▪ If the DHW consumption differs from day to day, you can program

a weekly schedule with different desired DHW tank temperatures for each day.

▪ The lower the desired DHW tank temperature, the more cost

effective. By selecting a larger DHW tank, you can lower the desired DHW tank temperature.

▪ The heatpump itself can produce domestic hot water of maximum

55°C (50°C if outdoor temperature is low). The electrical

▪ By connecting a DHW pump, instant hot water can be available at

the tap.

▪ The DHW pump and the installation are field supply and the

responsibility of the installer.

▪ For more information about connecting the recirculation

connection: see "7Installation"on page29.

Configuration

▪ For more information, see "8Configuration"on page47.

▪ You can program a schedule to control the DHW pump via the

user interface. For more information, see the user reference guide.

a Indoor unit b DHW tank c DHW pump (field supply)

f Shower (field supply) g Cold water h Domestic hot water OUT

i Recirculation connection

j Anti-legionella heater

resistance integrated in the DHW tank (anti-legionella heater) can increase this temperature. However, this consumes more energy. Daikin recommends to set the desired DHW tank temperature below 55°C to avoid using the electrical resistance.

5.4.5 DHW pump for disinfection

Setup

The anti-legionella heater:

▪ Is used as emergency heater.

▪ Is used when the disinfection function for the DHW tank is

active.

▪ Can assist during defrost operation for the outdoor unit.

a Indoor unit b DHW tank c DHW pump (field supply) d Heater element (field supply) e Non‑return valve (field supply)

f Shower (field supply) g Cold water

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Installer reference guide

5 Application guidelines

h Domestic hot water OUT

i Recirculation connection j Anti-legionella heater

▪ The DHW pump is field-supplied and its installation is the

responsibility of the installer.

▪ The temperature of the DHW tank can be set to maximum 70°C. If

the applicable legislation requires a higher temperature for disinfection, you can connect a DHW pump and heater element as shown above.

▪ If applicable legislation requires disinfection of the water piping

until the tapping point, you can connect a DHW pump and heater element (if needed) as shown above.

Configuration

The indoor unit can control DHW pump operation. For more information, see "8Configuration"on page47.

5.5 Setting up the energy metering

▪ Via the user interface, you can read out the following energy data:

▪ Produced heat

▪ Consumed energy

▪ You can read out the energy data:

▪ For space heating

▪ For domestic hot water production

▪ You can read out the energy data:

▪ Per month

▪ Per year

INFORMATION

The calculated produced heat and consumed energy are an estimation, the accuracy cannot be guaranteed.

INFORMATION

You cannot combine calculating the consumed energy (example: for anti‑legionella heater) and measuring the consumed energy (example: for outdoor unit). If you do so, the energy data will be invalid.

Calculating the consumed energy

▪ The consumed energy is calculated internally based on:

▪ The actual power input of the outdoor unit

▪ The set capacity of the backup heater (if applicable) and anti-

legionella heater

▪ The voltage

▪ Setup and configuration: To get accurate energy data, measure

the capacity (resistance measurement) and set the capacity via the user interface for:

▪ The backup heater (step1 and step2) (if applicable)

▪ The anti-legionella heater

Measuring the consumed energy

▪ Applicable for all models.

▪ Preferred method because of higher accuracy.

▪ Requires external power meters.

▪ Setup and configuration: When using electrical power meters, set

the number of pulses/kWh for each power meter via the user interface.

INFORMATION

When measuring the electrical power consumption, make sure ALL power input of the system is covered by the electrical power meters.

5.5.3 Normal kWh rate power supply

5.5.1 Produced heat

INFORMATION

The sensors used to calculate the produced heat are calibrated automatically.

▪ Applicable for all models.

▪ The produced heat is calculated internally based on:

▪ The leaving and entering water temperature

▪ The flow rate

▪ The power consumption of the anti-legionella heater in the

domestic hot water tank

▪ Setup and configuration:

▪ No additional equipment needed.

▪ Measure the capacity (resistance measurement) of the anti-

legionella heater and set the capacity via the user interface. Example: If you measure an anti-legionella heater resistance of 24Ω, the capacity of the heater at 230V is 2200W.

5.5.2 Consumed energy

You can use the following methods to determine the consumed energy:

▪ Calculating

▪ Measuring

General rule

One power meter that covers the entire system is sufficient.

Setup

Connect the power meter to X5M/5 and X5M/6.

Power meter type

In case of… Use a… power meter

▪ Single-phase outdoor unit

▪ No backup heater or optional

backup heater supplied from a single-phase grid

In other cases (i.e. a three-phase outdoor unit and/or optional backup heater connected to a three-phase grid)

Single-phase

Three-phase

Installer reference guide

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5 Application guidelines

c c

c c d



e efe



0 1

Example

Single-phase power meter Three-phase power meter

A Outdoor unit

B Indoor unit

C DHW tank

a Electrical cabinet (L1/N)

b Power meter (L1/N)

c Fuse (L1/N)

d Outdoor unit (L1/N)

e Indoor unit (L1/N)

f Backup heater (L1/N) (optional)

g Anti-legionella heater (L1/N)

A Outdoor unit

B Indoor unit

C DHW tank

a Electrical cabinet (L1/L2/L3/N)

b Power meter (L1/L2/L3/N)

c Fuse (L1/L2/L3/N)

d Fuse (L1/N)

e Outdoor unit (L1/L2/L3/N)

f Indoor unit (L1/L2/L3/N)

g Backup heater (L1/L2/L3/N)

(optional)

h Anti-legionella heater (L1/N)

Exception

▪ You can use a second power meter if:

▪ The power range of one meter is insufficient.

▪ The electrical meter cannot easily be installed in the electrical

cabinet.

▪ 230 V and 400 V three-phase grids are combined (very

uncommon), because of technical limitations of power meters.

▪ Connection and setup:

▪ Connect the second power meter to X5M/3 and X5M/4.

▪ In the software the power consumption data of both meters is

added so you do NOT have to set which meter covers which power consumption. You only need to set the number of pulses of each power meter.

▪ See "5.5.4 Preferential kWh rate power supply"on page 19 for

an example with two power meters.

5.5.4 Preferential kWh rate power supply

General rule

▪ Power meter1: Measures the outdoor unit.

▪ Power meter 2: Measures the rest (i.e. indoor unit, optional

backup heater, and anti-legionella heater).

Setup

▪ Connect power meter1 to X5M/5 and X5M/6.

▪ Connect power meter2 to X5M/3 and X5M/4.

Power meter types

▪ Power meter1: Single- or three-phase power meter according to

the power supply of the outdoor unit.

▪ Power meter2:

▪ In case of no backup heater or an optional single-phase backup

heater configuration, use a single-phase power meter.

▪ In other cases, use a three-phase power meter.

Example

Single-phase outdoor unit with an optional three-phase backup heater:

A Outdoor unit B Indoor unit C DHW tank

a Electrical cabinet (L1/N): Preferential kWh rate power

supply

b Electrical cabinet (L1/L2/L3/N): Normal kWh rate power

supply

c Power meter (L1/N) d Power meter (L1/L2/L3/N) e Fuse (L1/N)

f Fuse (L1/L2/L3/N) g Outdoor unit (L1/N) h Indoor unit (L1/N)

i Backup heater (L1/L2/L3/N) (optional)

j Anti-legionella heater (L1/N)

5.6 Setting up the power consumption control

▪ The power consumption control:

▪ Allows you to limit the power consumption of the entire system

(sum of outdoor unit, indoor unit, anti-legionella heater, and optional backup heater).

▪ Configuration: Set the power limitation level and how it has to

be achieved via the user interface.

▪ The power limitation level can be expressed as:

▪ Maximum running current (inA)

▪ Maximum power input (inkW)

▪ The power limitation level can be activated:

▪ Permanently

▪ By digital inputs

5.6.1 Permanent power limitation

Permanent power limitation is useful to assure a maximum power or current input of the system. In some countries, legislation limits the maximum power consumption for space heating and DHW production.

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Installer reference guide

5 Application guidelines

A8P

DI4

DI3

DI1

A B C

PiPower input

t Time

DI Digital input (power limitation level)

a Power limitation active b Actual power input

Setup and configuration

▪ No additional equipment needed.

▪ Set the power consumption control settings in [9.9] via the user

interface (for the description of all settings, see

"8Configuration"on page47):

▪ Select continuous limitation mode

▪ Select the type of limitation (power in kW or current in A)

▪ Set the desired power limitation level

5.6.2 Power limitation activated by digital inputs

Power limitation is also useful in combination with an energy management system.

The power or current of the entire Daikin system is limited dynamically by digital inputs (maximum four steps). Each power limitation level is set via the user interface by limiting one of the following:

▪ Current (in A)

▪ Power input (in kW)

The energy management system (field supply) decides the activation of a certain power limitation level. Example: To limit the maximum power of the entire house (lighting, domestic appliances, space heating…).

Setup

▪ Demand PCB (option EKRP1AHTA) needed.

▪ Maximum four digital inputs are used to activate the

corresponding power limitation level:

▪ DI1 = weakest limitation (highest energy consumption)

▪ DI4 = strongest limitation (lowest energy consumption)

▪ For the specifications of the digital inputs, and for where to

connect them, refer to the wiring diagram.

Configuration

▪ Set the power consumption control settings in [9.9] via the user

interface (for the description of all settings, see

"8Configuration"on page47):

▪ Select limitation by digital inputs.

▪ Select the type of limitation (power in kW or current in A).

▪ Set the desired power limitation level corresponding to each

digital input.

INFORMATION

In case more than 1 digital input is closed (at the same time), the digital input priority is fixed: DI4 priority>…>DI1.

5.6.3 Power limitation process

The outdoor unit has better efficiency than the electrical heaters. Therefore, the electrical heaters are limited and turned OFF first. The system limits power consumption in the following order:

1 Limits certain electrical heaters.

If… has priority Then set the priority heater

via the user interface to…

Domestic hot water production Booster heater (Anti-legionella

heater).

Result: The backup heater (if applicable) will be turned OFF first.

Space heating Backup heater (if applicable).

Result: The anti-legionella heater will be turned OFF first.

A Outdoor unit B Indoor unit C DHW tank D Energy management system

a Power limitation activation (4 digital inputs) b Anti-legionella heater

PiPower input

t Time

DI Digital inputs (power limitation levels)

a Power limitation active b Actual power input

Installer reference guide

2 Turns OFF all electrical heaters.

3 Limits the outdoor unit.

4 Turns OFF the outdoor unit.

Example

If the configuration is as follows:

▪ Power limitation level does NOT allow operation of both anti-

legionella heater and backup heater (step 1 and step 2) (if applicable).

▪ Priority heater = Anti-legionella heater.

Then power consumption is limited as follows:

PhProduced heat CeConsumed energy

A Outdoor unit B Anti-legionella heater C Backup heater (optional)

a Limited outdoor unit operation

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6 Preparation

≤1200

>250

>350

(mm)(mm)

>100

>350

(mm)

>100

b Full outdoor unit operation

c Anti-legionella heater turned ON

d Backup heater step1 turned ON (if applicable)

e Backup heater step2 turned ON (if applicable)

5.7 Setting up an external temperature sensor

You can connect one external temperature sensor. It can measure the indoor or outdoor ambient temperature. Daikin recommends to use an external temperature sensor in the following cases:

Indoor ambient temperature

▪ In room thermostat control, the user interface used as room

thermostat (EKRUDAS) measures the indoor ambient temperature. Therefore, the user interface used as room thermostat must be installed on a location:

▪ Where the average temperature in the room can be detected

▪ That is NOT exposed to direct sunlight

▪ That is NOT near a heat source

▪ That is NOT affected by outside air or air draught because of,

for example, door opening/closing

▪ If this is NOT possible, Daikin recommends to connect a remote

indoor sensor (option KRCS01-1).

▪ Setup: For installation instructions, see the installation manual of

the remote indoor sensor.

▪ Configuration: Select room sensor [9.B].

Outdoor ambient temperature

▪ In the outdoor unit, the outdoor ambient temperature is measured.

Therefore, the outdoor unit must be installed on a location:

▪ At the north side of the house or at the side of the house where

the most heat emitters are located

▪ That is NOT exposed to direct sunlight

▪ If this is NOT possible, Daikin recommends to connect a remote

outdoor sensor (option EKRSCA1).

▪ Setup: For installation instructions, see the installation manual of

the remote outdoor sensor.

▪ Configuration: Select outdoor sensor [9.B].

▪ When the power saving functionality of the outdoor unit is active

(see "8 Configuration" on page 47), the outdoor unit is turned down to reduce standby energy losses. As a result, the outdoor ambient temperature is NOT read out.

▪ If the desired leaving water temperature is weather dependent, the

full time outdoor temperature measurement is important. This is another reason to install the optional outdoor ambient temperature sensor.

INFORMATION

The external outdoor ambient sensor data (either averaged or instantaneous) is used in the weather-dependent control curves. To protect the outdoor unit, the internal sensor of the outdoor unit is always used.

▪ Preparing the refrigerant piping

▪ Preparing the water piping

▪ Preparing the electrical wiring

6.2 Preparing the installation site

Do NOT install the unit in places often used as work place. In case of construction works (e.g. grinding works) where a lot of dust is created, the unit MUST be covered.

Choose an installation location with sufficient space for carrying the unit in and out of the site.

WARNING

The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater).

WARNING

DO NOT reuse refrigerant piping that has been used with any other refrigerant. Replace the refrigerant pipes or clean thoroughly.

6.2.1 Installation site requirements of the outdoor unit

INFORMATION

6.1 Overview: Preparation

This chapter describes what you have to do and know before going on-site.

It contains information about:

▪ Preparing the installation site

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

a Low sound cover

NOTICE

▪ Do NOT stack the units on each other.

▪ Do NOT hang the unit on a ceiling.

Installer reference guide

6 Preparation

4×

Strong winds (≥18 km/h) blowing against the outdoor unit’s air outlet causes short circuit (suction of discharge air). This may result in:

▪ deterioration of the operational capacity;

▪ frequent frost acceleration in heating operation;

▪ disruption of operation due to decrease of low pressure or

increase of high pressure;

▪ a broken fan (if a strong wind blows continuously on the fan, it

may start rotating very fast, until it breaks).

It is recommended to install a baffle plate when the air outlet is exposed to wind.

It is recommended to install the outdoor unit with the air inlet facing the wall and NOT directly exposed to the wind.

a Baffle plate b Prevailing wind direction c Air outlet

Do NOT install the unit in the following places:

▪ Sound sensitive areas (e.g. near a bedroom), so that the

operation noise will cause no trouble. Note: If the sound is measured under actual installation conditions, the measured value might be higher than the sound pressure level mentioned in Sound spectrum in the data book due to environmental noise and sound reflections.

▪ In places where a mineral oil mist, spray or vapour may be

present in the atmosphere. Plastic parts may deteriorate and fall off or cause water leakage.

It is NOT recommended to install the unit in the following places because it may shorten the life of the unit:

▪ Where the voltage fluctuates a lot

▪ In vehicles or vessels

▪ Where acidic or alkaline vapour is present

Seaside installation. Make sure the outdoor unit is NOT directly exposed to sea winds. This is to prevent corrosion caused by high levels of salt in the air, which might shorten the life of the unit.

If the outdoor unit is exposed to direct sea winds, install a windbreaker.

▪ Height of windbreaker≥1.5×height of outdoor unit

▪ Mind the service space requirements when installing the

windbreaker.

a Sea wind b Building c Outdoor unit d Windbreaker

The outdoor unit is designed for outdoor installation only, and for the following ambient temperatures:

Cooling mode 10~43°C

Heating mode –25~25°C

6.2.2 Additional installation site requirements of the outdoor unit in cold climates

In areas with low ambient temperatures and high humidity, or in areas with heavy snowfall, remove the suction grille to ensure proper operation.

Non-exhaustive list of areas: Austria, Czech Republic, Denmark, Estonia, Finland, Germany, Hungary, Latvia, Lithuania, Norway, Poland, Romania, Serbia, Slovakia, Sweden, …

1 Remove the screws holding the suction grille.

2 Remove the suction grille, and dispose of it.

3 Reattach the screws to the unit.

Install the outdoor unit away from direct sea winds.

Example: Behind the building.

Installer reference guide

a Suction grille

Protect the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up.

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a Snow cover or shed

≥300

≥600

≥

500

(mm)

b Pedestal

c Prevailing wind direction

d Air outlet

e EKFT008D option kit

In any case, provide at least 300mm of free space below the unit. Additionally, make sure the unit is positioned at least 100mm above the maximum expected level of snow. See "7.3 Mounting the

outdoor unit"on page31 for more details.

In heavy snowfall areas it is very important to select an installation site where the snow will NOT affect the unit. If lateral snowfall is possible, make sure that the heat exchanger coil is NOT affected by the snow. If necessary, install a snow cover or shed and a pedestal.

6.2.3 Installation site requirements of the indoor unit

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

▪ The indoor unit is designed for indoor installation only and for the

following ambient temperatures:

▪ Space heating operation: 5~30°C

▪ Domestic hot water production: 5~35°C

▪ Mind the following measurements guidelines:

Maximum refrigerant piping length between indoor unit and outdoor unit

Minimum refrigerant piping length between indoor unit and outdoor unit

Maximum height difference between indoor unit and outdoor unit

▪ Mind the following spacing installation guidelines:

30m

3m

20m

6 Preparation

INFORMATION

If you have limited installation space, do the following before installing the unit in its final position: "7.4.4 To

connect the drain hose to the drain" on page 34. It

requires to remove one or both side panels.

▪ The foundation must be strong enough to bear the weight of the

unit. Take the weight of the unit with a domestic hot water tank full of water into account. Make sure, in the event of a water leak, water cannot cause any damage to the installation space and surroundings.

Do NOT install the unit in places such as:

▪ In places where a mineral oil mist, spray or vapour may be

present in the atmosphere. Plastic parts may deteriorate and fall off or cause water leakage.

▪ Sound sensitive areas (e.g. near a bedroom), so that the

operation noise will cause no trouble.

▪ In places with high humidity (max. RH=85%), for example a

bathroom.

▪ In places where frost is possible. Ambient temperature around the

indoor unit must be >5°C.

Special requirements for R32

WARNING

▪ Do NOT pierce or burn.

▪ Do NOT use means to accelerate the defrosting

process or to clean the equipment, other than those recommended by the manufacturer.

▪ Be aware that R32 refrigerant does NOT contain an

odour.

WARNING

The appliance shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater) and have a room size as specified below.

NOTICE

▪ Do NOT re-use joints which have been used already.

▪ Joints made in installation between parts of refrigerant

system shall be accessible for maintenance purposes.

WARNING

Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons.

NOTICE

▪ Pipework shall be protected from physical damage.

▪ Installation of pipework shall be kept to a minimum.

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Installer reference guide

6 Preparation

Input from installer:

▪ Total refrigerant charge (m

) (kg)

▪ Area of room A (A

room A

) (m2)

Start

Use table 1 in chapter "Technical data" to calculate the maximum refrigerant charge (m

max

) (kg) allowed for room A.

Contact your dealer.

Use table 3 in chapter "Technical data" and dm to calculate the minimum opening area for natural ventilation between room A and

room B (VA

min

) (cm2).

Unit can be installed at room A if: ▪ 2 ventilation openings (permanently open) are provided between room A and B, 1 at the top and 1 at the bottom. ▪ Bottom opening: The bottom opening must meet the minimum area requirements (VA

min

). It must be as close as possible to the floor. If the ventilation opening starts from the floor, the height must be ≥20 mm. The bottom of the opening must be situated ≤100 mm from the floor. At least 50% of the required opening area must be situated <200 mm from the floor. The entire area of the opening must be situated <300 mm from the floor.

▪ Top opening: The area of the top opening must be larger than or equal to the bottom opening. The bottom of the top opening must be situated at least 1.5 m

above the top of the bottom opening.

▪ Ventilation openings to the outside are NOT considered suitable ventilation openings (the user can block them when it is cold).

The unit can be installed in room A, and without further room size or ventilation requirements.

Determine the refrigerant amount that exceeds

max

(dm) (kg). (dm=mc–m

max

)

max≥mc

Yes

Use table 2 in chapter "Technical data" to calculate the total minimum floor area (A

min total

) (m2) required for the total refrigerant

charge (m

min total≤Aroom A+Aroom B

Yes

Input from installer:

▪ Area of adjacent room B (A

room B

) (m2)

a Indoor unit A Room where the indoor unit is installed. B Room adjacent to room A.

≥1.5 m

If the total refrigerant charge in the system is ≥1.84kg (i.e. if the piping length is ≥27m), you need to comply with the minimum floor area requirements as described in the following flow chart. The flow chart uses the following tables: "14.5Table 1 – Maximum refrigerant charge

allowed in a room: indoor unit" on page 94, "14.6 Table 2 – Minimum floor area: indoor unit" on page94 and "14.7 Table 3 – Minimum venting opening area for natural ventilation: indoor unit"on page94.

INFORMATION

Systems with a total refrigerant charge (mc) <1.84kg (i.e. if the piping length is <27 m) are NOT subjected to any requirements to the installation room.

INFORMATION

Multiple indoor units. If two or more indoor units are

installed in a room, you must consider the maximum refrigerant charge that can be released in the room when a SINGLE leak occurs. Example: If two indoor units are installed in the room, each with its own outdoor unit, then you have to consider the refrigerant charge of the largest indoor-outdoor combination.

Installer reference guide

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6 Preparation

ØiØ

ØpØ

6.3 Preparing refrigerant piping

6.3.1 Refrigerant piping requirements

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

▪ Piping material: Phosphoric acid deoxidised seamless copper.

▪ Piping diameter:

Liquid piping Ø6.4mm (1/4")

Gas piping Ø15.9mm (5/8")

▪ Piping temper grade and thickness:

Outer diameter

(Ø)

6.4mm (1/4") Annealed (O) ≥0.8mm

15.9mm (5/8") Annealed (O) ≥1.0mm

(a) Depending on the applicable legislation and the unit's

Temper grade Thickness (t)

maximum working pressure (see "PS High" on the unit name plate), larger piping thickness might be required.

(a)

6.3.2 Refrigerant piping insulation

▪ Use polyethylene foam as insulation material:

▪ with a heat transfer rate between 0.041 and 0.052W/mK (0.035

and 0.045kcal/mh°C)

▪ with a heat resistance of at least 120°C

▪ Insulation thickness

Pipe outer diameter

(Øp)

6.4mm (1/4") 8~10mm 10mm

15.9mm (5/8") 16~20mm 13mm

If the temperature is higher than 30°C and the humidity is higher than RH 80%, the thickness of the insulation materials should be at least 20 mm to prevent condensation on the surface of the insulation.

Insulation inner

diameter (Øi)

Insulation thickness

(t)

6.4 Preparing water piping

▪ Valve towards expansion vessel. The valve towards the

expansion vessel (if equipped) MUST be open.

6.4.1 Water circuit requirements

▪ Connecting piping – Force. Do NOT use excessive force when

connecting the piping. Deformation of the piping can cause malfunctioning of the unit.

▪ Connecting piping – Tools. Only use appropriate tooling to

handle brass, which is a soft material. If NOT, pipes will get damaged.

▪ Connecting piping – Air, moisture, dust. If air, moisture or dust

gets into the circuit, problems may occur. To prevent this:

▪ Only use clean pipes

▪ Hold the pipe end downwards when removing burrs.

▪ Cover the pipe end when inserting it through a wall, to prevent

dust and/or particles entering the pipe.

▪ Use a decent thread sealant to seal connections.

▪ Closed circuit. Use the indoor unit ONLY in a closed water

system. Using the system in an open water system will lead to excessive corrosion.

▪ Glycol. For safety reasons, it is NOT allowed to add any kind of

glycol to the water circuit.

▪ Piping length. It is recommended to avoid long runs of piping

between the domestic hot water tank and the hot water end point (shower, bath,…) and to avoid dead ends.

▪ Piping diameter. Select the water piping diameter in relation to

the required water flow and the available external static pressure of the pump. See "14 Technical data"on page88 for the external static pressure curves of the indoor unit.

▪ Water flow. You can find the minimum required water flow for

indoor unit operation in the following table. In all cases, this flow needs to be guaranteed. When the flow is lower, the indoor unit will stop operation and display error 7H.

Minimum required flow rate

12l/min

▪ Field supply components – Water. Only use materials that are

compatible with water used in the system and with the materials used in the indoor unit.

▪ Field supply components – Water pressure and temperature.

Check that all components in the field piping can withstand the water pressure and water temperature.

▪ Water pressure. The maximum water pressure is 4 bar. Provide

adequate safeguards in the water circuit to ensure that the maximum pressure is NOT exceeded.

▪ Water temperature. All installed piping and piping accessories

(valve, connections,…) MUST withstand the following temperatures:

INFORMATION

The following illustration is an example and might NOT match your system layout.

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

NOTICE

In case of plastic pipes, make sure they are fully oxygen diffusion tight according to DIN 4726. The diffusion of oxygen into the piping can lead to excessive corrosion.

▪ Connecting piping – Legislation. Make all piping connections in

accordance with the applicable legislation and the instructions in the "Installation" chapter, respecting the water inlet and outlet.

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Installer reference guide

6 Preparation

FCU1

FCU2

FCU3

FHL1

FHL2

FHL3

e f

g f h

j dk

89°C

75°C

c d

a b

a Outdoor unit b Indoor unit c Heat exchanger d Anti-legionella heater e Pump

f Stop valve g Motorised 3-way valve h Motorised 2-way valve (field supply)

i Collector j Domestic hot water tank

k Heat exchanger coil

FCU1...3 Fan coil unit (optional) (field supply)

FHL1...3 Floor heating loop (field supply)

▪ Drainage – Low points. Provide drain taps at all low points of the

system in order to allow complete drainage of the water circuit.

▪ Drainage – Pressure relief valve. Connect the drain hose

properly to the drain to avoid water dripping out of the unit. See

"7.4.4To connect the drain hose to the drain"on page34.

▪ Air vents. Provide air vents at all high points of the system, which

must also be easily accessible for servicing. Two automatic air purges are provided in the indoor unit. Check that the air purges are NOT tightened too much, so that automatic release of air in the water circuit is possible.

▪ Zn-coated parts. Never use Zn-coated parts in the water circuit.

Because the unit's internal water circuit uses copper piping, excessive corrosion may occur.

▪ Non-brass metallic piping. When using non-brass metallic

piping, insulate the brass and non-brass properly so that they do NOT make contact with each other. This to prevent galvanic corrosion.

▪ Valve – Change‑over time. When using a 2-way valve or a 3-way

valve in the water circuit, the maximum change-over time of the valve must be 60seconds.

▪ Domestic hot water tank – Capacity. To avoid stagnation of

water, it is important that the storage capacity of the domestic hot water tank meets the daily consumption of domestic hot water.

▪ Domestic hot water tank – After installation. Immediately after

installation, the domestic hot water tank must be flushed with fresh water. This procedure must be repeated at least once a day the first 5 consecutive days after installation.

▪ Domestic hot water tank – Standstills. In cases where during

longer periods of time there is no consumption of hot water, the equipment MUST be flushed with fresh water before usage.

▪ Domestic hot water tank – Disinfection. For the disinfection

function of the domestic hot water tank, see "8.4.6 Tank" on

page60.

▪ Thermostatic mixing valves. In accordance with the applicable

legislation, it may be necessary to install thermostatic mixing valves.

▪ Hygienic measures. The installation must be in compliance with

the applicable legislation and may require additional hygienic installation measures.

▪ Recirculation pump. In accordance with the applicable

legislation, it may be required to connect a recirculation pump in between the hot water end point and the recirculation connection of the domestic hot water tank.

a Recirculation connection b Hot water connection c Shower d Recirculation pump

▪ Valve towards expansion vessel. The valve towards the

expansion vessel (if equipped) MUST be open.

6.4.2 Formula to calculate the expansion vessel pre-pressure

The pre-pressure (Pg) of the vessel depends on the installation height difference (H):

Pg=0.3+(H/10) (bar)

6.4.3 To check the water volume and flow rate

The indoor unit has an expansion vessel of 10litre with a factory-set pre-pressure of 1bar.

To make sure that the unit operates properly:

▪ You must check the minimum and maximum water volume.

▪ You might need to adjust the pre-pressure of the expansion

vessel.

Minimum water volume

Check that the total water volume in the installation is minimum 20litres without backup heater and minimum 10litres with optional backup heater, the internal water volume of the indoor unit NOT included.

INFORMATION

In critical processes, or in rooms with a high heat load, extra water might be required.

NOTICE

When circulation in each space heating/cooling loop is controlled by remotely controlled valves, it is important that the minimum water volume is guaranteed, even if all of the valves are closed.

Installer reference guide

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Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

6 Preparation

FHL1

FHL2

FHL3

M2T2M3

eea db f gc

0.3

0.5

1.5

2.4

5020 100 150 200 250 290

a Outdoor unit

b Indoor unit

c Heat exchanger

d Pump

e Shut-off valve

f Collector (field supply)

g Overpressure bypass valve (delivered as accessory)

FHL1...3 Floor heating loop (field supply)

T1...3 Individual room thermostat (optional)

M1...3 Individual motorised valve to control loop FHL1...3 (field

supply)

Maximum water volume

Use the following graph to determine the maximum water volume for the calculated pre-pressure.

Installation

height

difference

(a)

≤200l >200l

>7m Do the following:

▪ Increase the pre-

pressure according to the required installation height difference. The prepressure should

Water volume

The expansion vessel of the indoor unit is too small for the installation. In this case, it is recommended to install an extra vessel outside the unit.

increase by 0.1 bar for each metre above 7 m.

▪ Check if the water

volume does NOT exceed the maximum allowed water volume.

(a) This is the height difference (m) between the highest point

of the water circuit and the indoor unit. If the indoor unit is at the highest point of the installation, the installation height is 0m.

Minimum flow rate

Check that the minimum flow rate in the installation is guaranteed in all conditions. This minimum flow rate is required during defrost/ backup heater operation (if applicable). For this purpose, use the overpressure bypass valve delivered with the unit, and respect the minimum water volume.

NOTICE

When circulation in each or certain space heating loops is controlled by remotely controlled valves, it is important that the minimum flow rate is guaranteed, even if all valves are closed. In case the minimum flow rate cannot be reached, a flow error 7H will be generated (no heating or operation).

Minimum required flow rate

12l/min

See the recommended procedure as described in "9.4 Checklist

during commissioning"on page75.

a Pre-pressure (bar)

b Maximum water volume (l)

6.4.4 Changing the pre-pressure of the expansion vessel

Example: Maximum water volume and expansion vessel prepressure

Installation

height

difference

(a)

≤200l >200l

≤7m No pre-pressure

adjustment is required.

Water volume

Do the following:

▪ Decrease the pre-

pressure according to the required installation height difference. The pre-pressure should decrease by 0.1 bar for each metre below 7 m.

NOTICE

Only a licensed installer may adjust the pre-pressure of the expansion vessel.

When changing the default pre-pressure of the expansion vessel (1bar) is required, take following guidelines into account:

▪ Only use dry nitrogen to set the expansion vessel pre-pressure.

▪ Inappropriate setting of the expansion vessel pre-pressure will

lead to malfunction of the system.

Changing the pre-pressure of the expansion vessel should be done by releasing or increasing nitrogen pressure through the Schrader valve of the expansion vessel.

▪ Check if the water

volume does NOT exceed the maximum allowed water volume.

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Installer reference guide

6 Preparation

WARNING

▪ All wiring MUST be performed by an authorised

electrician and MUST comply with the applicable legislation.

▪ Make electrical connections to the fixed wiring.

▪ All components procured on-site and all electrical

construction MUST comply with the applicable legislation.

WARNING

The backup heater MUST have a dedicated power supply and MUST be protected by the safety devices required by the applicable legislation.

a Schrader valve

6.4.5 To check the water volume: Examples

Example 1

The indoor unit is installed 5 m below the highest point in the water circuit. The total water volume in the water circuit is 100l.

No actions or adjustments are required.

Example 2

The indoor unit is installed at the highest point in the water circuit. The total water volume in the water circuit is 250l.

Actions:

▪ Because the total water volume (250l) is more than the default

water volume (200l), the pre-pressure must be decreased.

▪ The required pre-pressure is:

Pg = (0.3+(H/10))bar = (0.3+(0/10))bar=0.3bar.

▪ The corresponding maximum water volume at 0.3 bar is 290 l.

(See the graph in the chapter above).

▪ Because 250 l is lower than 290 l, the expansion vessel is

appropriate for the installation.

6.5 Preparing electrical wiring

6.5.1 About preparing electrical wiring

WARNING

The anti-legionella heater MUST have a dedicated power supply and MUST be protected by the safety devices required by the applicable legislation.

WARNING

ALWAYS use multicore cable for power supply cables.

6.5.2 About preferential kWh rate power supply

Electricity companies throughout the world work hard to provide reliable electric service at competitive prices and are often authorized to bill clients at benefit rates. E.g. time-of-use rates, seasonal rates, Wärmepumpentarif in Germany and Austria, ...

This equipment allows for connection to such preferential kWh rate power supply delivery systems.

Consult with the electricity company acting as provider at the site where this equipment is to be installed to know whether it is appropriate to connect the equipment in one of the preferential kWh rate power supply delivery systems available, if any.

When the equipment is connected to such preferential kWh rate power supply, the electricity company is allowed to:

▪ interrupt power supply to the equipment for certain periods of time;

▪ demand that the equipment only consumes a limited amount of

electricity during certain periods of time.

Whether the power supply is interrupted or not, the wiring to the unit is different.

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

WARNING

▪ If the power supply has a missing or wrong N-phase,

equipment might break down.

▪ Establish proper earthing. Do NOT earth the unit to a

utility pipe, surge absorber, or telephone earth. Incomplete earthing may cause electrical shock.

▪ Install the required fuses or circuit breakers.

▪ Secure the electrical wiring with cable ties so that the

cables do NOT come in contact with sharp edges or piping, particularly on the high-pressure side.

▪ Do NOT use taped wires, stranded conductor wires,

extension cords, or connections from a star system. They can cause overheating, electrical shock or fire.

▪ Do NOT install a phase advancing capacitor, because

this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents.

Installer reference guide

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Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

7 Installation

5 3

0 1

6.5.3 Overview of electrical connections except external actuators

Normal power

supply

Preferential kWh rate power supply

Power supply is NOT interrupted

Power supply is

interrupted

Item Description Wires Maximum

running

current

10 Heat pump convector 2 100mA

Field supplied components

11 Shut-off valve 2 100mA

12 Electricity meter 2 (per meter)

13 Domestic hot water

(b)

pump

14 Alarm output 2

15 Changeover to external

(b)

heat source control

16 Space cool/heat

(b)

operation control

(b)

(d)

During preferential kWh rate power supply activation, power supply is NOT interrupted. The outdoor unit is turned off by the control.

Remark: The electricity company must always allow the power consumption of the indoor unit.

a Normal power supply

b Preferential kWh rate power supply

1 Power supply for outdoor unit 2 Power supply and interconnection cable to indoor unit 3 Power supply for anti‑legionella heater 4 Preferential kWh rate power supply (voltage free contact) 5 Normal kWh rate power supply (to power the indoor unit

PCB in the event of power supply interruption of the preferential kWh rate power supply)

kWh rate power supply activation, power supply is interrupted immediately or after some time by the electricity company. In this case, the indoor unit must be powered by a separate normal power supply.

During preferential

17 Power consumption

digital inputs

2 (per input signal)

18 Safety thermostat 2

(a) Refer to name plate on outdoor unit. (b) Minimum cable section 0.75mm². (c) Cable section 2.5mm². (d) Cable section 0.75mm² till 1.25mm²; maximum length:

50m. Voltage-free contact shall ensure the minimum applicable load of 15VDC, 10mA.

(e) Cable section 0.75mm² till 1.25mm²; maximum length:

500m.

(f) Cable section 1.5mm².

NOTICE

More technical specifications of the different connections are indicated on the inside of the indoor unit.

7 Installation

7.1 Overview: Installation

This chapter describes what you have to do and know on-site to

6.5.4 Overview of electrical connections for external and internal actuators

Item Description Wires Maximum

Outdoor unit and indoor unit power supply

1 Power supply for

2+GND

outdoor unit

2 Power supply and

3 interconnection cable to indoor unit

3 Power supply for anti-

2+GND legionella heater

4 Preferential kWh rate

2 power supply (voltage free contact)

5 Normal kWh rate power

2 6.3A supply

Optional equipment

6 User interface used as

2 room thermostat

7 Room thermostat 3 or 4 100mA

8 Outdoor ambient

9 Indoor ambient

temperature sensor

running

current

(a)

(f)

(c)

(d)

(e)

(b)

install the system.

Typical workflow

Installation typically consists of the following stages:

1 Mounting the outdoor unit.

2 Mounting the indoor unit.

3 Connecting the refrigerant piping.

4 Checking the refrigerant piping.

5 Charging refrigerant.

6 Connecting the water piping.

7 Connecting the electrical wiring.

8 Finishing the outdoor installation.

9 Finishing the indoor installation.

INFORMATION

If you have limited installation space, do the following before installing the unit in its final position: "7.4.4 To

connect the drain hose to the drain" on page 34. It

requires to remove one or both side panels.

INFORMATION

Depending on the units and/or the installation conditions, it might be necessary to connect electrical wiring before you can charge refrigerant.

temperature sensor

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

7 Installation

5×

T25

2×

T25

4×

T25

4×

T25

7.2 Opening the units

7.2.1 About opening the units

At certain times, you have to open the unit. Example:

▪ When connecting the refrigerant piping

▪ When connecting the electrical wiring

▪ When maintaining or servicing the unit

DANGER: RISK OF ELECTROCUTION

Do NOT leave the unit unattended when the service cover is removed.

7.2.2 To open the outdoor unit

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING

See "7.5.8To connect the refrigerant piping to the outdoor unit" on

page 37 and "7.9.6 To connect the electrical wiring on the outdoor unit"on page42.

7.2.3 To open the indoor unit

1 Remove the top panel.

3 If necessary, remove the front plate. This is, for example,

necessary in the following cases:

▪ "7.2.5 To lower the switch box on the indoor unit" on

page31

▪ "7.4.4To connect the drain hose to the drain"on page34 ▪ When you need access to the high voltage switch box

7.2.4 To open the switch box cover of the indoor unit

2 Remove the user interface panel. Open the hinges at the top

Installer reference guide

and slide the top panel upwards.

NOTICE

If you remove the user interface panel, also disconnect the cables from the back of the panel to prevent damage.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

7 Installation

2×

T25

(mm)

0 mm

<150

>300

300

600

>100

7.2.5 To lower the switch box on the indoor unit

During the installation, you will need access to the inside of the indoor unit. To have easier front access, put the switch box lower on the unit as follows:

Prerequisite: The user interface panel and front panel have been removed.

1 Remove the top panel that keeps the switch box into place at

the top of the unit.

2 Tilt the switch box to the front and lift it out of its hinges.

3 Place the switch box lower on the unit. Use the 2 hinges located

lower on the unit.

7.3.2 Precautions when mounting the outdoor unit

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

7.3.3 To provide the installation structure

Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise.

Fix the unit securely by means of foundation bolts in accordance with the foundation drawing.

This topic shows different installation structures. For all, use 4 sets of M8 or M10 anchor bolts, nuts and washers. In any case, provide at least 300 mm of free space below the unit. Additionally, make sure the unit is positioned at least 100 mm above the maximum expected level of snow.

INFORMATION

The maximum height of the upper protruding part of the bolts is 15mm.

INFORMATION

If you install the U-beams in combination with the low sound cover (EKLN08A1), different installation instructions apply for the U-beams. See the installation manual of the low sound cover.

7.3 Mounting the outdoor unit

7.3.1 About mounting the outdoor unit

When

You have to mount the outdoor and indoor unit before you can connect the refrigerant and water piping.

Typical workflow

Mounting the outdoor unit typically consists of the following stages:

1 Providing the installation structure.

2 Installing the outdoor unit.

3 Providing drainage.

4 Preventing the unit from falling over.

5 Protecting the unit against snow and wind by installing a snow

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

cover and baffle plates. See "Preparing installation site" in

"6Preparation"on page21.

a Low sound cover

b Bottom parts of the low sound cover

c U-beams

Option 1: On mounting feet "flexi-foot with strut"

a Maximum snowfall height

Installer reference guide

7 Installation

0 mm

300

600

<150

(mm)

>300

100

0 mm

>250

>300

>250

(mm)

4×

Option 2: On plastic mounting feet

In this case, you can use the bolts, nuts, washers and spring washers delivered with the unit as accessories.

Option 3: On a pedestal with the EKFT008D option kit

The EKFT008D option kit is recommended in areas with heavy snowfall.

a Maximum snowfall height b EKFT008D option kit

Option 4: On brackets to the wall with the EKFT008D option kit

The EKFT008D option kit is recommended in areas with heavy snowfall.

Installer reference guide

a Maximum snowfall height b EKFT008D option kit c Anti-vibration rubber (field supply)

7.3.4 To install the outdoor unit

CAUTION

Do NOT remove the protective cardboard before the unit is installed properly.

1 Lift the outdoor unit as described in "3.2.2 To handle the

outdoor unit"on page7.

2 Install the outdoor unit as follows:

▪ (1) Put the unit into position (using the sling to the left and

the handle to the right). ▪ (2) Remove the sling (by pulling 1 side of the sling). ▪ (3) Fix the unit.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

7 Installation

2×

a a

355 mm

600 mm

a Air outlet

NOTICE

Properly align the unit. Make sure the backside of the unit does NOT protrude.

3 Remove the protective cardboard and instruction sheet.

a Protective cardboard

b Instruction sheet

7.3.5 To provide drainage

▪ Make sure that condensation water can be evacuated properly.

▪ Install the unit on a base to make sure that there is proper

drainage in order to avoid ice accumulation.

▪ Prepare a water drainage channel around the foundation to drain

waste water away from the unit.

▪ Avoid drain water flowing over the footpath, so that it does NOT

become slippery in case of ambient freezing temperatures.

▪ If you install the unit on a frame, install a waterproof plate within

150 mm of the bottom side of the unit in order to prevent water from getting into the unit and to avoid drain water dripping (see the following figure).

a Drain pan b U-beams c Drain hole insulation

▪ Drain pan heater. You can use the drain pan heater option

(EKDPH008CA) to prevent freezing-up of the drain pan. For the installation instructions, see the installation manual of the drain pan heater.

▪ Non-heated drain tube. When using the drain pan heater without

drain tube or with a non-heated drain tube, remove the drain hole insulation (Item c on the illustration).

NOTICE

If the drain holes of the outdoor unit are blocked up, provide space of at least 300mm below the outdoor unit.

▪ Drain pan. You can use the drain pan option (EKDP008D) to

gather the drain water. For the complete installation instructions, see the installation manual of the drain pan. In short, the drain pan must be installed level (with a tolerance of 1° at all sides) and as follows:

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

7 Installation

d c

≤1°

0°

1° 1°

INFORMATION

If you install the drain pan kit (with or without drain pan heater) in combination with the low sound cover (EKLN08A1), different installation instructions apply for the drain pan kit. See the installation manual of the low sound cover.

a Low sound cover

b Bottom parts of the low sound cover

c Drain pan kit

d Drain pan heater

7.3.6 To prevent the outdoor unit from falling over

In case the unit is installed in places where strong wind can tilt the unit, take following measure:

1 Prepare 2 cables as indicated in the following illustration (field

supply).

2 Place the 2 cables over the outdoor unit.

3 Insert a rubber sheet between the cables and the outdoor unit

to prevent the cables from scratching the paint (field supply).

4 Attach the ends of the cables and tighten them.

7.4 Mounting the indoor unit

7.4.1 About mounting the indoor unit

When

You have to mount the outdoor and indoor unit before you can connect the refrigerant and water piping.

Typical workflow

Mounting the indoor unit typically consists of the following stages:

1 Installing the indoor unit.

7.4.2 Precautions when mounting the indoor unit

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

7.4.3 To install the indoor unit

1 Lift the indoor unit from the pallet and place it on the floor. Also

see "3.3.3To handle the indoor unit"on page8.

2 Connect the drain hose to the drain. See "7.4.4To connect the

drain hose to the drain"on page34.

3 Slide the indoor unit into position.

4 Adjust the height of the leveling feet to compensate for floor

irregularities. The maximum allowed deviation is 1°.

NOTICE

Do NOT tilt the unit forwards:

7.4.4 To connect the drain hose to the drain

Installer reference guide

Water coming from the pressure relief valve is collected in the drain pan. The drain pan is connected to a drain hose inside the unit. You must connect the drain hose to an appropriate drain according to the applicable legislation. You can route the drain hose through the left or right side panel.

Prerequisite: The user interface panel and front panel have been removed.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

7 Installation

3×

T25

3×

T25

1 Remove one of the side panels.

2 Cut out the rubber grommet.

3 Pull the drain hose through the hole.

4 Reattach the side panel. Ensure the water can flow through the

drain tube.

It is recommended to use a tundish to collect the water.

Option 1: Through the left side panel

Option 2: Through the right side panel

▪ Keeping in mind the guidelines for:

▪ Pipe bending

▪ Flaring pipe ends

▪ Brazing

▪ Using the stop valves

7.5.2 Precautions when connecting the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

DANGER: RISK OF BURNING

CAUTION

▪ Do NOT use mineral oil on flared part.

▪ Do NOT reuse piping from previous installations.

▪ NEVER install a drier to this R32 unit to guarantee its

lifetime. The drying material may dissolve and damage the system.

NOTICE

Take the following precautions on refrigerant piping into account:

▪ Avoid anything but the designated refrigerant to get

mixed into the refrigerant cycle (e.g. air).

▪ Only use R32 when adding refrigerant.

▪ Only use installation tools (e.g. manifold gauge set) that

are exclusively used for R32 installations to withstand the pressure and to prevent foreign materials (e.g. mineral oils and moisture) from mixing into the system.

▪ Install the piping so that the flare is NOT subjected to

mechanical stress.

▪ Protect the piping as described in the following table to

prevent dirt, liquid or dust from entering the piping.

▪ Use caution when passing copper tubes through walls

(see figure below).

7.5 Connecting the refrigerant piping

7.5.1 About connecting the refrigerant piping

Before connecting the refrigerant piping

Make sure the outdoor and indoor unit are mounted.

Typical workflow

Connecting the refrigerant piping involves:

▪ Connecting the refrigerant piping to the outdoor unit

▪ Connecting the refrigerant piping to the indoor unit

▪ Insulating the refrigerant piping

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Outdoor unit >1month Pinch the pipe

Indoor unit Regardless of the

Unit Installation period Protection method

<1month Pinch or tape the pipe

period

INFORMATION

Do NOT open the refrigerant stop valve before checking the refrigerant piping. When you need to charge additional refrigerant it is recommended to open the refrigerant stop valve after charging.

Installer reference guide

7 Installation

a b

R=0.4~0.8

45°

±2

90°

±2

a b

a b c d e

c d

7.5.3 Guidelines when connecting the refrigerant piping

Take the following guidelines into account when connecting pipes:

▪ Coat the flare inner surface with ether oil or ester oil when

connecting a flare nut. Tighten 3 or 4 turns by hand, before tightening firmly.

▪ ALWAYS use 2 wrenches together when loosening a flare nut.

▪ ALWAYS use a spanner and torque wrench together to tighten the

flare nut when connecting the piping. This to prevent nut cracking and leaks.

a Torque wrench b Spanner c Piping union d Flare nut

Piping size

(mm)

Tightening

torque (N•m)

Flare

dimensions (A)

Flare shape

(mm)

Ø6.4 15~17 8.7~9.1

Ø15.9 63~75 19.3~19.7

7.5.4 Pipe bending guidelines

Use a pipe bender for bending. All pipe bends should be as gentle as possible (bending radius should be 30~40mm or larger).

7.5.5 To flare the pipe end

CAUTION

▪ Incomplete flaring may cause refrigerant gas leakage.

▪ Do NOT re-use flares. Use new flares to prevent

refrigerant gas leakage.

▪ Use flare nuts that are included with the unit. Using

different flare nuts may cause refrigerant gas leakage.

1 Cut the pipe end with a pipe cutter.

2 Remove burrs with the cut surface facing down so that the

chips do NOT enter the pipe.

Flare tool for R32

(clutch type)

Conventional flare tool

Clutch type

(Ridgid-type)

Wing nut type

(Imperial-type)

A 0~0.5mm 1.0~1.5mm 1.5~2.0mm

5 Check that the flaring is properly made.

a Flare’s inner surface MUST be flawless. b The pipe end MUST be evenly flared in a perfect circle. c Make sure the flare nut is fitted.

7.5.6 To braze the pipe end

The indoor unit and outdoor unit have flare connections. Connect both ends without brazing. If brazing should be needed, take the following into account:

▪ When brazing, blow through with nitrogen to prevent creation of

large quantities of oxidised film on the inside of the piping. This film adversely affects valves and compressors in the refrigerating system and prevents proper operation.

▪ Set the nitrogen pressure to 20kPa (0.2bar) (just enough so it

can be felt on the skin) with a pressure-reducing valve.

a Refrigerant piping b Part to be brazed c Taping d Manual valve e Pressure-reducing valve

f Nitrogen

▪ Do NOT use anti-oxidants when brazing pipe joints.

Residue can clog pipes and break equipment.

▪ Do NOT use flux when brazing copper-to-copper refrigerant

piping. Use phosphor copper brazing filler alloy (BCuP), which does not require flux. Flux has an extremely harmful influence on refrigerant piping systems. For instance, if chlorine based flux is used, it will cause pipe corrosion or, in particular, if the flux contains fluorine, it will deteriorate the refrigerant oil.

7.5.7 Using the stop valve and service port

To handle the stop valve

Take the following guidelines into account:

▪ The stop valves are factory closed.

▪ The following figure shows the stop valve parts required when

handling the valve.

a Cut exactly at right angles. b Remove burrs.

3 Remove the flare nut from the stop valve and put the flare nut

on the pipe.

4 Flare the pipe. Set exactly at the position as shown in the

following figure.

Installer reference guide

a Service port and service port cap b Valve stem c Field piping connection d Stem cap

▪ Keep both stop valves open during operation.

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7 Installation

1×

▪ Do NOT apply excessive force to the valve stem. Doing so may

break the valve body.

▪ ALWAYS make sure to secure the stop valve with a spanner, then

loosen or tighten the flare nut with a torque wrench. Do NOT place the spanner on the stem cap, as this could cause a refrigerant leak.

a Spanner

b Torque wrench

▪ When it is expected that the operating pressure will be low (e.g.

when cooling will be performed while the outside air temperature is low), sufficiently seal the flare nut in the stop valve on the gas line with silicon sealant to prevent freezing.

Silicon sealant; make sure there is no gap.

To open/close the stop valve

1 Remove the stop valve cover.

2 Insert a hexagon wrench (liquid side: 4mm, gas side: 4mm)

into the valve stem and turn the valve stem:

Item Tightening torque (N∙m)

Service port cap 11.5~13.9

7.5.8 To connect the refrigerant piping to the outdoor unit

1 Connect the liquid refrigerant connection from the indoor unit to

the liquid stop valve of the outdoor unit.

a Liquid stop valve b Gas stop valve c Service port

2 Connect the gas refrigerant connection from the indoor unit to

the gas stop valve of the outdoor unit.

NOTICE

It is recommended that the refrigerant piping between

Counterclockwise to open. Clockwise to close.

3 When the stop valve CANNOT be turned any further, stop

turning.

4 Install the stop valve cover.

Result: The valve is now open/closed.

indoor and outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape.

7.5.9 To connect the refrigerant piping to the indoor unit

1 Connect the liquid stop valve from the outdoor unit to the

refrigerant liquid connection of the indoor unit.

To handle the stem cap

▪ The stem cap is sealed where indicated with the arrow. Do NOT

damage it.

▪ After handling the stop valve, tighten the stem cap, and check for

refrigerant leaks.

Item Tightening torque (N∙m)

Stem cap, liquid side 13.5~16.5

Stem cap, gas side 22.5~27.5

2 Connect the gas stop valve from the outdoor unit to the

To handle the service cap

▪ ALWAYS use a charge hose equipped with a valve depressor pin,

since the service port is a Schrader type valve.

▪ After handling the service port, tighten the service port cap, and

check for refrigerant leaks.

a Refrigerant liquid connection b Refrigerant gas connection

refrigerant gas connection of the indoor unit.

NOTICE

It is recommended that the refrigerant piping between indoor and outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

7 Installation

a d

g h i

INFORMATION

When the indoor unit is installed in a place with limited space, an optional pipe bend (EKHVTC) kit can be installed to facilitate the connection to the refrigerant gas and liquid connections of the indoor unit. For installation instructions, see the instruction sheet of the pipe bend kit.

7.6 Checking the refrigerant piping

7.6.1 About checking the refrigerant piping

The outdoor unit's internal refrigerant piping has been factory tested for leaks. You only have to check the outdoor unit's external refrigerant piping.

Before checking the refrigerant piping

Make sure the refrigerant piping is connected between the outdoor unit and the indoor unit.

Typical workflow

Checking the refrigerant piping typically consists of the following stages:

1 Checking for leaks in the refrigerant piping.

2 Performing vacuum drying to remove all moisture, air or

nitrogen from the refrigerant piping.

If there is a possibility of moisture being present in the refrigerant piping (for example, water may have entered the piping), first carry out the vacuum drying procedure below until all moisture has been removed.

NOTICE

Make sure to use a recommended bubble test solution from your wholesaler. Do not use soap water, which may cause cracking of flare nuts (soap water may contain salt, which absorbs moisture that will freeze when the piping gets cold), and/or lead to corrosion of flared joints (soap water may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare).

1 Charge the system with nitrogen gas up to a gauge pressure of

at least 200 kPa (2 bar). It is recommended to pressurize to 3000kPa (30bar) in order to detect small leaks.

2 Check for leaks by applying the bubble test solution to all

connections.

3 Discharge all nitrogen gas.

7.6.4 To perform vacuum drying

Connect the vacuum pump and manifold as follows:

7.6.2 Precautions when checking the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

NOTICE

Use a 2-stage vacuum pump with a non-return valve that can evacuate to a gauge pressure of −⁠100.7 kPa (−⁠1.007 bar)(5 Torr absolute). Make sure the pump oil does not flow oppositely into the system while the pump is not working.

NOTICE

Use this vacuum pump for R32 exclusively. Using the same pump for other refrigerants may damage the pump and the unit.

NOTICE

▪ Connect the vacuum pump to the service port of the

gas stop valve.

▪ Make sure that the gas stop valve and liquid stop valve

are firmly closed before performing the leak test or vacuum drying.

a Pressure meter b Gauge manifold c Low-pressure valve (Lo) d High-pressure valve (Hi) e Charging hoses

f Vacuum pump g Service port h Valve lids

i Gas stop valve j Liquid stop valve

1 Vacuum the system until the pressure on the manifold indicates

−0.1MPa (−1bar).

2 Leave as is for 4-5minutes and check the pressure:

If the pressure… Then…

Does not change There is no moisture in the

system. This procedure is finished.

Increases There is moisture in the

system. Go to the next step.

3 Vacuum the system for at least 2 hours to a manifold pressure

of −0.1MPa (−1bar).

4 After turning the pump OFF, check the pressure for at least

1hour.

5 If you do NOT reach the target vacuum or CANNOT maintain

the vacuum for 1hour, do the following:

▪ Check for leaks again. ▪ Perform vacuum drying again.

7.6.3 To check for leaks

NOTICE

Do NOT exceed the unit's maximum working pressure (see "PS High" on the unit name plate).

Installer reference guide

NOTICE

Make sure to open the stop valves after installing the refrigerant piping and performing vacuum drying. Running the system with the stop valves closed may break the compressor.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

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7 Installation

INFORMATION

After opening the stop valve, it is possible that the pressure in the refrigerant piping does NOT increase. This might be caused by e.g. the closed state of the expansion valve in the outdoor unit circuit, but does NOT present any problem for correct operation of the unit.

7.7 Charging refrigerant

7.7.1 About charging refrigerant

The outdoor unit is factory charged with refrigerant, but in some cases the following might be necessary:

What When

Charging additional refrigerant When the total liquid piping

length is more than specified (see later).

Completely recharging refrigerant Example:

▪ When relocating the system.

▪ After a leak.

Charging additional refrigerant

Before charging additional refrigerant, make sure the outdoor unit's

external refrigerant piping is checked (leak test, vacuum drying).

INFORMATION

Depending on the units and/or the installation conditions, it might be necessary to connect electrical wiring before you can charge refrigerant.

Typical workflow – Charging additional refrigerant typically consists of the following stages:

1 Determining if and how much you have to charge additionally.

2 If necessary, charging additional refrigerant.

3 Filling in the fluorinated greenhouse gases label, and fixing it to

the inside of the outdoor unit.

7.7.2 Precautions when charging refrigerant

INFORMATION

Also read the precautions and requirements in the

following chapters:

▪ General safety precautions

▪ Preparation

7.7.3 To determine the additional refrigerant amount

WARNING

If the total refrigerant charge in the system is ≥1.84 kg (i.e. if the piping length is ≥27 m), you need to comply

with the minimum floor area requirements for the indoor unit. For more information, see "6.2.3 Installation site

requirements of the indoor unit"on page23.

If the total liquid

piping length is…

≤10m Do NOT add additional refrigerant.

>10m R=(total length (m) of liquid

piping⁠–⁠10m)×0.020

R=Additional charge (kg) (rounded in units of 0.01kg)

INFORMATION

Piping length is the one-way length of liquid piping.

Then…

7.7.4 To determine the complete recharge amount

INFORMATION

If a complete recharge is necessary, the total refrigerant charge is: the factory refrigerant charge (see unit name plate) + the determined additional amount.

Completely recharging refrigerant

Before completely recharging refrigerant, make sure the following is done:

1 All refrigerant is recovered from the system.

2 The outdoor unit's external refrigerant piping is checked (leak

test, vacuum drying).

3 Vacuum drying on the outdoor unit's internal refrigerant piping is

performed.

NOTICE

Before completely recharging, perform vacuum drying on the outdoor unit's internal refrigerant piping as well.

Typical workflow – Completely recharging refrigerant typically consists of the following stages:

1 Determining how much refrigerant to charge.

2 Charging refrigerant.

3 Filling in the fluorinated greenhouse gases label, and fixing it to

the inside of the outdoor unit.

7.7.5 To charge additional refrigerant

WARNING

▪ Only use R32 as refrigerant. Other substances may

cause explosions and accidents.

▪ R32 contains fluorinated greenhouse gases. Its global

warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere.

▪ When charging refrigerant, ALWAYS use protective

gloves and safety glasses.

CAUTION

To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant.

Prerequisite: Before charging refrigerant, make sure the refrigerant piping is connected and checked (leak test and vacuum drying).

1 Connect the refrigerant cylinder to the service port.

2 Charge the additional refrigerant amount.

3 Open the gas stop valve.

If pump down is needed in case of dismantling or relocating the system, see "13.2To pump down"on page86 for more details.

7.7.6 To fix the fluorinated greenhouse gases label

1 Fill in the label as follows:

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

7 Installation

Contains fluorinated greenhouse gases

tCO2eq

GWP × kg

1000

= =

GWP: XXX

RXXX

d e

c d a b

a If a multilingual fluorinated greenhouse gases label is

delivered with the unit (see accessories), peel off the applicable language and stick it on top of a.

b Factory refrigerant charge: see unit name plate c Additional refrigerant amount charged d Total refrigerant charge e Greenhouse gas emissions of the total refrigerant charge

expressed as tonnes CO2 equivalent

f GWP = Global warming potential

NOTICE

In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO equivalent) is used to determine the maintenance intervals. Follow the applicable legislation.

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000

2 Fix the label on the inside of the outdoor unit near the gas and

liquid stop valves.

7.8 Connecting the water piping

7.8.1 About connecting the water piping

Before connecting the water piping

Make sure the outdoor and indoor unit are mounted. If applicable, also make sure the backup heater is mounted.

Typical workflow

Connecting the water piping typically consists of the following stages:

1 Connecting the water piping to the indoor unit.

2 Connecting the water piping to the backup heater (if applicable).

3 Connecting the recirculation piping.

4 Connecting the drain hose to the drain.

5 Filling the water circuit.

6 Filling the domestic hot water tank.

7 Insulating the water piping.

7.8.2 Precautions when connecting the water piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

To facilitate service and maintenance, 2 shut-off valves and 1 overpressure bypass valve are provided. Mount the shut-off valves on the space heating water inlet and space heating water outlet. To ensure the minimum flow rate (and prevent overpressure), install the overpressure bypass valve on the space heating water outlet.

1 Install the shut-off valves on the space heating water pipes.

2 Screw the indoor unit nuts on the shut-off valve.

3 Connect the domestic hot water in and out pipes to the indoor

unit.

a Space heating water out b Space heating water in c Domestic hot water out d Domestic cold water in (cold water supply)

NOTICE

It is recommended to install shut-off valves to domestic cold water in and domestic hot water out connections. These shut-off valves are field supplied.

NOTICE

Overpressure bypass valve (delivered as accessory). We

recommend to install the overpressure bypass valve in the space heating water circuit.

▪ Mind the minimum water volume when choosing the

installation location of the overpressure bypass valve (at the indoor unit, or at the collector). See "6.4.3 To

check the water volume and flow rate"on page26.

▪ Mind the minimum flow rate when adjusting the

overpressure bypass valve setting. See "6.4.3 To

check the water volume and flow rate"on page26 and "9.4.1To check the minimum flow rate"on page76.

NOTICE

Install air purge valves at all local high points.

NOTICE

A pressure relief valve (field supply) with an opening pressure of maximum 10 bar must be installed on the domestic cold water inlet connection in accordance with the applicable legislation.

7.8.3 To connect the water piping

NOTICE

Do NOT use excessive force when connecting the piping. Deformation of the piping can cause malfunctioning of the unit.

Installer reference guide

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7 Installation

NOTICE

▪ A drain device and pressure relief device must be

installed on the cold water inlet connection of the domestic hot water cylinder.

▪ To avoid back siphonage, it is recommended to install a

non-return valve on the water inlet of the domestic hot water tank in accordance with the applicable legislation.

▪ It is recommended to install the pressure relief valve on

a higher position than the top of the domestic hot water tank. Heating of the domestic hot water tank causes water to expand and without pressure relief valve the water pressure inside the tank can rise above the tank design pressure. Also the field installation (piping, tapping points, etc.) connected to the tank is subjected to this high pressure. To prevent this, a pressure relief valve needs to be installed. The overpressure prevention depends on the correct operation of the field installed pressure relief valve. If this is NOT working correctly, overpressure will deform the tank and water leakage may occur. To confirm good operation, regular maintenance is required.

7.8.4 To connect the recirculation piping

Prerequisite: Only required if you need recirculation in your system.

1 Remove the top panel from the unit, see "7.2.3 To open the

indoor unit"on page30.

2 Cut out the rubber grommet on top of the unit, and remove the

stop. The recirculation connector is placed below the hole.

3 Route the recirculation piping through the grommet and connect

it to the recirculation connector.

4 Reattach the top panel.

7.8.5 To fill the water circuit

To fill the water circuit, use a field supply filling kit. Make sure you comply with the applicable legislation.

INFORMATION

Make sure both air purge valves (one on the magnetic filter, and one between the 3‑way valve and flow sensor) are open.

7.8.6 To fill the domestic hot water tank

1 Open every hot water tap in turn to purge air from the system

pipe work.

2 Open the cold water supply valve.

3 Close all water taps after all air is purged.

4 Check for water leaks.

5 Manually operate the field-installed pressure relief valve to

ensure a free water flow through the discharge pipe.

NOTICE

To operate the system, the domestic hot water tank needs to be filled completely. Turning on the system when the tank is not full can damage the integrated anti-legionella heater and cause electrical errors.

7.8.7 To insulate the water piping

The piping in the complete water circuit MUST be insulated to prevent condensation during defrost operation and reduction of the heating capacity.

7.9 Connecting the electrical wiring

7.9.1 About connecting the electrical wiring

Before connecting the electrical wiring

Make sure:

▪ The refrigerant piping is connected and checked

▪ The water piping is connected

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

1 Making sure the power supply system complies with the

electrical specifications of the heat pump.

2 Connecting the electrical wiring to the outdoor unit.

3 Connecting the electrical wiring to the indoor unit.

4 Connecting the main power supply.

5 Connecting the shut-off valves.

6 Connecting the electrical meters.

7 Connecting the domestic hot water pump.

8 Connecting the alarm output.

9 Connecting the space heating ON/OFF output.

10 Connecting the changeover to an external heat source.

11 Connecting the power consumption digital inputs.

12 Connecting the safety thermostat.

13 Connecting the anti-legionella heater power supply.

7.9.2 About electrical compliance

Only for ERGA04~08DAV3 (not for ERGA04~08DAV3A)

Equipment complying with EN/IEC 61000‑3‑12 (European/ International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16A and ≤75A per phase.).

7.9.3 Precautions when connecting the electrical wiring

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

DANGER: RISK OF ELECTROCUTION

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

WARNING

ALWAYS use multicore cable for power supply cables.

Installer reference guide

7 Installation

b a

AA´

A´

c b ba c

2×

a b

1N~ 50 Hz

220-240 V

1 2 3

L N

L N PWR

12 3

3×

7.9.4 Guidelines when connecting the electrical wiring

Keep the following in mind:

▪ If stranded conductor wires are used, install a round crimp-style

terminal on the end of the wire. Place the round crimp-style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool.

a Stranded conductor wire b Round crimp-style terminal

▪ Use the following methods for installing wires:

Wire type Installation method

Single-core wire

a Curled single-core wire

b Screw

c Flat washer

Stranded conductor wire with round crimp-style terminal

(a) MCA=Minimum circuit ampacity. Stated values are

maximum values (see electrical data of combination with indoor units for exact values).

7.9.6 To connect the electrical wiring on the outdoor unit

1 Remove the switch box cover.

2 Strip insulation (20mm) from the wires.

a Strip wire end to this point b Excessive strip length may cause electrical shock or

leakage.

3 Connect the interconnection cable and power supply as follows.

Ensure stress relief by using the wire clamp.

Tightening torques

M4 (X1M) 1.2~1.5

M4 (earth)

7.9.5 Specifications of standard wiring components

Component ERGA04+06D

Power supply cable

Interconnection cable

Recommended field fuse

Earth leakage circuit breaker

Installer reference guide

MCA

Voltage 230V

Phase 1~

Frequen cy

Wire sizes

a Terminal

b Screw

c Flat washer

O Allowed

X NOT allowed

Item Tightening torque (N•m)

ERGA08DAV3 ERGA04~08D

(a)

19.9A 24.0A 15.9A

AV3

AV3A

50Hz

Must comply with applicable legislation

Minimum cable section of 1.5mm² and

applicable for 230V

20A 25A 16A

Must comply with applicable legislation

a Interconnection cable b Power supply cable c Fuse d Earth leakage circuit breaker

a Wire clamp

4 Reattach the switch box cover.

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7 Installation

1×

b+c ad

4×

b+c

5 Optional: Attach the wire clamp (accessory) to the screw of the

refrigerant piping cover, and fix the cables to it with a cable tie.

6 Connect an earth leakage circuit breaker and fuse to the power

supply line.

7.9.7 To connect the electrical wiring on the indoor unit

1 To open the indoor unit, see "7.2.3To open the indoor unit"on

page30 and "7.2.4To open the switch box cover of the indoor unit"on page30.

2 The wiring enters the unit from the top:

a, b, c Field wiring (see table below)

d Factory-mounted cable for power supply of anti-legionella

heater

3 Routing of the wiring inside the unit should be as follows. Fix

the cable to the cable rail using cable ties:

WARNING

Make sure that the electrical wiring does NOT touch the refrigerant gas pipe, which can be very hot.

a Refrigerant gas pipe

Routing Possible cables (depending on unit type

Low voltage

High voltage power supply

High voltage control signal

High voltage power supply (factorymounted cable)

and installed options)

▪ Preferential power supply contact

▪ User interface used as room thermostat

(option)

▪ Power consumption digital inputs (field

supply)

▪ Outdoor ambient temperature sensor

(option)

▪ Indoor ambient temperature sensor

(option)

▪ Electrical meters (field supply)

▪ Safety thermostat (field supply)

▪ Backup heater thermistor (backup heater

option)

▪ Interconnection cable

▪ Normal kWh rate power supply

▪ Preferential kWh rate power supply

▪ Heat pump convector (option)

▪ Room thermostat (option)

▪ Shut-off valve (field supply)

▪ Domestic hot water pump (field supply)

▪ Alarm output

▪ Changeover to external heat source

control

▪ Space heating operation control

▪ Backup heater thermal protector + backup

heater connection (backup heater option)

▪ Power supply for anti-legionella heater

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

CAUTION

Do NOT push or place redundant cable length in the unit.

4 Seal the low voltage wiring intake using the sealing tape

(delivered as accessory).

Without low voltage cables With low voltage cables

Installer reference guide

7 Installation

X1M

X2M

X5M

X11YB

X1A

X11Y

X11YA

1 2 3

X1M

X2M

X5M

X11Y

X11YB

X1A

1 2 3

1 N L

N L

2 3

S1S

a b c

X11YA

51 2 3 6

910

X1M

X2M

X1M

X2M

NO NC

M2S M2S

2128

21 29

X1M

X2M

X5M

S3S S2S

3456

X1M

X2M

X5M

M2P

1 2

7.9.8 To connect the main power supply

1 Connect the main power supply.

In case of normal kWh rate power supply

Legend: see illustration below.

In case of preferential kWh rate power supply

Connect X11Y to X11YB.

7.9.9 To connect the shut-off valve

1 Connect the valve control cable to the appropriate terminals as

shown in the illustration below.

NOTICE

Wiring is different for a NC (normal closed) valve and a NO (normal open) valve.

2 Fix the cable with cable ties to the cable tie mountings.

7.9.10 To connect the electrical meters

INFORMATION

In case of an electrical meter with transistor output, check the polarity. The positive polarity MUST be connected to X5M/6 and X5M/4; the negative polarity to X5M/5 and X5M/3.

1 Connect the electrical meters cable to the appropriate terminals

as shown in the illustration below.

a Interconnection cable (=main power supply) b Normal kWh rate power supply c Preferential power supply contact

2 Fix the cables with cable ties to the cable tie mountings.

INFORMATION

In case of preferential kWh rate power supply, connect X11Y to X11YB. The necessity of separate normal kWh rate power supply to indoor unit (b) X2M/5+6 depends on the type of preferential kWh rate power supply.

Separate connection to the indoor unit is required:

▪ if preferential kWh rate power supply is interrupted

when active, OR

▪ if no power consumption of the indoor unit is allowed at

the preferential kWh rate power supply when active.

INFORMATION

The preferential kWh rate power supply contact is connected to the same terminals (X5M/9+10) as the safety thermostat. It is only possible for the system to have EITHER preferential kWh rate power supply OR a safety thermostat.

2 Fix the cable with cable ties to the cable tie mountings.

7.9.11 To connect the domestic hot water pump

1 Connect the domestic hot water pump cable to the appropriate

terminals as shown in the illustration below.

2 Fix the cable with cable ties to the cable tie mountings.

7.9.12 To connect the alarm output

1 Connect the alarm output cable to the appropriate terminals as

shown in the illustration below.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

X1M

X2M

A4P

X5M

X1M

YC Y1 Y2 Y3 Y4

7 9

a Installation of EKRP1HB is required.

X1M

X2M

A4P

X5M

X1M

YC Y1 Y2 Y3 Y4

YC Y2

7 9

X1M

X2M

A4P

X5M

X1M

YC Y1 Y2 Y3 Y4

X2 X1

X2M

X4 X3

N L

X1M

X2M

A8P

X5M

1 2 3 4 5

X801M

S6S

S7S

S8S

S9S

X1M

X2M

X5M

910

2 Fix the cable with cable ties to the cable tie mountings.

7.9.13 To connect the space heating ON/OFF output

1 Connect the space heating ON/OFF output cable to the

appropriate terminals as shown in the illustration below.

7 Installation

a Installation of EKRP1HB is required.

2 Fix the cable with cable ties to the cable tie mountings.

7.9.15 To connect the power consumption digital inputs

1 Connect the power consumption digital inputs cable to the

appropriate terminals as shown in the illustration below.

a Installation of EKRP1HB is required.

2 Fix the cable with cable ties to the cable tie mountings.

7.9.14 To connect the changeover to external heat source

1 Connect the changeover to external heat source cable to the

appropriate terminals as shown in the illustration below.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

a Installation of EKRP1AHTA is required.

2 Fix the cable with cable ties to the cable tie mountings.

7.9.16 To connect the safety thermostat (normal closed contact)

1 Connect the safety thermostat (normal closed) cable to the

appropriate terminals as shown in the illustration below.

2 Fix the cable with cable ties to the cable tie mountings.

Installer reference guide

7 Installation

X8M

F2B

Q1DI

1N~, 50 Hz 230 V AC

SWB 2

Q1DI

234

F2B

I I

L N

X8M

1 2

K3M

3 4

NOTICE

Make sure to select and install the safety thermostat according to the applicable legislation.

In any case, to prevent unnecessary tripping of the safety thermostat, it is recommended that …

▪ … the safety thermostat is automatically resettable.

▪ … the safety thermostat has a maximum temperature

variation rate of 2°C/min.

▪ … there is a minimum distance of 2 m between the

safety thermostat and the 3‑way valve.

INFORMATION

After it is installed, do NOT forget to configure the safety thermostat. Without configuration, the indoor unit will ignore the safety thermostat contact.

INFORMATION

7.9.17 To connect the anti-legionella heater power supply

WARNING

The anti-legionella heater MUST have a dedicated power supply and MUST be protected by the safety devices required by the applicable legislation.

F2B Overcurrent fuse (field supply). Recommended: 2‑pole;

20A; curve 400V; tripping class C.

K3M Contactor (in the lower switch box)

Q1DI Earth leakage circuit breaker (field supply)

SWB 2 Lower switch box

X8M Terminal (field supply)

7.10 Finishing the outdoor unit installation

7.10.1 To finish the outdoor unit installation

1 Insulate and fix the refrigerant piping and interconnection cable

as follows:

CAUTION

To guarantee the unit is completely earthed, always connect the anti-legionella heater power supply and the earth cable.

Make sure that the power supply is in accordance with the antilegionella heater capacity, as listed in the table below.

Anti-legionella

heater capacity

Power supply Maximum running

current

2.4kW 1N~230V 11A

Connect the anti-legionella heater power supply cable as follows:

a Factory-mounted cable connected to the anti-legionella

heater contactor inside the lower switch box (K3M)

b Field wiring (see below)

a Gas pipe b Gas pipe insulation c Interconnection cable d Liquid pipe e Liquid pipe insulation

f Finishing tape

2 Install the service cover.

7.11 Finishing the indoor unit installation

7.11.1 To close the indoor unit

1 Close the cover of the switch box.

2 Put the switch box back into place.

3 Reinstall the top panel.

4 Reinstall the side panels.

5 Reinstall the front panel.

6 Reconnect the cables to the user interface panel.

7 Reinstall the user interface panel.

NOTICE

When closing the indoor unit cover, make sure that the tightening torque does NOT exceed 4.1N•m.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

5678

Installer

00 01 02 03 04

05 06 07 08 09

0A 0B 0C 0D 0E

2 3

00 01 15 02 03 04

05 06 07 08 09

0A 0B 0C 0D 0E

00 01 20 02 03 04

05 06 07 08 09

0A 0B 0C 0D 0E

8.1 Overview: Configuration

This chapter describes what you have to do and know to configure the system after it is installed.

Why

If you do NOT configure the system correctly, it might NOT work as expected. The configuration influences the following:

▪ The calculations of the software

▪ What you can see on and do with the user interface

How

You can configure the system via the user interface.

▪ First time – Configuration wizard. When you turn ON the user

interface for the first time (via the indoor unit), the configuration wizard starts to help you configure the system.

▪ Restart the configuration wizard. If the system is already

configured, you can restart the configuration wizard. To restart the configuration wizard, go to Installer settings > Configuration wizard. To access Installer settings, see "8.1.1 To access the

most used commands"on page47.

▪ Afterwards. If necessary, you can make changes to the

configuration in the menu structure or the overview settings.

INFORMATION

When the configuration wizard is finished, the user interface will show an overview screen and request to confirm. When confirmed, the system will restart and the home screen will be displayed.

8 Configuration

Advanced user pin code

The Advanced user pin code is 1234. Additional menu items for the user are now visible.

User pin code

The User pin code is 0000.

To access the installer settings

1 Set the user permission level to Installer.

2 Go to [9]: Installer settings.

To modify an overview setting

Example: Modify [1‑01] from 15 to 20.

All settings can be done using the menu structure. If for any reason it is required to change a setting using the overview settings, then the overview settings can be accessed as follows:

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to [9.I]: Installer settings > Overview field

settings.

3 Turn the left dial to select the first part of the setting

and confirm by pressing the dial.

—

Accessing settings – Legend for tables

You can access the installer settings using two different methods. However, NOT all settings are accessible via both methods. If so, the corresponding table columns in this chapter are set to N/A (not applicable).

Method Column in tables

Accessing settings via the breadcrumb in the

menu structure. To enable breadcrumbs,

press the

Accessing settings via the code in the

button in the home screen.

Code

overview field settings.

8.1.1 To access the most used commands

To change the user permission level

You can change the user permission level as follows:

1 Go to [B]: User profile.

2 Enter the applicable code for the user permission. —

▪ Move the cursor from left to right.

▪ Browse through the list of digits and change the

selected digit.

▪ Confirm the pincode and proceed.

Installer pin code

The Installer pin code is 5678. Additional menu items and installer settings are now available.

4 Turn the left dial to select the second part of the

setting

5 Turn the right dial to modify the value from 15 to 20.

6 Press the left dial to confirm the new setting.

7 Press the center button to go back to the home

screen.

INFORMATION

When you change the overview settings and you go back to the home screen, the user interface will show a popup screen and request to restart the system.

When confirmed, the system will restart and recent changes will be applied.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

–

c2c1

1.6 bar

18 Feb 2018

22:19

18 21

8 Configuration

8.2 Configuration wizard

After first power ON of the system, the user interface will guide you using the configuration wizard. This way you can set the most important initial settings. This way the unit will be able to run properly. Afterwards, more detailed settings can be done via the menu structure if required.

You can find a short overview of the settings in the configuration here. All the settings can also be adjusted in the settings menu (use the breadcrumbs).

For the setting… Refer to…

Language [7.1]

Time/date [7.2]

Hours —

Minutes

Year

Month

Day

System

Indoor unit type (read only) "8.4.9Installer settings"on

Backup heater type [9.3.1]

Domestic hot water [9.2.1]

Emergency [9.5]

Number of zones [4.4] "8.4.5Space heating"on

Booster heater

Capacity [9.4.1] "Anti-legionella heater"on

BSH allowance schedule [9.4.2]

BSH eco timer [9.4.3]

Operation [9.4.4]

Main zone

Emitter type [2.7] "8.4.3Main zone"on

Control [2.9]

Setpoint mode [2.4]

Heating WD curve [2.5] (if applicable)

Schedule [2.1]

Additional zone (only if [4.4]=1)

Emitter type [3.7] "8.4.4Additional zone"on

Control (read only) [3.9]

Setpoint mode [3.4]

Heating WD curve [3.5] (if applicable)

Schedule [3.1]

Tank

Heat up mode [5.6] "8.4.6Tank"on page60

Comfort setpoint [5.2]

Eco setpoint [5.3]

Reheat setpoint [5.4]

page65

page57

page66

page53

page56

8.3 Possible screens

8.3.1 Possible screens: Overview

The most common screens are as follows:

Installer reference guide

a Home screen b Main menu screen c Lower level screens:

c1: Setpoint screen c2: Detailed screen with values

8.3.2 Home screen

Press the overview of the unit configuration and the room and setpoint temperatures. Only symbols applicable for your configuration are visible on the home screen.

Outdoor unit

Indoor unit / domestic hot water tank

Space operation mode

button to go back to the home screen. You see an

Possible actions on this screen

Go through the list of the main menu.

Go to the main menu screen.

Enable/disable breadcrumbs.

Item Description

The temperatures are shown in circles. If the circle is grey, the corresponding operation (example: space heating) is currently not active.

a3 Measured ambient temperature

b1 Indoor unit:

b2 Water pressure

: Outdoor unit

: Quiet mode active

▪

: Floor-standing indoor unit with

integrated tank

: Heating

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

g3 g1

g4 g2

h3 h1

–

Item Description

Disinfection / Powerful

Date / time e Current date and time

Holiday f

Main zone

Additional zone

Domestic hot water

Malfunction j

g1 Heat emitter type:

g2 Leaving water temperature setpoint

g3 Room thermostat type:

g4 Measured room temperature

h1 Heat emitter type:

h2 Leaving water temperature setpoint

h3 Room thermostat type:

i2 Measured tank temperature

: Disinfection mode active

▪

: Powerful operation active

▪

: Holiday mode active

▪

▪ Hidden: Leaving water temperature control

▪

▪ Hidden: Leaving water temperature control

See "12.4.1To display the help text in case of a

malfunction"on page85 for more information.

: Underfloor heating

: Fancoil unit

: Radiator

: Daikin user interface used as room

thermostat

: External control

: Underfloor heating

: Fancoil unit

: Radiator

: External control

: Domestic hot water

or : A malfunction occurred

Item Description

Room

Main zone

Additional zone

Space heating/

cooling

Tank

User settings

Information

Installer settings

Commissioning

User profile

Operation

Restriction: Only displayed if a room thermostat is connected to the indoor unit.

Set the room temperature.

Shows the applicable symbol for your main zone emitter type.

Set the leaving water temperature for the main zone.

Restriction: Only displayed if there are two leaving water temperature zones. Shows the applicable symbol for your additional zone emitter type.

Set the leaving water temperature for the additional zone (if present).

Shows the applicable symbol for your unit.

You cannot change the operation mode on heating only models.

Restriction: Only displayed if a domestic hot water tank is present.

Set the domestic hot water tank temperature.

Gives access to user settings such as holiday mode and quiet mode.

Displays data and information about the indoor unit.

Restriction: Only for the installer.

Gives access to advanced settings.

Restriction: Only for the installer.

Perform tests and maintenance.

Change the active user profile.

Turn heating functionality and domestic hot water preparation on or off.

8.3.4 Menu screen

8.3.3 Main menu screen

In the home screen, press From the main menu, you can access the different setpoint screens and submenus.

to open the main menu screen.

Possible actions on this screen

Go through the list.

Enter the submenu/setting.

8.3.5 Setpoint screen

Possible actions on this screen

Go through the list.

Enter the submenu.

Enable/disable breadcrumbs.

Item Description

Malfunctioning

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Restriction: Only displayed if a malfunction occurs.

See "12.4.1To display the help text in case

of a malfunction"on page85 for more

information.

The setpoint screen is displayed for screens describing system components that need a setpoint value.

Example:

▪ Room temperature screen

▪ Main zone screen

▪ Additional zone screen

▪ Tank temperature screen

Installer reference guide

8 Configuration

a b

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Possible actions on this screen

Go through the list of the submenu.

Go to the submenu.

Adjust and automatically apply the desired temperature.

Item Description

Minimum temperature limit a1 Fixed by the unit

a2 Restricted by the installer

Maximum temperature limit b1 Fixed by the unit

b2 Restricted by the installer

Current temperature c Measured by the unit

Desired temperature d Turn the right dial to

increase/decrease.

Submenu e Turn or press the left dial to

go to the submenu.

8.3.6 Detailed screen with values

Item Description

a Possible weather dependent zones:

▪

: Main zone or additional zone heating

: Domestic hot water

▪

X, X1, X2 Outdoor ambient temperature

Y, Y1, Y2 Desired tank temperature or leaving water temperature.

The symbol shown here corresponds to the heat emitter for that zone:

: Underfloor heating

▪

: Fan coil unit

▪

: Radiator

▪

: Domestic hot water tank

▪

8.3.8 Schedule screen: Example

This example shows how to set a room temperature schedule in heating mode for the main zone.

INFORMATION

The procedures to program other schedules are similar.

To program the schedule

Example: You want to program the following schedule:

a Settings b Values

Possible actions on this screen

Go through the list of settings.

Change the value.

Go to the next setting.

Confirm changes and proceed.

8.3.7 Detailed screen with weather-dependent curve

When weather dependent operation is active the desired tank temperature is determined automatically depending on the averaged outdoor temperature. When the outdoor temperature is lower the tank temperature will need to be higher as the water pipes will be colder and vice versa.

The weather-dependent curves are defined by two setpoints:

▪ Setpoint (X1, Y2)

▪ Setpoint (X2, Y1)

Weather-dependent curve:

Prerequisite: The room temperature schedule is only available if room thermostat control is active. If leaving water temperature control is active, you can program the main zone schedule instead.

1 Go to the schedule.

2 Clear the contents of the schedule (optional).

3 Program the schedule for Monday.

4 Copy the schedule to the other weekdays.

5 Program the schedule for Saturday and copy it to Sunday.

6 Give the schedule a name.

To go to the schedule:

1 Go to [1.1]: Room > Schedule.

2 Set scheduling to Yes.

3 Go to [1.2]: Room > Heating schedule.

To clear the contents of the schedule:

1 Select the name of the current schedule.

Installer reference guide

Possible actions on this screen

Go through the temperatures.

Change the temperature.

Go to the next temperature.

Confirm changes and proceed.

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

Edit

Delete

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Delete

Copy

Edit

6:00 8:30

17:30

20°C 18°C

22:00

--:--

18°C

21°C

12 24

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Edit

Copy

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Copy

Paste

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

8:00

23:00

--:--

21°C 18°C

12 24

Sat

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

Mon

Sat

Wed

Fri

Thu

Tue

Sun

User defined 1

2 Select Delete.

3 Select OK to confirm.

To program the schedule for Monday:

1 Select Monday.

2 Select Edit.

3 Use the left dial to select an entry and edit the entry

with the right dial. You can program up to 6 actions each day.

4 Select Paste.

Result:

5 Repeat this action for all other weekdays.

—

To program the schedule for Saturday and copy it to Sunday:

1 Select Saturday.

2 Select Edit.

3 Use the left dial to select an entry and edit the entry

with the right dial.

4 Confirm the changes.

To copy the schedule to the other weekdays:

1 Select Monday.

2 Select Copy.

Result: "C" is displayed next to the copied day.

3 Select Tuesday.

4 Confirm the changes.

5 Select Saturday.

6 Select Copy.

7 Select Sunday.

8 Select Paste.

Result:

To rename the schedule:

INFORMATION

Not all schedules can be renamed.

1 Select the name of the current schedule.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

Delete

Rename

2 Select the Rename option.

3 Browse through the character list and confirm the

selected character.

4 Confirm the new name.

8.4 Settings menu

You can set additional settings using the main menu screen and its submenus. The most important settings are presented here.

8.4.1 Malfunction

In case of a malfunction, or will appear on the home screen. If you open the menu screen, the Malfunctioning menu will now be visible. Open the menu to see the error code. Press to get more information about the error.

8.4.2 Room

Setpoint screen

You can control the room temperature of the main zone with the setpoint screen, also see "8.3.5Setpoint screen"on page49.

Schedule

In this menu item you can indicate if the room temperature is controlled with a schedule or not.

# Code Description

[1.1] N/A Schedule

▪ 0 No: Room temperature is controlled

by the user.

▪ 1 Yes: Room temperature is controlled

with a schedule and can be modified by the user.

Heating schedule

This is available for all models.

You can set the room temperature heating schedule using the schedule screen. For more information about this screen, see

"8.3.8Schedule screen: Example"on page50.

Antifrost

Room frost protection [1.4] prevents the room from getting too cold. This setting behaves differently depending on the set unit control method [2.9]. Perform actions according to the table below.

Main zone unit control

method [2.9]

Leaving water temperature control ([C‑07]=0)

External room thermostat control ([C‑07]=1)

Room frost protection is NOT guaranteed.

Allow for the external room thermostat to take care of room frost protection:

▪ Turn ON [C.2]: Space heating/

cooling

Description

Main zone unit control

method [2.9]

Room thermostat control ([C‑07]=2)

NOTICE

If the system does NOT contain a backup heater, then:

▪ Make sure that the room antifrost control is activated

([2-06]=1).

▪ Do NOT change the default room antifrost temperature

[2-05].

▪ Make sure that the water pipe freeze prevention is

activated ([4-04]≠2).

INFORMATION

If a U4 error occurs, room frost protection is NOT guaranteed.

For more detailed information about room frost protection in relation to the applicable unit control method, see the sections below:

Leaving water temperature control ([C‑07]=0)

Under leaving water temperature control, room frost protection is NOT guaranteed. However, if room antifrost [1.4] is activated, limited frost protection by the unit is possible:

If... Then...

Space heating/cooling is OFF and the outdoor ambient temperature drops below 4°C

Space heating/cooling is ON and the operation mode is "heating"

External room thermostat control ([C‑07]=1)

Under external room thermostat control, room frost protection is guaranteed by the external room thermostat, provided that Space heating/cooling [C.2] is turned ON and the emergency setting [9.5] is set to automatic.

In case of one leaving water temperature zone:

If... Then...

Space heating/cooling is OFF and the outdoor ambient temperature drops below 4°C

Space heating/cooling is ON, the external room thermostat is "Thermo OFF" and the outdoor temperature drops below 4°C

Space heating/cooling is ON and the external room thermostat is "Thermo ON"

Allow for the user interface used as room thermostat to take care of room frost protection:

▪ Choose [1.4.1]=1: Room >

Antifrost > Activation > Yes

▪ Set the room antifrost setpoint

([1.4.2]): Room > Antifrost > Room setpoint

The unit will supply leaving water to the heat emitters to heat up the room again, and the leaving water temperature setpoint will be lowered.

The unit will supply leaving water to the heat emitters to heat up the room according to normal logic.

The unit will supply leaving water to the heat emitters to heat up the room again, and the leaving water temperature setpoint will be lowered.

Room frost protection is guaranteed by the normal logic.

Description

Installer reference guide

In case of two leaving water temperature zones:

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

If... Then...

Space heating/cooling is OFF and the outdoor ambient temperature drops below 4°C

Space heating/cooling is ON, the external room thermostat is "Thermo OFF", the operation mode is "heating" and the outdoor temperature drops below 4°C

Room thermostat control ([C‑07]=2)

During room thermostat control, room frost protection is guaranteed if it is enabled. When room frost protection [2‑06] is activated and the room temperature drops below the room antifrost temperature [2‑05], the unit will supply leaving water to the heat emitters to heat up the room again.

# Code Description

[1.4.1] [2-06] Activation:

[1.4.2] [2-05] Room setpoint 4°C~16°C

INFORMATION

When the user interface used as room thermostat is disconnected (due to miswiring, damage of the cable), then room frost protection is NOT guaranteed.

NOTICE

If Emergency is set to Manual ([9.5]=0), and the unit is triggered to start emergency operation, the unit will stop and need to be recovered manually via the user interface. To recover operation manually, go to the Malfunctioning main menu screen, where the user interface will then ask you to confirm emergency operation before starting.

Room frost protection is active even if the user does NOT confirm emergency operation.

Setpoint range

ONLY applicable in room thermostat control. To save energy by preventing overheating the room, you can limit the range of the room temperature for heating.

NOTICE

When adjusting the room temperature ranges, all desired room temperatures are also adjusted to guarantee they are between the limits.

# Code Description

[1.5.1] [3-07] Heating minimum

[1.5.2] [3-06] Heating maximum

Room sensor offset

ONLY applicable in case of room thermostat control. You can calibrate the (external) room temperature sensor. It is possible to give an offset to the room thermistor value measured by the user interface used as room thermostat or by the external room sensor. The settings can be used to compensate for situations where the user interface used as room thermostat or the external room sensor CANNOT be installed on the ideal installation location (see

"5.7Setting up an external temperature sensor"on page21).

The unit will supply leaving water to the heat emitters to heat up the room again, and the leaving water temperature setpoint will be lowered.

▪ 0 No: Antifrost functionality is OFF.

▪ 1 Yes: Antifrost functionality is on.

# Code Description

[1.6] [2-0A] Room sensor offset (user interface used

as room thermostat): Offset on the actual room temperature measured on the user interface used as room thermostat.

▪ –5°C~5°C, step 0.5°C

[1.7] [2-09] Room sensor offset (external room

sensor option): ONLY applicable if the external room sensor option is installed and configured.

▪ –5°C~5°C, step 0.5°C

8.4.3 Main zone

Setpoint screen

You can set the leaving water temperature for the main zone using the setpoint screen. For more information about how to do this, see

"8.3.5Setpoint screen"on page49.

Schedule

Indicates if the desired leaving water temperature is according to a schedule. Influence of the LWT setpoint mode [2.4] is as follows:

▪ In Fixed LWT setpoint mode, the scheduled actions consist of

desired leaving water temperatures, either preset or custom.

▪ In Weather dependent LWT setpoint mode, the scheduled actions

consist of desired shift actions, either preset or custom.

# Code Description

[2.1] N/A Schedule

▪ 0: No

▪ 1: Yes

Heating schedule

You can set the main zone heating temperature schedule using the schedule screen. For more information about this screen, see

"8.3.8Schedule screen: Example"on page50.

Setpoint mode

In Fixed mode, the desired leaving water temperature does NOT depend on the outdoor ambient temperature.

In Weather dependent mode, the desired leaving water temperature depends on the outdoor ambient temperature.

# Code Description

[2.4] N/A Setpoint mode

▪ 0: Fixed

▪ 2: Weather dependent

When weather dependent operation is active, low outdoor temperatures will result in warmer water and vice versa. During weather dependent operation, the user has the possibility to shift the water temperature up or down by a maximum of 10°C.

Heating WD curve

Set weather-dependent heating for the main zone (if [2.4] = 1 or 2):

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

[1-03]

[1-02]

[1-00] [1-01]

# Code Description

[2.5] [1-00]

Set weather-dependent heating:

[1-01]

[1-02]

[1-03]

▪ Tt: Target leaving water temperature

(main zone)

▪ Ta: Outdoor temperature

▪ [1-00]: Low outdoor ambient

temperature. –40°C~+5°C

▪ [1-01]: High outdoor ambient

temperature. 10°C~25°C

▪ [1-02]: Desired leaving water

temperature when the outdoor temperature equals or drops below the low ambient temperature. [9‑01]°C~[9‑00]°C Note: This value should be higher than [1‑03] as for low outdoor temperatures warmer water is required.

▪ [1-03]: Desired leaving water

temperature when the outdoor temperature equals or rises above the high ambient temperature. [9‑01]°C~min(45, [9‑00])°C Note: This value should be lower than [1‑02] as for high outdoor temperatures less warm water is required.

Emitter type

Depending on the system water volume and the heater emitter type of the main zone, the heat up of the main zone can take longer. This setting can compensate for a slow or a quick heating system during the heat up cycle. The target delta T for the main zone will depend on this setting.

In room thermostat control, this setting will influence the maximum modulation of the desired leaving water temperature.

Therefore it is important to set this correctly and in accordance with your system layout.

# Code Description

[2.7] [2‑0C] Emitter type

▪ 0: Underfloor heating

▪ 1: Fancoil unit

▪ 2: Radiator

The setting of the emitter type has an influence on the space heating setpoint range and the target delta T in heating as follows:

Emitter type Main

zone

Space heating

setpoint range

Target delta T in

heating [1‑0B]

[9‑01]~[9‑00]

0: Underfloor heating Maximum 55°C Variable (see [2.B])

1: Fancoil unit Maximum 55°C Variable (see [2.B])

2: Radiator Maximum 65°C Fixed 10°C

NOTICE

The maximum setpoint in space heating depends on the emitter type as can be seen in above table. If there are 2 water temperature zones, then the maximum setpoint is the maximum of the 2 zones.

CAUTION

If there are 2 zones, it is important that the zone with the lowest water temperature is configured as the main zone, and the zone with the highest water temperature is configured as the additional zone. Not configuring the system in this way could cause damage to the heat emitters.

CAUTION

If there are 2 zones and the emitter types are wrongly configured, water of high temperature can be sent towards a low temperature emitter (underfloor heating). To avoid this:

▪ Install an aquastat/thermostatic valve to avoid too high

temperatures towards a low temperature emitter.

▪ Make sure you set the emitter types for the main zone

[2.7] and for the additional zone [3.7] correctly in accordance with the connected emitter.

INFORMATION

Depending on the target delta T, the average emitter temperature will vary. To counteract the effect on the average emitter temperature due to a higher delta T target, the leaving water setpoint (fixed or weather dependent) can be adjusted.

Setpoint range

You can limit the range of the leaving water temperature for the main leaving water temperature zone. The purpose of this setting is to prevent a wrong (i.e. too hot or too cold) leaving water temperature. Therefore, the available desired heating temperature range can be configured.

NOTICE

In case of a floor heating application it is important to limit the maximum leaving water temperature at heating operation according to the specifications of the floor heating installation.

NOTICE

▪ When adjusting the leaving water temperature ranges,

all desired leaving water temperatures are also adjusted to guarantee they are between the limits.

▪ Always balance between the desired leaving water

temperature with the desired room temperature and/or the capacity (according to the design and selection of the heat emitters). The desired leaving water temperature is the result of several settings (preset values, shift values, weather dependent curves, modulation). As a result, too high or too low leaving water temperatures could occur which lead to overtemperatures or capacity shortage. By limiting the leaving water temperature range to adequate values (depending on the heat emitter), such situations can be avoided.

Example: Set the minimum leaving water temperature to 28°C to avoid NOT to be able to heat up the room: leaving water temperatures MUST be sufficiently higher than the room temperatures (in heating).

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

# Code Description

Leaving water temperature range for the main leaving water temperature zone (= the leaving water temperature zone with the lowest leaving water temperature in heating operation)

[2.8.1] [9-01] Heating minimum 15°C~37°C

[2.8.2] [9-00] Heating maximum

▪ [2‑0C]=2 (emitter type main zone =

radiator) 37°C~65°C

▪ Otherwise: 37°C~55°C

Control

For the control of the unit there are 3 possibilities:

Control In this control...

Leaving water Unit operation is decided based on the leaving

water temperature regardless the actual room temperature and/or heating demand of the room.

External room thermostat

Room thermostat Unit operation is decided based on the ambient

# Code Description

[2.9] [C‑07] ▪ 0: Leaving water

Thermostat type

Only applicable in external room thermostat control.

NOTICE

Unit operation is decided by the external thermostat or equivalent (e.g. heat pump convector).

temperature of the user interface used as a room thermostat.

▪ 1: External room thermostat

▪ 2: Room thermostat

8 Configuration

# Code Description

[2.A] [C‑05] External room thermostat type for the

main zone:

▪ 1: 1 contact: The used external room

thermostat can only send a thermo ON/OFF condition. There is no separation between heating or cooling demand. The room thermostat is connected to only 1 digital input (X2M/35). Select this value in case of a connection to the heat pump convector (FWXV).

▪ 2: 2 contacts: The used external room

thermostat can send a separate heating/cooling thermo ON/OFF condition. The room thermostat is connected to 2 digital inputs (X2M/35 and X2M/34). Select this value in case of a connection to the wired (EKRTWA) or wireless (EKRTR1) room thermostat

Leaving water temperature: Delta T

The target delta T in heating for the main zone depends on the emitter type for the main zone selected above. In heating, this setting indicates the temperature difference between the leaving water setpoint and entering water.

The unit is designed to support under floor loops operation. The recommended leaving water temperature for under floor loops is 35°C. In such case, the unit will be controlled to realize a temperature difference of 5°C which means that the unit entering water temperature is around 30°C. Depending on the installed application (radiators, heat pump convector, under floor loops) or situation, it can be possible to change the difference between entering and leaving water temperature. Note that the pump will regulate its flow to keep the delta T. In some special cases, the measured deltaT can be different from the set value.

INFORMATION

When only the anti‑legionella heater is active in heating, deltaT will be controlled according to the fixed capacity of the anti‑legionella heater. It is possible that this deltaT is different from the selected target deltaT.

INFORMATION

In heating, the target delta T will only be achieved after some operation time, when the setpoint is being reached, because of the big difference between leaving water temperature setpoint and inlet temperature at startup.

INFORMATION

If the main zone or the additional zone has a heating demand, and this zone is equipped with radiators, then the target delta T that the unit will use in heating operation will be 10°C fixed.

If the zones are not equipped with radiators, then in heating the unit will give priority to the target deltaT for the additional zone, if there is a heating demand in the additional zone.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

# Code Description

[2.B.1] [1‑0B] Delta T heating: A minimum temperature

difference is required for the good operation of heat emitters in heating mode.

▪ If [2-0C]=2, this is fixed to 10°C

▪ Else: 3°C~10°C

Installer reference guide

8 Configuration

+[8-06]

−[8-06]

Leaving water temperature: Modulation

Only applicable in case of room thermostat control. When using the room thermostat functionality, the customer needs to set the desired room temperature. The unit will supply hot water to the heat emitters and the room will be heated. Additionally, also the desired leaving water temperature must be configured: when turning on the modulation, the desired leaving water temperature will be calculated automatically by the unit (based on the preset temperatures, if weather-dependent is selected, modulation will be done based on the desired weather-dependent temperatures); when turning off the modulation, you can set the desired leaving water temperature on the user interface. Moreover, with the modulation turned on, the desired leaving water temperature is lowered or raised in function of the desired room temperature and the difference between the actual and the desired room temperature. This results in:

▪ stable room temperatures exactly matching the desired

temperature (higher comfort level)

▪ less on/off cycles (lower noise level, higher comfort and higher

efficiency)

▪ water temperatures as low as possible to match the desired

temperature (higher efficiency)

# Code Description

[2.C.1] [8‑05] Modulation:

▪ 0 No: Disabled, the desired leaving

water temperature needs to be set on the user interface.

▪ 1 Yes: Enabled, the leaving water

temperature is calculated according to the difference between the desired and the actual room temperature. This creates a better match between the capacity of the heat pump and the actual required capacity, and results in less start/stop cycles and a more economic operation. Note: The desired leaving water temperature can only be read out on the user interface.

[2.C.2] [8‑06] Max modulation:

▪ 0°C~10°C

This is the temperature value by which the desired leaving water temperature is increased or decreased.

INFORMATION

When leaving water temperature modulation is enabled, the weather‑dependent curve needs to be set to a higher position than [8-06] plus the minimum leaving water temperature setpoint required to reach a stable condition on the comfort setpoint for the room. To increase efficiency, modulation can lower the leaving water setpoint. By setting the weather‑dependent curve to a higher position, it cannot drop below the minimum setpoint. Refer to the illustration below.

b Minimum leaving water temperature setpoint required to

reach a stable condition on the comfort setpoint for the room.

Shut off valve

The following is only applicable in case of 2 leaving water temperature zones. In case of 1 leaving water temperature zone, connect the shut-off valve to the heating/cooling output.

The shut off valve for the main leaving water temperature zone can close under these circumstances:

INFORMATION

During defrost operation, the shut-off valve is ALWAYS opened.

During thermo: If [F‑0B] is enabled, the shut off valve closes when there is no heating demand from the main zone. Enable this setting to:

▪ avoid leaving water supply to the heat emitters in the main LWT

zone (through the mixing valve station) when there is request from the additional LWT zone.

▪ activate the ON/OFF pump of the mixing valve station ONLY when

there is demand.

# Code Description

[2.D.1] [F-0B] The shut off valve:

▪ 0 No: is NOT influenced by heating

demand.

▪ 1 Yes: closes when there is NO

heating demand.

INFORMATION

The setting [F‑0B] is only valid when there is a thermostat or external room thermostat request setting (NOT in case of leaving water temperature setting).

8.4.4 Additional zone

Setpoint screen

You can set the leaving water temperature for the additional zone using the setpoint screen. For more information about how to do this, see "8.3.5Setpoint screen"on page49.

Schedule

Indicates if the desired leaving water temperature is according to a schedule. Also see "8.4.3Main zone"on page53.

# Code Description

[3.1] N/A Schedule

▪ 0: No

▪ 1: Yes

Heating schedule

You can set the additional zone heating temperature schedule using the schedule screen. For more information about this screen, see

"8.3.8Schedule screen: Example"on page50.

Setpoint mode

The setpoint mode of the additional zone can be independently set from the setpoint mode of the main zone, see " Main zone" on

page53.

Installer reference guide

a Weather-dependent curve

# Code Description

[3.4] N/A Setpoint mode

▪ 0: Fixed

▪ 1: WD heating, fixed cooling

▪ 2: Weather dependent

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

[0-00]

[0-01]

[0-03] [0-02]

Heating WD curve

Set weather-dependent heating for the additional zone (if [3.4] = 1 or

2):

# Code Description

[3.5] [0-00]

Set weather-dependent heating:

[0-01]

[0-02]

[0-03]

# Code Description

Leaving water temperature range for the additional leaving water temperature zone (= the leaving water temperature zone with the highest leaving water temperature in heating operation)

[3.8.1] [9-05] Heating minimum: 15°C~37°C

[3.8.2] [9-06] Heating maximum

▪ [2‑0D]=2 (emitter type additional zone

= radiator) 37°C~65°C

▪ Else: 37°C~55°C

Control

The control type is displayed here, but cannot be adjusted. It is determined by the control type of the main zone. For more info about

▪ Tt: Target leaving water temperature

(additional zone)

▪ Ta: Outdoor temperature

▪ [0-03]: Low outdoor ambient

temperature. –40°C~+5°C

▪ [0-02]: High outdoor ambient

temperature. 10°C~25°C

▪ [0-01]: Desired leaving water

temperature when the outdoor temperature equals or drops below the low ambient temperature. [9‑05]°C~[9‑06]°C Note: This value should be higher than [0‑00] as for low outdoor temperatures warmer water is required.

▪ [0-00]: Desired leaving water

temperature when the outdoor temperature equals or rises above the high ambient temperature. [9‑05]~min(45, [9‑06])°C Note: This value should be lower than [0‑01] as for high outdoor

the functionality, see "8.4.3Main zone"on page53.

# Code Description

[3.9] N/A Control

▪ Leaving water if the control type of the

main zone is Leaving water.

▪ External room thermostat if the control

type of the main zone is External room thermostat or Room thermostat.

Thermostat type

Only applicable in external room thermostat control. For more info about the functionality, see "8.4.3Main zone"on page53.

# Code Description

[3.A] [C‑06] External room thermostat type for the

additional zone:

▪ 1: 1 contact. Connected to only 1

digital input (X2M/35a)

▪ 2: 2 contacts. Connected to 2 digital

inputs (X2M/34a and X2M/35a)

Leaving water temperature: Delta T

For more information, see "8.4.3Main zone"on page53.

temperatures less warm water is required.

Emitter type

For more info about this functionality, see "8.4.3 Main zone" on

page53.

# Code Description

[3.7] [2‑0D] Emitter type

▪ 0: Underfloor heating

▪ 1: Fancoil unit

▪ 2: Radiator

The setting of the emitter type has an influence on the space heating setpoint range and the target delta T in heating as follows:

Emitter type

Additional zone

Space heating setpoint range

Target delta T in

heating [1‑0C]

[9‑05]~[9‑06]

0: Underfloor heating Maximum 55°C Variable (see [2.B])

1: Fancoil unit Maximum 55°C Variable (see [2.B])

2: Radiator Maximum 65°C Fixed 10°C

# Code Description

[3.B.1] [1-0C] Delta T heating: A minimum temperature

difference is required for the good operation of heat emitters in heating mode.

▪ If [2-0D] = 2, this is fixed to 10°C

▪ Else: 3°C~10°C

# Code Description

[3.B.1] [1-0C] Delta T heating: A minimum temperature

difference is required for the good operation of heat emitters in heating mode.

▪ If [2-0D] = 2, this is fixed to 8°C

▪ Else: 3°C~10°C

8.4.5 Space heating

About space operation modes

This unit is a heating only model. The system can heat up a space, but NOT cool down a space.

Setpoint range

For more information about this setting, also see "8.4.3 Main

zone"on page53.

Operation range

Depending on the average outdoor temperature, the operation of the unit in space heating is prohibited.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

b c

a b

g b

# Code Description

[4.3.1] [4-02] Space heating off temperature: When the

averaged outdoor temperature rises above this value, space heating is turned off.

▪ 14°C~35°C

Number of zones

The system can supply leaving water to up to 2 water temperature zones. During configuration, the number of water zones must be set.

# Code Description

[4.4] [7‑02] ▪ 0: Single zone

Only one leaving water temperature zone:

CAUTION

If there are 2 zones and the emitter types are wrongly configured, water of high temperature can be sent towards a low temperature emitter (underfloor heating). To avoid this:

▪ Install an aquastat/thermostatic valve to avoid too high

temperatures towards a low temperature emitter.

▪ Make sure you set the emitter types for the main zone

[2.7] and for the additional zone [3.7] correctly in accordance with the connected emitter.

Pump operation mode

When the space heating operation is OFF, the pump is always OFF. When space heating operation is ON, you have the choice between these operation modes:

# Code Description

[4.5] [F–0D] Pump operation mode:

▪ 0 Continuous: Continuous pump

operation, regardless of thermo ON or OFF condition. Remark: Continuous pump operation requires more energy than sample or request pump operation.

▪ a: Main LWT zone

[4.4] [7‑02] ▪ 1: Dual zone

Two leaving water temperature zones. The main leaving water temperature zone consists of the higher load heat emitters and a mixing station to achieve the desired leaving water temperature. In heating:

▪ a: Additional LWT zone: Highest

temperature

▪ b: Main LWT zone: Lowest

temperature

CAUTION

▪ a: Space heating control

▪ b: Off

▪ c: On

▪ d: Pump operation

[4.5] [F-0D] ▪ 1 Sample: The pump is ON when

there is heating demand as the leaving water temperature has not yet reached the desired temperature yet. When thermo OFF condition occurs, the pump runs every 3 minutes to check the water temperature and demand heating if necessary. Remark: Sample is ONLY available in leaving water temperature control.

▪ a: Space heating control

▪ b: Off

▪ c: On

▪ d: LWT temperature

▪ e: Actual

▪ f: Desired

▪ g: Pump operation

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

# Code Description

b c

[9-0D]=0 [9-0D]=5

a (kPa)

b (l/min)

a (kPa)

b (l/min)

a (kPa)

b (l/min)

a (kPa)

b (l/min)

[9-0D]=6 [9-0D]=7

[9-0D]=8

a (kPa)

b (l/min)

[4.5] [F-0D] ▪ 2 Request: Pump operation based on

request. Example: Using a room thermostat and thermostat creates thermo ON/OFF condition. Remark: NOT available in leaving water temperature control.

▪ a: Space heating control

▪ b: Off

▪ c: On

▪ d: Heating demand (by external

room thermostat or room thermostat)

▪ e: Pump operation

Unit type

In this part of the menu it can be read out which type of unit is used:

8 Configuration

# Code Description

[4.6] N/A Unit type:

▪ 1 Cooling only

▪ 2 Heating only

▪ 3 Reversible

Pump limitation

Pump speed limitation [9‑0D] defines the maximum pump speed. In normal conditions, the default setting should NOT be modified. The pump speed limitation will be overruled when the flow rate is in the range of the minimum flow (error 7H).

# Code Description

[4.7] [9-0D] Pump limitation:

▪ 0: No limitation

▪ 1~4: General limitation. There is

limitation in all conditions. The required delta T control and comfort are NOT guaranteed.

▪ 5~8: Limitation when no actuators.

When there is no heating output, the pump speed limitation is applicable. When there is heating output, the pump speed is only determined by delta T in relation to the required capacity. With this limitation range, delta T is possible and the comfort is guaranteed.

a External static pressure b Water flow rate

Pump outside range

When the pump operation function is disabled the pump will stop if the outdoor temperature is higher than the value set by the Space heating off temperature [4‑02]. When the pump operation is enabled, the pump operation is possible at all outdoor temperatures.

# Code Description

[4.9] [F-00] Pump operation:

▪ 0: Disabled if outdoor temperature is

higher than [4‑02].

▪ 1: Possible at all outdoor

temperatures.

The maximum values depend on the unit type:

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Increase around 0°C

Use this setting to compensate for possible heat losses of the building due to the evaporation of melted ice or snow. (e.g. in cold region countries).

In heating operation, the desired leaving water temperature is locally increased around an outdoor temperature of 0°C.This compensation can be selected when using an absolute or a weather dependent desired temperature (see illustration below).

Installer reference guide

8 Configuration

0°C

a b

a Absolute desired LWT b Weather dependent desired LWT

# Code Description

[4.A] [D-03] Increase around 0°C

▪ 0: No

▪ 1: increase 2°C, span 4°C

▪ 2: increase 4°C, span 4°C

▪ 3: increase 2°C, span 8°C

▪ 4: increase 4°C, span 8°C

Overshoot

This function defines how much the water temperature may rise above the desired leaving water temperature before the compressor stops. The compressor will start up again when the leaving water temperature drops below the desired leaving water temperature. This function is ONLY applicable in heating mode.

# Code Description

[4.B] [9-04] Overshoot

▪ 1°C~4°C

Antifrost

Room frost protection [1.4] prevents the room from getting too cold. For more information about room frost protection, see

"8.4.2Room"on page52.

INFORMATION

When powerful operation is active, the risk of space heating and capacity shortage comfort problems is significant. In case of frequent domestic hot water operation, frequent and long space heating interruptions will happen.

Comfort setpoint

Only applicable when domestic hot water preparation is Schedule only or Schedule + reheat. When programming the schedule, you can make use of the comfort setpoint as a preset value. When you later want to change the storage setpoint, you only have to do it in one place.

The tank will heat up until the storage comfort temperature has been reached. It is the higher desired temperature when a storage comfort action is scheduled.

Additionally, a storage stop can be programmed. This feature puts a stop to tank heating even if the setpoint has NOT been reached. Only program a storage stop when tank heating is absolutely undesirable.

# Code Description

[5.2] [6-0A] Comfort setpoint

▪ 30°C~[6‑0E]°C

Eco setpoint

The storage economic temperature denotes the lower desired tank temperature. It is the desired temperature when a storage economic action is scheduled (preferably during day).

# Code Description

[5.3] [6-0B] Eco setpoint

▪ 30°C~min(50,[6‑0E])°C

8.4.6 Tank

Tank setpoint screen

You can set the domestic hot water temperature using the setpoint screen. For more information about how to do this, see

"8.3.5Setpoint screen"on page49.

Powerful operation

You can use powerful operation to immediately start heating up the water to the preset value (Storage comfort). However, this consumes

extra energy. If powerful operation is active, the home screen.

To activate powerful operation

Activate or deactivate Powerful operation as follows:

1 Go to [5.1]: Tank > Powerful operation

2 Turn powerful operation Off or On.

Usage example: You immediately need more hot water

If you are in the following situation:

▪ You already consumed most of your hot water.

▪ You cannot wait for the next scheduled action to heat up the DHW

tank.

Then you can activate DHW powerful operation.

Advantage: The DHW tank immediately starts heating up the water to the preset value (Storage comfort).

will be shown on

Reheat setpoint

Desired reheat tank temperature, used:

▪ in Schedule + reheat mode, during reheat mode: the guaranteed

minimum tank temperature is set by the Reheat setpoint minus the reheat hysteresis. If the tank temperature drops below this value, the tank is heated up.

▪ during storage comfort, to prioritize the domestic hot water

preparation. When the tank temperature rises above this value, domestic hot water preparation and space heating/cooling are executed sequentially.

# Code Description

[5.4] [6-0C] Reheat setpoint

▪ 30°C~min(50,[6‑0E])°C

Schedule

You can set the tank temperature schedule using the schedule screen. For more information about this screen, see "8.3.8Schedule

screen: Example"on page50.

Heat up mode

The domestic hot water can be prepared in 3 different ways. They differ from each other by the way the desired tank temperature is set and how the unit acts upon it.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

00.00 22.00 24.0001.00 23.00 t

DHW

[2-02]

[2-03]

[2-04]

# Code Description

[5.6] [6-0D] Heat up mode

▪ 0: Reheat only: Only reheat operation

is allowed.

▪ 1: Schedule + reheat: The domestic

hot water tank is heated according to a schedule and between the scheduled heat up cycles, reheat operation is allowed.

▪ 2: Schedule only: The domestic hot

water tank can ONLY be heated according to a schedule.

See the operation manual for more details.

Disinfection

Applies only to installations with a domestic hot water tank.

The disinfection function disinfects the domestic hot water tank by periodically heating the domestic hot water to a specific temperature.

CAUTION

The disinfection function settings MUST be configured by the installer according to the applicable legislation.

# Code Description

[5.7.1] [2‑01] Activation

▪ 0: No

▪ 1: Yes

[5.7.2] [2‑00] Operation day

▪ 0: Every day

▪ 1: Monday

▪ 2: Tuesday

▪ 3: Wednesday

▪ 4: Thursday

▪ 5: Friday

▪ 6: Saturday

▪ 7: Sunday

[5.7.3] [2‑02] Start time

[5.7.4] [2‑03] Tank setpoint

70°C

[5.7.5] [2‑04] Duration

5~60minutes

WARNING

Be aware that the domestic hot water temperature at the hot water tap will be equal to the value selected in field setting [2-03] after a disinfection operation.

When the high domestic hot water temperature can be a potential risk for human injuries, a mixing valve (field supply) shall be installed at the hot water outlet connection of the domestic hot water tank. This mixing valve shall secure that the hot water temperature at the hot water tap never rise above a set maximum value. This maximum allowable hot water temperature shall be selected according to the applicable legislation.

CAUTION

Be sure that the disinfection function start time [5.7.3] with defined duration [5.7.5] is NOT interrupted by possible domestic hot water demand.

CAUTION

BSH allowance schedule [9.4.2] is used to restrict or allow anti-legionella heater operation based on a weekly program. Advice: In order to avoid unsuccessful disinfection function, at least allow the anti-legionella heater (by the weekly program) for minimum 4 hours starting from the scheduled start-up of disinfection. If the anti-legionella heater is restricted during disinfection, this function will NOT be successful and the applicable warning AH will be generated.

INFORMATION

In case of error code AH and no interruption of the disinfection function occurred due to domestic hot water tapping, following actions are recommended:

▪ When the Domestic hot water > Type > Reheat or

Reheat + sched. is selected, it is recommended to program the start-up of the disinfection function at least 4 hours later than the last expected large hot water tapping. This start-up can be set by installer settings (disinfection function).

▪ When the Domestic hot water > Type > Scheduled only

is selected, it is recommended to program a Storage eco 3 hours before the scheduled start-up of the disinfection function to preheat the tank.

INFORMATION

Disinfection function is restarted in case the domestic hot water temperature drops 5°C below the disinfection target temperature within the duration time.

Domestic hot water temperature

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

DHW

TUUser set point temperature THHigh set point temperature [2-03]

t Time

INFORMATION

An AH error occurs if you turn off domestic hot water operation during disinfection.

Maximum DHWtemperature setpoint

The maximum temperature that users can select for the domestic hot water. You can use this setting to limit the temperatures at the hot water taps.

INFORMATION

During disinfection of the domestic hot water tank, the DHWtemperature can exceed this maximum temperature.

INFORMATION

Limit the maximum hot water temperature according to the applicable legislation.

Installer reference guide

8 Configuration

DHW

[0-0C]

[0-0B]

[0-0E] [0-0D]

DHW

HP ON

HP OFF

HP MAX

U=TBUH OFF

[6-01] [6-00]

TU= 60°C T

HP MAX

= 50°C [6-01] = 2°C [6-00] = 2°C

BUH

# Code Description

[5.8] [6-0E] Maximum

The maximum temperature that users can select for the domestic hot water. You can use this setting to limit the temperature at the hot water taps.

The maximum temperature is NOT applicable during disinfection function. See disinfection function.

Hysteresis

The following ON hysteresis can be set.

Heat pump ON hysteresis

Applicable when domestic hot water preparation is reheat only. When the tank temperature drops below the reheat temperature minus the heat pump ON hysteresis temperature, the tank heats up to the reheat temperature.

The minimum ON temperature is 20°C, even if setpoint hysteresis is smaller than 20°C.

# Code Description

[5.9] [6-00] Heat pump ON hysteresis

▪ 2°C~40°C

Reheat hysteresis

Applicable when domestic hot water preparation is scheduled +reheat. When the tank temperature drops below the reheat temperature minus the reheat hysteresis temperature, the tank heats up to the reheat temperature.

# Code Description

[5.A] [6-08] Reheat hysteresis

▪ 2°C~20°C

Setpoint mode

# Code Description

[5.B] N/A Setpoint mode:

▪ Fixed

▪ Weather dependent

# Code Description

[5.C] [0-0E]

Weather-dependent curve

[0-0D]

[0-0C]

[0-0B]

▪ T

: The desired tank temperature.

DHW

▪ Ta: The (averaged) outdoor ambient

temperature

▪ [0-0E]: low outdoor ambient

temperature: -40°C‑5°C

▪ [0-0D]: high outdoor ambient

temperature: 10°C‑25°C

▪ [0-0C]: desired tank temperature when

the outdoor temperature equals or drops below the low ambient temperature: 45°C~[6‑0E]°C

▪ [0-0B]: desired tank temperature when

the outdoor temperature equals or rises above the high ambient temperature: 35°C~[6‑0E]°C

Margin

In domestic hot water operation, the following hysteresis value can be set for the heat pump operation:

# Code Description

[5.D] [6-01] The temperature difference determining

the heat pump OFF temperature.

Range: 0°C~10°C

Example: setpoint (TU)>maximum heat pump temperature–[6‑01] (T

–[6‑01])

HP MAX

WD curve

When weather dependent operation is active the desired tank temperature is determined automatically depending on the averaged outdoor temperature: low outdoor temperatures will result in higher desired tank temperatures as the cold water tap is colder and vice versa.

In case of Schedule only or Schedule + reheat domestic hot water preparation, the storage comfort temperature is weather dependent (according to the weather dependent curve), the storage economic and reheat temperature are NOT weather dependent.

In case of Reheat only domestic hot water preparation, the desired tank temperature is weather dependent (according to the weather dependent curve). During weather dependent operation, the enduser cannot adjust the desired tank temperature on the user interface. Also see "8.3.7Detailed screen with weather-dependent

curve"on page50.

Installer reference guide

BSH Anti‑legionella heater

HP Heat pump. If heating up time by the heat pump takes too

long, auxiliary heating by the anti‑legionella heater can take

place Anti‑legionella heater OFF temperature (TU)

BSH OFF

Maximum heat pump temperature at sensor in domestic

HP MAX

hot water tank

Heat pump OFF temperature (T

HP OFF

Heat pump ON temperature (T

HP ON

Domestic hot water temperature

DHW

TUUser set point temperature (as set on the user interface)

t Time

HP MAX

HP OFF

−[6-01])

−[6-00])

Example: setpoint (TU)≤maximum heat pump temperature–[6‑01] (T

–[6‑01])

HP MAX

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

[6-00]

TU=T

HP OFF

HP MAX

DHW

HP ON

HP Heat pump. If heating up time by the heat pump takes too

long, auxiliary heating by the anti‑legionella heater can take place

Maximum heat pump temperature at sensor in domestic

HP MAX

hot water tank

Heat pump OFF temperature (T

HP OFF

Heat pump ON temperature (T

HP ON

Domestic hot water temperature

DHW

TUUser set point temperature (as set on the user interface)

t Time

HP MAX

HP OFF

−[6-01])

−[6-00])

INFORMATION

The maximum heat pump temperature depends on the ambient temperature. For more information, see the operation range.

8 Configuration

2 Set the first day of your holiday. —

▪ Go to [7.3.2]: From.

▪ Select a date.

▪ Confirm the changes.

3 Set the last day of your holiday. —

▪ Go to [7.3.3]: Till.

▪ Select a date.

▪ Confirm the changes.

Quiet

About quiet mode

You can use quiet mode to decrease the sound of the outdoor unit. However, this also decreases the heating capacity of the system. There are multiple quiet mode levels.

You can:

▪ Completely deactivate quiet mode

▪ Manually activate a quiet mode level until the next scheduled

action

▪ Use and program a quiet mode schedule

8.4.7 User settings

Language

# Code Description

[7.1] N/A Language

Time/date

# Code Description

[7.2] N/A Set the local time and date

INFORMATION

By default, daylight savings time is enabled and clock format is set to 24 hours. If you want to change these settings, you can do this in the menu structure (User settings > Time/date) once the unit is initialised.

Holiday

About holiday mode

During your holiday, you can use the holiday mode to deviate from your normal schedules without having to change them. While holiday mode is active, space heating operation and domestic hot water operation will be turned off. Room frost protection and anti-legionella operation will remain active.

Typical workflow

Using holiday mode typically consists of the following stages:

1 Setting the starting date and ending date of your holiday.

2 Activating the holiday mode.

To check if holiday mode is activated and/or running

is activated on the home screen, holiday mode is active.

To configure the holiday

1 Activate the holiday mode. —

▪ Go to [7.3.1]: User settings > Holiday > Activation.

▪ Select On.

INFORMATION

If the outdoor temperature is below zero, we recommend to NOT use the most quiet level.

To check if quiet mode is active

is displayed on the home screen, quiet mode is active.

To use quiet mode

1 Go to [7.4.1]: User settings > Quiet > Activation.

2 Do one of the following: —

If you want to… Then…

Completely deactivate

Select Off.

quiet mode

Manually activate a quiet mode level

Select the applicable quiet mode level. Example: Most quiet.

Use and program a quiet mode schedule

Select Automatic.

Go to [7.4.2] Schedule and program the schedule. For more information about scheduling, see

"8.3.8Schedule screen: Example"on page50.

Usage example: Baby is sleeping in the afternoon

If you are in the following situation:

▪ You have programmed a quiet mode schedule:

▪ During the night: Most quiet.

▪ During the day: Off to ensure the heating capacity of the

system.

▪ However, during the afternoon the baby is sleeping and you want

it to be quiet.

Then you can do the following:

1 Go to [7.4.1]: User settings > Quiet > Activation.

2 Select Most quiet.

Advantage:

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

The outdoor unit runs in its most quiet level.

Electricity prices and gas price

Only applicable in combination with the bivalent function. See also

"Bivalent"on page71.

# Code Description

[7.5.1] N/A Electricity price > High

[7.5.2] N/A Electricity price > Medium

[7.5.3] N/A Electricity price > Low

[7.6] N/A Gas price

INFORMATION

Electricity price can only be set when bivalent is ON ([9.C.1] or [C-02]). These values can only be set in menu structure [7.5.1], [7.5.2] and [7.5.3]. Do NOT use overview settings.

To set the gas price

1 Go to [7.6]: User settings > Gas price.

2 Select the correct gas price.

3 Confirm the changes.

INFORMATION

Price value ranging from 0.00~990 valuta/kWh (with 2 significant values).

To set the electricity price

1 Go to [7.5.1]/[7.5.2]/[7.5.3]: User settings > Electricity

price > High/Medium/Low.

2 Select the correct electricity price.

3 Confirm the changes.

4 Repeat this for all three electricity prices. —

To set the gas price in case of an incentive per kWh renewable energy

Calculate the value for the gas price with the following formula:

▪ Actual gas price+(Incentive/kWh×0.9)

For the procedure to set the gas price, see "To set the gas price"on

page64.

To set the electricity price in case of an incentive per kWh renewable energy

Calculate the value for the electricity price with following formula:

▪ Actual electricity price+Incentive/kWh

For the procedure to set the electricity price, see "To set the

electricity price"on page64.

Example

This is an example and the prices and/or values used in this example are NOT accurate.

Data Price/kWh

Gas price 4.08

Electricity price 12.49

Renewable heat incentive per kWh

Calculation of the gas price:

Gas price=Actual gas price+(Incentive/kWh×0.9)

Gas price=4.08+(5×0.9)

Gas price=8.58

Calculation of the electricity price:

Electricity price=Actual electricity price+Incentive/kWh

Electricity price=12.49+5

Electricity price=17.49

INFORMATION

Price value ranging from 0.00~990 valuta/kWh (with 2 significant values).

INFORMATION

If no schedule is set, the Electricity price for High is taken into account.

To set the electricity price schedule timer

1 Go to [7.5.4]: User settings > Electricity price >

Schedule.

2 Program the selection using the scheduling screen.

You can set the High, Medium and Low electricity prices according to your electricity supplier.

3 Confirm the changes.

INFORMATION

The values correspond with the electricity price values for High, Medium and Low previously set. If no schedule is set, the electricity price for High is taken into account.

About energy prices in case of an incentive per kWh renewable energy

An incentive can be taken into account when setting the energy prices. Although the running cost can increase, the total operation cost, taking into account the reimbursement will be optimized.

NOTICE

Make sure to modify the setting of the energy prices at the end of the incentive period.

—

Price Value in breadcrumb

Gas: 4.08/kWh [7.6]=8.6

Electricity: 12.49/kWh [7.5.1]=17

8.4.8 Information

Dealer information

The installer can fill in his contact number here.

# Code Description

[8.3] N/A Number that users can call in case of

problems.

Possible read-out information

In menu… You can read out…

[8.1] Energy data Produced energy, consumed

electricity, and consumed gas

[8.2] Malfunction history Malfunction history

[8.3] Dealer information Contact/helpdesk number

[8.4] Sensors Room, tank or domestic hot

water, outside, and leaving water temperature (if applicable)

[8.5] Actuators Status/mode of each actuator

Example: Domestic hot water pump ON/OFF

[8.6] Operation modes Current operation mode

Example: Defrost/oil return mode

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

c f

d f

e g

In menu… You can read out…

[8.7] About Version information about the

system

[8.8] Connection status Information about the connection

status of the unit, the room thermostat and the LAN adapter.

8.4.9 Installer settings

Configuration wizard

To restart the configuration wizard, go to Installer settings > Configuration wizard [9.1].

Domestic hot water

The following setting determines if the system can prepare domestic hot water or not, and which tank is used. This setting is read only.

# Code Description

[9.2.1] [E‑05]

[E-05] Can the system prepare domestic hot water? [E-06] Is a domestic hot water tank installed in the system? [E-07] What kind of domestic hot water tank is installed?

DHW pump

# Code Description

[9.2.2] [D‑02] DHW pump:

Instant hot water Disinfection

(*)

▪ Integrated

(*)

[E‑06]

(*)

[E‑07]

(*) Menu structure setting [9.2.1] replaces the following 3

overview settings:

The anti-legionella heater will also be used during disinfection.

▪ 0: No DHW pump: NOT installed

▪ 1: Instant hot water: Installed for

instant hot water when water is tapped. The user sets the operation timing of the domestic hot water pump using the schedule. Control of this pump is possible with the user interface.

▪ 2: Disinfection: Installed for

disinfection. It runs when the disinfection function of the domestic hot water tank is running. No further settings are needed.

Backup heater

Besides the type of backup heater, the voltage, configuration and capacity must be set on the user interface.

The capacities for the different steps of the backup heater must be set for the energy metering and/or power consumption feature to work properly. When measuring the resistance value of each heater, you can set the exact heater capacity and this will lead to more accurate energy data.

Backup heater type

The backup heater is adapted to be connected to most common European electricity grids. The type of backup heater must be set on the user interface. For units with a built-in backup heater, the type of heater can be viewed but not changed.

# Code Description

[9.3.1] [E‑03] ▪ 0: No heater

▪ 1: External heater

Voltage

The optional external BUH can be set to 230V, 1ph, 230V, 3ph or 400V, 3ph.

# Code Description

[9.3.2] [5‑0D] ▪ 0: 230V, 1ph

▪ 1: 230V, 3ph

▪ 2: 400V, 3ph

Configuration

The backup heater can be configured in different ways. It can be chosen to have a 1-step only backup heater or a backup heater with 2 steps. If 2 steps, the capacity of the second step depends on this setting. It can also be chosen to have a higher capacity of the second step in emergency.

# Code Description

[9.3.3] [4‑0A] ▪ 0: Relay 1

▪ 1: Relay 1 / Relay 1+2

▪ 2: Relay 1 / Relay 2

▪ 3: Relay 1 / Relay 2 Emergency Relay

(a)

1+2

(a) Not available for 3V models.

INFORMATION

Settings [9.3.3] and [9.3.5] are linked. Changing one setting influences the other. If you change one, check if the other is still as expected.

(a)

INFORMATION

a Indoor unit

b Tank

c Domestic hot water pump

d Heater element

e Non‑return valve

f Shower

g Cold water

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

During normal operation, the capacity of the second step of the backup heater at nominal voltage is equal to [6‑03]+[6‑04].

Installer reference guide

8 Configuration

INFORMATION

If [4‑0A]=3 and emergency mode is active, the power usage of the backup heater is maximal and equal to 2×[6‑03]+[6‑04].

INFORMATION

Only for systems with integrated domestic hot water tank: If the storage temperature set point is higher than 50°C, Daikin recommends NOT to disable the backup heater second step because it will have a big impact on the required time for the unit to heat up the domestic hot water tank.

Capacity step 1

# Code Description

[9.3.4] [6‑03] ▪ The capacity of the first step of the

backup heater at nominal voltage.

Additional capacity step 2

# Code Description

[9.3.5] [6‑04] ▪ The capacity difference between the

second and first step of the backup heater at nominal voltage. Nominal value depends on backup heater configuration.

Equilibrium

# Code Description

[9.3.6] [5-00] Equilibrium: Is backup heater operation

allowed above equilibrium temperature during space heating operation?

▪ 1: NOT allowed

▪ 0: Allowed

[9.3.7] [5-01] Equilibrium temperature: Outdoor

temperature below which operation of the backup heater is allowed.

Range: –15°C~35°C

Operation

# Code Description

[9.3.8] [4‑00] Backup heater operation:

▪ 0: Restricted

▪ 1: Allowed

▪ 2: Only DHW Enabled for domestic hot

water, disable for space heating

INFORMATION

Only for systems with integrated domestic hot water tank: If backup heater operation during space heating needs to be limited but can be allowed for domestic hot water operation, then set [4‑00] to 2.

Anti-legionella heater

Capacity

The capacity of the anti-legionella heater must be set for the energy metering and/or power consumption control feature to work properly. When measuring the resistance value of the anti-legionella heater, you can set the exact heater capacity and this will lead to more accurate energy data.

# Code Description

[9.4.1] [6‑02] Capacity [kW]. Only applies to domestic

hot water tank with an internal antilegionella heater. The capacity of the anti-legionella heater at nominal voltage.

Range: 0~10kW

BSH allowance schedule

Program when the anti-legionella heater can operate. You can set a schedule for the anti-legionella heater here using the schedule screen. Two actions per day are allowed in a week schedule. For more information, see "8.3.8 Schedule screen: Example" on

page50.

Example: Only allow the anti-legionella heater to operate during the night.

BSH eco timer

# Code Description

[9.4.3] [8-03] Anti-legionella heater delay timer.

Start-up delay time for the anti-legionella heater when domestic hot water mode is active.

▪ When domestic hot water mode is

NOT active, the delay time is 20minutes.

▪ The delay time starts from anti-

legionella heater ON temperature.

▪ By adapting the anti-legionella heater

delay time versus the maximum running time, you can find an optimal balance between the energy efficiency and the heat up time.

▪ If the anti-legionella heater delay time

is set too high, it might take a long time before the domestic hot water reaches its set temperature.

▪ The setting [8‑03] is only meaningful if

setting [4‑03]=1. Setting [4‑03]=0/2/3/4 limits the anti-legionella heater automatically in relation to heatpump operation time in domestic water heating mode.

▪ Make sure that [8‑03] is always in

relation with the maximum running time [8‑01].

Range: 20~95 minutes

Operation

# Code Description

[9.4.4] [4-03] Defines the operation permission of the

anti-legionella heater depending on ambient, domestic hot water temperature or operation mode of heat pump. This setting is only applicable in reheat mode for applications with separate domestic hot water tank. When setting [4‑03]=1/2/3/4, the anti-legionella heater operation can still be restricted by the anti-legionella heater allowance schedule.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

# Code Description

[9.4.4] [4-03] ▪ 0: Anti-legionella heater operation is

NOT allowed except for "Disinfection function" and "Powerful domestic water heating". Only use this in case the heat pump capacity can cover the heating requirements of the house and domestic hot water during the complete heating season. The anti-legionella heater will not be allowed to operate when Ta<[5‑03] and [5‑02]=1. The domestic hot water temperature can be maximum the heat pump OFF temperature.

[9.4.4] [4-03] ▪ 1: Anti-legionella heater operation is

allowed when required.

[9.4.4] [4-03] ▪ 2: The anti-legionella heater is allowed

outside the operation range of the heat pump for domestic hot water operation. Anti-legionella heater operation is only allowed if:

▪ Ambient temperature is out of the

operating range: Ta<[5‑03] or Ta>35°C

The anti-legionella heater is only allowed to operate when Ta<[5‑03] if space heating priority is enabled ([5‑02]=1).

▪ Domestic hot water temperature is

2°C lower than the heatpumpOFF temperature.

If bivalent operation is enabled ([C‑02]=1) and permission signal for auxiliary boiler is ON, the anti-legionella heater will be restricted even when Ta<[5‑03].

9.4.4 [4-03] ▪ 3: The anti-legionella heater is allowed when the heat pump is NOT active in domestic hot water operation. Same as setting 1, but simultaneous heat pump domestic hot water operation and anti-legionella heater operation is not allowed.

9.4.4 [4-03] ▪ 4: Anti-legionella heater operation is NOT allowed except for "Disinfection function". Only use this in case the capacity of the heat pump can cover the heating requirements of the house and domestic hot water over the complete heating season. The anti-legionella heater will not be allowed to operate when Ta<[5‑03] and [5‑02]=1. The domestic hot water temperature can be maximum the heat pump OFF temperature.

Emergency

When the heat pump fails to operate, the optional backup heater and anti-legionella heater can serve as an emergency heater and either automatically or non-automatically take over the heat load.

▪ When auto emergency is set to Automatic and a heat pump failure

occurs, the optional backup heater will automatically take over the heat load, and the anti-legionella heater will automatically take over the domestic hot water production.

▪ When auto emergency is set to Manual and a heat pump failure

occurs, the domestic hot water and space heating operation will stop and need to be recovered manually via the user interface. To recover operation manually, go to the Malfunctioning main menu screen, where the user interface will then ask you to confirm whether the optional backup heater or anti-legionella heater can take over the heat load or not.

We recommend to set Emergency to Automatic if the house is unattended for longer periods.

# Code Description

[9.5] N/A ▪ 0: Manual

▪ 1: Automatic

INFORMATION

The auto emergency setting can be set in the menu structure of the user interface only.

INFORMATION

If [4‑03]=1 or 3, then Emergency=Manual is not applicable for the anti-legionella heater.

INFORMATION

If a heat pump failure occurs and Emergency is set to Manual, the room frost protection function, the underfloor heating screed dryout function, and the water pipe antifreeze function will remain active even if the user does NOT confirm emergency operation.

Balancing

Priorities

For systems with an integrated domestic hot water tank

# Code Description

[9.6.1] [5‑02] Space heating priority: Defines whether

backup heater (if applicable) will assist the heat pump during domestic hot water operation.

Enable this function to shorten tank heating operation time and interruption of the space heating cycle.

This setting MUST always be 1.

[5‑01] Equilibrium temperature and [5‑03] Space heating priority temperature are related to backup heater (if applicable). So, you must set [5‑03] equal or a few degrees higher than [5‑01].

If the backup heater operation is limited ([4‑00]=0) and the outdoor temperature is lower than setting [5‑03], the domestic hot water will not be heated with the optional backup heater.

[9.6.2] [5‑03] Priority temperature: Defines the

outdoor temperature which below the domestic hot water will be heated by anti-legionella heater only.

Range: –15°C~35°C

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

[8-01] [8-02]

[8-01]

[5-03] [4-02]

[8-02]

[8-01]+

[8-04]

# Code Description

[9.6.3] [5-04] Offset BSH setpoint: Set point

correction for domestic hot water temperature: set point correction for the desired domestic hot water temperature, to be applied at low outdoor temperature when space heating priority is enabled. The corrected (higher) set point will make sure that the total heat capacity of the water in the tank remains approximately unchanged, by compensating for the colder bottom water layer of the tank (because the heat exchanger coil is not operational) with a warmer top layer.

Range: 0°C~20°C

Timers for simultaneous space and domestic hot water operation request

# Code Description

[9.6.4] [8-02] Anti-recycle timer: Minimum time

between two cycles for domestic hot water. The actual anti-recycling time also depends on setting [8-04].

Range: 0~10 hours

Remark: The minimum time is 0.5 hours even when the selected value is 0.

[9.6.5] N/A Minimum running timer:

Do NOT change.

[9.6.6] [8-01] Maximum running timer for domestic hot

water operation. Domestic hot water heating stops even when the target domestic hot water temperature is NOT reached. The actual maximum running time also depends on setting [8-04].

▪ When Control=Room thermostat: This

preset value is only taken into account if there is a request for space heating. If there is NO request for space heating, the tank is heated until the setpoint has been reached.

▪ When Control≠Room thermostat: This

preset value is always taken into account.

Range: 5~95 minutes

[9.6.7] [8-04] Additional timer: Additional running time

for the maximum running time depending on the outdoor temperature [4-02].

Range: 0~95 minutes

[8-04]: Additional timer at [4-02]

TAAmbient (outdoor) temperature

t Time

Anti-recycle timer Maximum running time domestic hot water

Water pipe freeze prevention

Only relevant for installations with water piping outdoors. This function tries to protect outdoor water piping from freezing.

# Code Description

[9.7] [4-04] Water pipe freeze prevention:

▪ 0: Intermittent

▪ 1: Continuous

▪ 2: Off

NOTICE

If the system does NOT contain a backup heater, then:

▪ Make sure that the room antifrost control is activated

([2-06]=1).

▪ Do NOT change the default room antifrost temperature

[2-05].

▪ Make sure that the water pipe freeze prevention is

activated ([4-04]≠2).

Benefit kWh power supply

INFORMATION

[8-02]: Anti-recycle timer

Installer reference guide

1 Heat pump domestic water heating mode (1=active, 0=not

2 Hot water request for heat pump (1=request, 0=no request)

t Time

active)

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

# Code Description

[9.8.1] [D-01] Connection to a Benefit kWh power

supply or a Safety thermostat

▪ 0 No: The outdoor unit is connected to

a normal power supply.

▪ 1 Open: The outdoor unit is connected

to a preferential kWh rate power supply. When the preferential kWh rate signal is sent by the electricity company, the contact will open and the unit will go in forced off mode. When the signal is released again, the voltage-free contact will close and the unit will restart operation. Therefore, always enable the auto restart function.

▪ 2 Closed: The outdoor unit is

connected to a preferential kWh rate power supply. When the preferential kWh rate signal is sent by the electricity company, the contact will close and the unit will go in forced off mode. When the signal is released again, the voltage-free contact will open and the unit will restart operation. Therefore, always enable the auto restart function.

▪ 3 Safety thermostat: A safety

thermostat is connected to the system (normal closed contact)

[9.8.2] [D-00] Allow heater: Which heaters are allowed

to operate during preferential kWh rate power supply?

▪ 0 No: None

▪ 1 Only BSH: Anti-legionella heater

only

▪ 2 Only BUH: Backup heater only (if

applicable)

▪ 3 All: All heaters

See table below.

Setting2 is only meaningful if the preferential kWh rate power supply is of type1 or indoor unit is connected to a normal kWh rate power supply (via X2M/5‑6) and the optional backup heater is NOT connected to the preferential kWh rate power supply.

[9.8.3] [D-05] Allow pump:

▪ 0 No: Pump is forced off

▪ 1 Yes: No limitation

# Code Description

[9.9.1] [4-08] Power consumption control:

▪ 0 No: Disabled.

▪ 1 Continuous: Enabled: You can set

one power limitation value (in A or kW) to which the system power consumption will be limited for all the time.

▪ 2 Inputs: Enabled: You can set up to

four different power limitation values (in A or kW) to which the system power consumption will be limited when the corresponding digital input asks.

[9.9.2] [4-09] Type:

▪ 0 Amp: The limitation values are set

in A.

▪ 1 kW: The limitation values are set in

kW.

Limit when [9.9.1]=Continuous and [9.9.2]=Amp:

# Code Description

[9.9.3] [5-05] Limit: Only applicable in case of full

time current limitation mode.

0A~50A

Limits when [9.9.1]=Inputs and [9.9.2]=Amp:

# Code Description

[9.9.4] [5-05] Limit 1: 0A~50A

[9.9.5] [5-06] Limit 2: 0A~50A

[9.9.6] [5-07] Limit 3: 0A~50A

[9.9.7] [5-08] Limit 4: 0A~50A

Limit when [9.9.1]=Continuous and [9.9.2]=kW:

# Code Description

[9.9.8] [5-09] Limit: Only applicable in case of full

time power limitation mode.

0kW~20kW

Limits when [9.9.1]=Inputs and [9.9.2]=kW:

# Code Description

[9.9.9] [5-09] Limit 1: 0kW~20kW

[9.9.A] [5-0A] Limit 2: 0kW~20kW

[9.9.B] [5-0B] Limit 3: 0kW~20kW

[9.9.C] [5-0C] Limit 4: 0kW~20kW

[D‑00] Anti-legionella

heater

0 Forced OFF Forced OFF Forced OFF

1 Permitted

2 Forced OFF Permitted

3 Permitted

Backup heater

(if applicable)

Compressor

Power consumption control

See "5 Application guidelines" on page10 for detailed information about this functionality.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

Priority heater

# Code Description

[9.9.D] [4-01] Power consumption control

DISABLED [4‑08]=0

▪ 0 None : Backup heater and booster

heater can operate simultaneously.

▪ 1 Booster heater: The booster heater

is prioritized.

▪ 2 Backup heater: The backup heater

is prioritized.

Power consumption control ENABLED [4‑08]=1/2

▪ 0 None : Depending on the power

limitation level, the booster heater will be limited first, before the backup heater is limited.

▪ 1 Booster heater: Depending on the

power limitation level, the backup heater will be limited first, before the booster heater is limited.

▪ 2 Backup heater: Depending on the

power limitation level, the booster heater will be limited first, before the backup heater is limited.

Note: In case power consumption control is DISABLED (for all models) the setting [4‑01] defines whether backup heater and booster heater can operate simultaneously, or if the booster heater/ backup heater has priority over the backup heater/booster heater.

In case power consumption control is ENABLED, the setting [4‑01] defines the priority of the electrical heaters depending on applicable limitation.

INFORMATION

Anti-legionella heater. In the menu structure the term

"Booster heater" is used. However, this is actually an antilegionella heater.

Energy metering

If energy metering is performed by the use of external power meters, configure the settings as described below. Select the pulse frequency output of each power meter in accordance with the power meter specifications. It is possible to connect up to 2 power meters with different pulse frequencies. If only 1 or no power meter is used, select 'None' to indicate the corresponding pulse input is NOT used.

# Code Description

[9.A.1] [D‑08] Electricity meter 1:

▪ 0 None: NOT installed

▪ 1 1/10kWh: Installed

▪ 2 1/kWh: Installed

▪ 3 10/kWh: Installed

▪ 4 100/kWh: Installed

▪ 5 1000/kWh: Installed

# Code Description

[9.A.2] [D‑09] Electricity meter 2:

▪ 0 None: NOT installed

▪ 1 1/10kWh: Installed

▪ 2 1/kWh: Installed

▪ 3 10/kWh: Installed

▪ 4 100/kWh: Installed

▪ 5 1000/kWh: Installed

Sensors

External sensor

# Code Description

[9.B.1] [C–08] External sensor : When an optional

external ambient sensor is connected, the type of the sensor must be set.

▪ 0 None : NOT installed. The thermistor

in the user interface and in the outdoor unit are used for measurement.

▪ 1 Outdoor: Connected to PCB of the

indoor unit measuring the outdoor temperature. Remark: For some functionality, the temperature sensor in the outdoor unit is still used.

▪ 2 Room: Connected to PCB of the

indoor unit measuring the indoor temperature. The temperature sensor in the user interface is NOT used anymore. Remark: This value has only meaning in room thermostat control.

Ext. amb. sensor offset

ONLY applicable in case an external outdoor ambient sensor is connected and configured.

You can calibrate the external outdoor ambient temperature sensor. It is possible to give an offset to the thermistor value. This setting can be used to compensate for situations where the external outdoor ambient sensor cannot be installed on the ideal installation location.

# Code Description

[9.B.2] [2-0B] Ext. amb. sensor offset: Offset on the

ambient temperature measured on the external outdoor temperature sensor.

▪ –5°C~5°C, step 0.5°C

Averaging time

The average timer corrects the influence of ambient temperature variations. The weather-dependent set point calculation is done on the average outdoor temperature.

The outdoor temperature is averaged over the selected time period.

# Code Description

[9.B.3] [1-0A] Averaging time:

▪ 0: No averaging

▪ 1: 12hours

▪ 2: 24hours

▪ 3: 48hours

▪ 4: 72hours

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8 Configuration

YC Y1 Y2 Y3 Y4

X1 X2 X3 X4

OFF ON

X2M

SS1

X1M

[C-03]

[C-04]

calc

[C-03]+[C-04]

3°C

[C-03]

Bivalent

Only applies to indoor unit installations with an auxiliary boiler (alternating operation, connected in parallel). The purpose of bivalent operation is to determine which heating source can/will provide the space heating, either the indoor unit or an auxiliary boiler.

# Code Description

[9.C.1] [C-02] Bivalent: Indicates if the space heating is

also performed by means of another heat source than the system.

▪ 0 No: Not installed

▪ 1 Yes: Installed. The auxiliary boiler

(gas boiler, oil burner) will operate when the outdoor ambient temperature is low. During bivalent operation, the heat pump is turned off. Set this value in case an auxiliary boiler is used.

▪ If Bivalent is enabled: When the outdoor temperature drops below

the bivalent ON temperature (fixed or variable based on energy prices), the space heating by the indoor unit stops automatically and the permission signal for the auxiliary boiler is active.

▪ If Bivalent is disabled: Space heating is only done by the indoor

unit within the operation range. The permission signal for the auxiliary boiler is always inactive.

INFORMATION

▪ The combination of setting [4‑03]=0/2 with bivalent

operation at low outdoor temperature can result in domestic hot water shortage.

▪ The bivalent operation function has no impact on the

domestic water heating mode. The domestic hot water is still and only heated by the indoor unit.

▪ The permission signal for the auxiliary boiler is located

on the EKRP1HB (digital I/O PCB). When it is activated, the contact X1, X2 is closed and open when it is deactivated. See illustration below for the schematic location of this contact.

Set all electricity prices ([7.5.1]~[7.5.3]) to "0" in the menu structure. Also set the following values:

NOTICE

Do NOT use overview settings!

# Code Description

[9.C.3] [C-03] Bivalent ON temperature: Defines the

outdoor temperature below which the permission signal for the auxiliary boiler is active (X1 and X2 on EKRP1HB is closed) and space heating by indoor unit is stopped.

[9.C.4] [C-04] Hysteresis: Defines the temperature

difference between the ON temperature and the OFF temperature.

Permission signal X1–X2

TAOutdoor temperature

[C-03] Bivalent ON temperature (fixed)

a Auxiliary boiler active b Auxiliary boiler inactive

Possibility 2: Based on the outdoor temperature and energy prices

The installer can set a temperature range [C‑04]. Depending on the energy prices, a calculated point T

varies within a range between

calc

[C‑03] and [C‑03]+[C‑04]. It is recommended to choose [C‑04] bigger than the default value to have an optimal operation when choosing possibility 2.

Electricity and gas prices

# Code Description

[7.5.1] N/A Electricity price > High

[7.5.2] N/A Electricity price > Medium

[7.5.3] N/A Electricity price > Low

[7.6] N/A Gas price

INFORMATION

Electricity price can only be set when bivalent is ON ([9.C.1] or [C-02]). These values can only be set in menu structure [7.5.1], [7.5.2] and [7.5.3]. Do NOT use overview settings.

When the outdoor temperature reaches below the T

point, then

calc

the permission signal for the auxiliary boiler becomes active. To prevent too much switching, there is a hysteresis of 3°C.

Boiler efficiency

Depending on the used boiler, this should be chosen as follows:

# Code Description

[9.C.2] [7‑05] ▪ 0: Very high

▪ 1: High

▪ 2: Medium

▪ 3: Low

▪ 4: Very low

Possibility 1: Based on the outdoor temperature

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

# Code Description

[9.C.3] [C-03] Bivalent ON temperature: Below this

temperature bivalent operation will always be ON.

[9.C.4] [C-04] Operation range between which T

calculated.

Permission signal X1–X2 (EKRP1HB)

TAOutdoor temperature

Bivalent ON temperature (variable). Below this

calc

temperature, the auxiliary boiler will always be ON. T never go below [C‑03] or above [C‑03]+[C‑04].

a Auxiliary boiler active

Installer reference guide

calc

can

calc

8 Configuration

b Auxiliary boiler inactive

CAUTION

Make sure to observe all rules mentioned in application guideline 5 when bivalent operation function is enabled.

Daikin shall NOT be held liable for any damage resulting from failure to observe this rule.

Alarm output

# Code Description

[9.D] [C–09] Alarm output: Indicates the logic of the

alarm output on the digital I/O PCB during malfunctioning.

▪ 0 Abnormal: The alarm output will be

powered when an alarm occurs. By setting this value, a distinction is made between the detection of an alarm, and the detection of a power failure.

▪ 1 Normal : The alarm output will NOT

be powered when an alarm occurs.

See also table below (Alarm output logic).

Alarm output logic

[C-09] Alarm No alarm No power

supply to unit

0 Closed output Open output Open output

1 Open output Closed output

Auto restart

When power returns after a power supply failure, the auto restart function reapplies the remote controller settings at the time of the power failure. Therefore, it is recommended to always enable the function.

If the preferential kWh rate power supply is of the type that power supply is interrupted, always enable the auto restart function. Continuous indoor unit control can be guaranteed independent of the preferential kWh rate power supply status, by connecting the indoor unit to a normal kWh rate power supply.

Disable protections

INFORMATION

The software is equipped with an "installer-on-site" mode ([9.G]: Disable protections), that disables automatic operation by the unit. At first installation, setting Disable protections is by default set to Yes, meaning automatic operation is disabled. All protective functions are then disabled. If the user interface home pages are off, the unit will NOT operate automatically. To enable automatic operation and the protective functions, set Disable protections to No.

36 hours after the first power-on, the unit will automatically set Disable protections to No, ending "installer-on-site" mode and enabling the protective functions. If – after first installation – the installer returns to the site, the installer has to set Disable protections to Yes manually.

# Code Description

[9.G] N/A Disable protections

▪ 0: No

▪ 1: Yes

Forced defrost

Manually start a defrost operation.

# Code Description

[9.H] N/A Do you want to start a defrost operation?

▪ Back

▪ OK

Overview field settings

All settings can be done using the menu structure. If for any reason it is required to change a setting using the overview settings, then the overview settings can be accessed in the field settings overview [9.I]. See "To modify an overview setting"on page47.

# Code Description

[9.E] [C-09] Auto restart:

▪ 0: Manual

▪ 1: Automatic

Power saving function

Defines whether the outdoor unit power supply can be interrupted (internally by indoor unit control) during stand-still conditions (no space heating/cooling nor domestic hot water demand). The final decision to allow power interruption of the outdoor unit during standstill depends on the ambient temperature, compressor conditions and minimum internal timers.

To enable the power saving function setting, [E‑08] needs to be enabled on the user interface.

# Code Description

[9.F] [E‑08] Power saving function for outdoor unit:

▪ 0: No

▪ 1: Yes

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

8.5 Menu structure: Overview user settings

[2]

Main zone

Schedule Heating schedule Setpoint mode Heating WD curve

[3]

Additional zone

Schedule Heating schedule Setpoint mode Heating WD curve

[5]

Tank

Powerful operation Comfort setpoint Eco setpoint Reheat setpoint Schedule

[8.1]

Energy data

Electricity input Produced heat

[7]

User settings

Language Time/date Holiday Quiet Electricity price Gas price

[C]

Operation

Room Space heating/cooling Tank

[B]

User profile

[7.3]

Holiday

Activation From Till

[7.4]

Quiet

Activation Schedule

[7.5]

Electricity price

High Medium Low Schedule

[7.2]

Time/date

Hours Minutes Year Month Day Daylight savings time Format

[1.4]

Antifrost

Activation Room setpoint

[1.5]

Setpoint range

Heating minimum Heating maximum

[1]

Room

Schedule Heating schedule Antifrost Setpoint range Room sensor offset

[4]

Space heating/cooling

Operation mode

[8]

Information

Energy data

Malfunction history

Dealer information

Sensors Actuators Operation modes About Connection status

8 Configuration

Setpoint screen

INFORMATION

Depending on the selected installer settings and unit type, settings will be visible/invisible.

INFORMATION

Anti-legionella heater. In the menu structure the term

"Booster heater" is used. However, this is actually an antilegionella heater.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

8 Configuration

[9.C]

Bivalent

Bivalent Boiler efficiency Temperature Hysteresis

[9.B]

Sensors

External sensor Ext. amb. sensor offset Averaging time

[9.6] Balancing

Space heating priority Priority temperature Offset BSH setpoint

Minimum running timer

Anti-recycle timer

Maximum running timer Additional timer

[9.3]

Backup heater

Backup heater type Voltage Configuration

Additional capacity step 2

Capacity step 1

Equilibrium Equilibrium temperature Operation

[9.8] Benefit kWh power supply

Benefit kWh power supply Allow heater Allow pump

[9.4]

Booster heater

Capacity BSH allowance schedule BSH eco timer Operation

[9.2]

Domestic hot water

Domestic hot water DHW pump DHW pump schedule Solar

[9.9] Power consumption control

Power consumption control Type Limit Limit 1 Limit 2 Limit 3 Limit 4 Priority heater

Electricity meter 2

Electricity meter 1

[9.A] Energy metering

[9]Installer settings

Configuration wizard Domestic hot water Backup heater Booster heater Emergency Balancing Water pipe freeze prevention Benefit kWh power supply Power consumption control Energy metering Sensors Bivalent Alarm output

Auto restart Power saving function Disable protections

Overview field settings

Forced defrost

8.6 Menu structure: Overview installer settings

INFORMATION

Solar kit settings are shown but are NOT applicable for this unit. Settings shall NOT be used or changed.

INFORMATION

Depending on the selected installer settings and unit type, settings will be visible/invisible.

INFORMATION

Anti-legionella heater. In the menu structure the term

"Booster heater" is used. However, this is actually an antilegionella heater.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

9 Commissioning

INFORMATION

9.1 Overview: Commissioning

This chapter describes what you have to do and know to commission the system after it is configured.

Typical workflow

Commissioning typically consists of the following stages:

1 Checking the "Checklist before commissioning".

2 Performing an air purge.

3 Performing a test run for the system.

4 If necessary, performing a test run for one or more actuators.

5 If necessary, performing an underfloor heating screed dryout.

9.2 Precautions when commissioning

INFORMATION

During the first running period of the unit, the required power may be higher than stated on the nameplate of the unit. This phenomenon is caused by the compressor, that needs a continuous run time of 50 hours before reaching smooth operation and stable power consumption.

NOTICE

NEVER operate the unit without thermistors and/or pressure sensors/switches. Burning of the compressor might result.

NOTICE

Do NOT operate the unit until the refrigerant piping is complete (when operated this way, the compressor will break).

The following field wiring has been carried out according to this document and the applicable legislation:

▪ Between the local supply panel and the outdoor unit

▪ Between indoor unit and outdoor unit

▪ Between the local supply panel and the indoor unit

▪ Between the indoor unit and the valves (if applicable)

▪ Between the indoor unit and the room thermostat (if

applicable)

The system is properly earthed and the earth terminals are tightened.

The fuses or locally installed protection devices are installed according to this document, and have NOT been bypassed.

The power supply voltage matches the voltage on the identification label of the unit.

There are NO loose connections or damaged electrical components in the switchbox.

There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units.

Only if you use the optional backup heater:

Depending on the backup heater type, backup heater circuit breaker F1B (on the switch box of the backup heater) is turned ON.

The anti-legionella heater circuit breaker F2B (field supply) is turned ON.

There are NO refrigerant leaks.

The refrigerant pipes (gas and liquid) are thermally insulated.

The correct pipe size is installed and the pipes are properly insulated.

There is NO water leak inside the indoor unit.

The shut-off valves are properly installed and fully open.

The stop valves (gas and liquid) on the outdoor unit are fully open.

The air purge valve is open (at least 2 turns).

The pressure relief valve purges water when opened.

The minimum water volume is guaranteed in all conditions. See "To check the water volume" in

"6.4Preparing water piping"on page25.

The domestic hot water tank is filled completely.

9.3 Checklist before commissioning

After the installation of the unit, first check the following items. Once all below checks are fulfilled, the unit MUST be closed, ONLY then can the unit be powered up.

You read the complete installation instructions, as described in the installer reference guide.

The indoor unit is properly mounted.

Only if you use the optional backup heater:

The backup heater is properly mounted.

The outdoor unit is properly mounted.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

9.4 Checklist during commissioning

To perform an air purge.

To perform a test run.

To perform an actuator test run.

Underfloor screed dryout function

The underfloor screed dryout function is started (if necessary).

Installer reference guide

9 Commissioning

9.4.1 To check the minimum flow rate

1 Confirm according to the hydraulic configuration

which space heating loops can be closed due to mechanical, electronic, or other valves.

2 Close all space heating loops that can be closed

(see previous step).

3 Start the pump test run operation (see "9.4.4To

perform an actuator test run"on page77).

4 During pump test run operation, go to Sensors.

5 Select the flow rate information. During test run

operation, the unit can operate below the minimum required flow rate.

6 Modify the bypass valve setting to reach the

minimum required flow rate + 2l/min.

Minimum required flow rate

12l/min

—

9.4.2 Air purge function

When commissioning and installing the unit, it is very important to remove all air in the water circuit. When the air purge function is running, the pump operates without actual operation of the unit and the removal of air in the water circuit will start.

NOTICE

Before starting the air purge, open the safety valve and check if the circuit is sufficiently filled with water. Only if water escapes the valve after opening it, you can start the air purge procedure.

There are 2 modes for purging air:

▪ Manual: the unit operates with a fixed pump speed and in a fixed

or custom position of the 3-way valve. The custom position of the 3-way valve is a more than helpful feature to remove all air from the water circuit in the space heating or the domestic hot water heating mode. Air purge must be performed for both the space heating and the domestic hot water circuit. The operation speed of the pump (slow or quick) can also be set.

▪ Automatic: the unit automatically changes the pump speed and

switches the position of the 3-way valve between the space heating and the domestic hot water heating mode.

Typical workflow

Purging the air from the system should consist of:

1 Performing a manual air purge

2 Performing an automatic air purge

INFORMATION

Start by performing a manual air purge. When almost all the air is removed, perform an automatic air purge. If necessary, repeat performing the automatic air purge until you are sure that all air is removed from the system. During air purge function, pump speed limitation [9‑0D] is NOT applicable.

The air purge function automatically stops after 30minutes.

To perform a manual air purge

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to [A.3]: Commissioning > Air purge.

3 In the menu, set Type = Manual.

—

4 Select Start air purge.

5 Select OK to confirm.

Result: The air purge starts. It will stop automatically

when air purge cycle is finished.

6 During manual operation, you can change the

desired pump speed. The position of the 3-way valve must be changed between space heating and domestic hot water. To change the settings during the air purge, open the menu and go to Settings.

▪ Scroll to Circuit and set it to Space/Tank.

▪ Scroll to Pump speed and set it to Low/High.

7 To stop the air purge manually: —

1 Go to Stop air purge.

2 Select OK to confirm.

To perform an automatic air purge

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to [A.3]: Commissioning > Air purge.

3 In the menu, set Type = Automatic.

4 Select Start air purge.

5 Select OK to confirm.

Result: The air purge starts. It stops automatically

when done.

6 To stop the air purge manually: —

1 Go to Stop air purge.

2 Select OK to confirm.

—

9.4.3 To perform an operation test run

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to [A.1]: Commissioning > Operation test run.

3 Select a test from the list. Example: Heating.

4 Select OK to confirm.

Result: The test run starts. It stops automatically

when done (±30min).

To stop the test run manually: —

1 Go to Stop test run.

2 Select OK to confirm.

INFORMATION

When starting up the system in a cold climate, and NO backup heater kit was installed, it may be required to start up with a small water volume. To do this, gradually open the heat emitters. As a result, the water temperature will gradually rise. Monitor the inlet water temperature ([6.1.6] in the menu structure) and make sure it does NOT drop below 15°C.

—

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

9 Commissioning

25°C (1)

35°C (2)

24h (1) 36h (2)

If the installation of the unit has been done correctly, the unit will start up during test operation in the selected operation mode. During test mode, the correct operation of the unit can be checked by monitoring its leaving water temperature (heating/cooling mode) and tank temperature (domestic hot water mode).

To monitor the temperature:

1 Go to Sensors.

2 Select the temperature information.

9.4.4 To perform an actuator test run

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

Purpose of the actuator test run is to confirm the operation of the different actuators (e.g., when you select Pump, a test run of the pump will start).

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to [A.2]: Commissioning > Actuator test run.

3 Select a test from the list. Example: Pump.

4 Select OK to confirm.

Result: The actuator test run starts. It stops

automatically when done (±30min).

To stop the test run manually: —

1 Go to Stop test run.

2 Select OK to confirm.

—

Possible actuator test runs

▪ Booster heater test

▪ Backup heater 1 test (if applicable)

▪ Backup heater 2 test (if applicable)

▪ Pump test

INFORMATION

Make sure that all air is purged before executing the test run. Also avoid disturbances in the water circuit during the test run.

▪ Shut off valve test

▪ Diverter valve test

▪ Bivalent signal test

▪ Alarm output test

▪ C/H signal test

▪ DHW pump test

INFORMATION

▪ If Emergency is set to Manual ([A.6.C]=0), and the unit

is triggered to start emergency operation, the user interface will ask confirmation before starting. The underfloor heating screed dryout function is active even if the user does NOT confirm emergency operation.

▪ During underfloor heating screed dryout, pump speed

limitation [9‑0D] is NOT applicable.

NOTICE

The installer is responsible for:

▪ contacting the screed manufacturer for the initial

heating instructions to avoid cracking the screed,

▪ programming the underfloor heating screed dryout

schedule according to the above instruction of the screed manufacturer,

▪ checking the proper functioning of the setup on a

regular basis,

▪ selecting the correct program complying with the type

of the used screed of the floor.

NOTICE

To perform an underfloor heating screed dryout, room frost protection needs to be disabled ([2‑06]=0). By default, it is enabled ([2‑06]=1). However, due to the "installer-on-site" mode (see "Commissioning"), room frost protection will be automatically disabled for 36 hours after the first power-on.

If the screed dryout still needs to be performed after the first 36 hours of power-on, manually disable room frost protection by setting [2‑06] to "0", and KEEP it disabled until the screed dryout has finished. Ignoring this notice will result in cracking of the screed.

NOTICE

For the underfloor heating screed dryout to be able to start, make sure the following settings are met:

▪ [4‑00]=1

▪ [C‑02]=0

▪ [D‑01]=0

▪ [4‑08]=0

▪ [4‑01]≠1

The installer can program up to 20 steps. For each step he needs to enter:

1 the duration in hours, up to 72hours,

2 the desired leaving water temperature.

Example:

9.4.5 Underfloor heating screed dryout

This function is used for drying out the screed of an underfloor heating system very slowly during the construction of a house. It allows the installer to program and execute this program.

Conditions: Make sure all operation is disabled. Go to the Operation menu and turn off Room, Space heating/cooling and Tank operation.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

T Desired leaving water temperature (15~55°C)

t Duration (1~72h) (1) Action step 1 (2) Action step 2

Installer reference guide

10 Hand-over to the user

To program an underfloor heating screed dryout schedule

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to the programming screen [A.4.2]:

Commissioning > UFH screed dryout > Program.

3 Program the schedule:

To add a new step, select an empty line and change its value. To delete a step and all steps below it, decrease the duration to "–".

▪ Scroll through the schedule.

▪ Adjust the duration (between 1 and 72 hours) and

temperatures (between 15°C and 55°C).

4 Press the left dial to save the schedule.

—

To perform an underfloor heating screed dryout

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

1 Set the user permission level to Installer. See "To

change the user permission level"on page47.

2 Go to [A.4]: Commissioning > UFH screed dryout.

3 Set a dryout program: go to Program and use the

UFH screed dryout programming screen.

4 Select OK to confirm.

Result: The underfloor heating screed dryout starts.

It stops automatically when done.

To stop the test run manually: —

1 Go to Stop UFH screed dryout.

2 Select OK to confirm.

—

To read out the status of an underfloor heating screed dryout

Prerequisite: You are performing an underfloor heating screed

dryout.

1 Press .

2 A graph highlighting the current step of the screed dryout

schedule, the total remaining time, and the current desired leaving water temperature will be displayed.

Press the left dial to access the menu structure and view the status of sensors and actuators and to adjust the current program.

To stop an underfloor heating screed dryout

When the program is stopped by an error, an operation switch off, or a power failure, the U3 error will be displayed on the user interface. To resolve the error codes, see "12.4 Solving problems based on

error codes"on page85.

1 Start in the UFH screed dryout screen. —

2 Open the menu and select Stop UFH screed dryout.

3 Select OK to confirm.

Result: The underfloor heating screed dryout is

stopped.

When the program is stopped due to an error, an operation switchoff, or a power failure, you can read out the underfloor heating screed dryout status:

1 Go to [A.4.3]: Commissioning > UFH screed dryout >

Status

2 You can read out the value here: Stopped at + the

step where the underfloor screed dryout was stopped.

3 Modify and restart the execution of the program. —

—

10 Hand-over to the user

Once the test run is finished and the unit operates properly, please make sure the following is clear for the user:

▪ Fill in the installer setting table (in the operation manual) with the

actual settings.

▪ Make sure that the user has the printed documentation and ask

him/her to keep it for future reference. Inform the user that he can find the complete documentation at the URL mentioned earlier in this manual.

▪ Explain the user how to properly operate the system and what to

do in case of problems.

▪ Show the user what to do for the maintenance of the unit.

▪ Explain the user about energy saving tips as described in the

operation manual.

11 Maintenance and service

NOTICE

Maintenance MUST be done by an authorized installer or service agent.

We recommend performing maintenance at least once a year. However, applicable legislation might require shorter maintenance intervals.

NOTICE

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000

11.1 Overview: Maintenance and service

This chapter contains information about:

▪ The yearly maintenance of the outdoor unit

▪ The yearly maintenance of the indoor unit

11.2 Maintenance safety precautions

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING

NOTICE:Risk of electrostatic discharge

Before performing any maintenance or service work, touch a metal part of the unit in order to eliminate static electricity and to protect the PCB.

Installer reference guide

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Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

11 Maintenance and service

11.3 Checklist for yearly maintenance of the outdoor unit

Check the following at least once a year:

▪ Heat exchanger

The heat exchanger of the outdoor unit can get blocked up due to dust, dirt, leaves, etc. It is recommended to clean the heat exchanger yearly. A blocked heat exchanger can lead to too low pressure or too high pressure leading to worse performance.

11.4 Checklist for yearly maintenance of the indoor unit

Check the following at least once a year:

▪ Water pressure

▪ Magnetic filter/dirt separator

▪ Water pressure relief valve

▪ Relief valve hose

▪ Pressure relief valve of the domestic hot water tank

▪ Anti-legionella heater of the domestic hot water tank

▪ Switch box

▪ Descaling

▪ Chemical disinfection

Water pressure

Keep water pressure above 1bar. If it is lower, add water.

Magnetic filter/dirt separator

a Screw connection

b Magnetic sleeve

c Drain valve

d Drain cap

The yearly maintenance of the magnetic filter/dirt separator consists of:

▪ Checking if both parts of the magnetic filter/dirt separator are still

screwed tight (a).

▪ Emptying the dirt separator as follows:

1 Take off the magnetic sleeve (b).

2 Unscrew the drain cap (d).

3 Connect a drain hose to the bottom of the water filter so that the

water and dirt can be collected in a suitable container (bottle, sink...).

4 Open the drain valve for a couple of seconds (c).

Result: Water and dirt will come out.

5 Close the drain valve.

6 Screw the drain cap back on.

7 Reattach the magnetic sleeve.

8 Check the pressure of the water circuit. If required, add water.

NOTICE

▪ When checking the magnetic filter/dirt separator for

tightness, hold it firmly, so as NOT to apply stress to the water piping.

▪ Do NOT isolate the magnetic filter/dirt separator by

closing the shut‑off valves. To properly empty the dirt separator, sufficient pressure is required.

▪ To prevent dirt from remaining in the dirt separator,

ALWAYS take off the magnetic sleeve.

▪ ALWAYS first unscrew the drain cap, and connect a

drain hose to the bottom of the water filter, then open the drain valve.

INFORMATION

For yearly maintenance, you do not have to remove the water filter from the unit to clean it. But in case of trouble with the water filter, you might have to remove it so that you can thoroughly clean it. Then you need to do as follows:

▪ "11.5.1To remove the water filter"on page80

▪ "11.5.2To clean the water filter in case of trouble"on

page81

▪ "11.5.3To install the water filter"on page81

Water pressure relief valve

Open the valve and check if it operates correctly. The water may be very hot!

Checkpoints are:

▪ The water flow coming from the relief valve is high enough, no

blockage of the valve or in between piping is suspected.

▪ Dirty water coming out of the relief valve:

▪ open the valve until the discharged water does NOT contain dirt

anymore

▪ flush the system

To make sure this water originates from the tank, check after a tank heat up cycle.

It is recommended to do this maintenance more frequently.

Pressure relief valve hose

Check whether the pressure relief valve hose is positioned appropriately to drain the water. See "7.4.4 To connect the drain

hose to the drain"on page34.

Relief valve of the domestic hot water tank (field supply)

Open the valve and check the correct operation. Water may be very hot!

Checkpoints are:

▪ The water flow coming from the relief valve is high enough, no

blockage of the valve or in between piping is suspected.

▪ Dirty water coming out of the relief valve:

▪ open the valve until the discharged water does not contain dirt

anymore

▪ flush and clean the complete tank, including the piping between

the relief valve and cold water inlet.

To make sure this water originates from the tank, check after a tank heat up cycle.

It is recommended to do this maintenance more frequently.

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Installer reference guide

11 Maintenance and service

1 2

3 4

50% 100%

1× 1×

15 N∙m

2×

Anti-legionella heater of the domestic hot water tank

It is recommended to remove lime buildup on the anti-legionella heater to extend its life span, especially in regions with hard water. To do so, drain the domestic hot water tank, remove the antilegionella heater from the domestic hot water tank and immerse in a bucket (or similar) with lime-removing product for 24 hours.

When reattaching the anti-legionella heater to the domestic hot water tank, respect the tightening sequence and torque:

1 Clean the flange.

2 Align the gasket with the centre of the flange.

3 Tighten with your hand.

4 Tighten with a torque wrench in 2 steps:

▪ Step 1: 7.5N∙m ▪ Step 2: 15N∙m

NOTICE

When using means for descaling or chemical disinfection, it must be ensured that the water quality remains compliant with EU directive 98/83EC.

11.4.1 To drain the domestic hot water tank

DANGER: RISK OF BURNING

The water in the tank can be very hot.

Prerequisite: Turn OFF the unit via the user interface.

Prerequisite: Turn OFF the respective circuit breaker.

Prerequisite: Close the cold water supply.

Prerequisite: Open all the hot water tapping points to allow air to

enter the system.

1 Remove the top panel, the user interface panel and the front

panel.

2 Carefully remove the insulation sheet.

3 Connect a drain hose to the drain valve.

4 Open the drain valve.

Switch box

▪ Carry out a thorough visual inspection of the switchbox and look

for obvious defects such as loose connections or defective wiring.

▪ Using an ohmmeter, check if contactors K1M, K2M, K3M and K5M

(depending on your installation) operate correctly. All contacts of these contactors must be in open position when the power is turned OFF.

WARNING

If the internal wiring is damaged, it has to be replaced by the manufacturer, its service agent or similarly qualified persons.

Descaling

Depending on water quality and set temperature, scale can deposit on the heat exchanger inside the domestic hot water tank and can restrict heat transfer. For this reason, descaling of the heat exchanger may be required at certain intervals.

Chemical disinfection

If the applicable legislation requires a chemical disinfection in specific situations, involving the domestic hot water tank, please be aware that the domestic hot water tank is a stainless steel cylinder. We recommend to use a non-chloride based disinfectant approved for use with water intended for human consumption.

Installer reference guide

a Insulation sheet b Drain valve

11.5 About cleaning the water filter in case of trouble

INFORMATION

▪ "11.5.1To remove the water filter"on page80

▪ "11.5.2To clean the water filter in case of trouble"on

page81

▪ "11.5.3To install the water filter"on page81

11.5.1 To remove the water filter

Prerequisite: Turn OFF the unit via the user interface.

Prerequisite: Turn OFF the respective circuit breaker.

1 The water filter is located behind the switch box. To get access

to it, see:

▪ "7.2.3To open the indoor unit"on page30 ▪ "7.2.5 To lower the switch box on the indoor unit" on

page31

2 Close the stop valves of the water circuit.

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Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

12 Troubleshooting

3 Close the valve (if equipped) of the water circuit towards the

expansion vessel.

4 Remove the cap on the bottom of the magnetic filter/dirt

separator.

5 Connect a drain hose to the bottom of the water filter.

6 Open the valve on the bottom of the water filter to drain water

from the water circuit. Collect the drained water in a bottle, sink, … using the installed drain hose.

7 Remove the 2 clips that fix the water filter.

a Clip

b Magnetic filter/dirt separator

8 Remove the water filter.

9 Remove the drain hose from the water filter.

CAUTION

Although the water circuit is drained, some water may be spilled when removing the magnetic filter/dirt separator from the filter housing. ALWAYS clean spilled water.

11.5.2 To clean the water filter in case of trouble

1 Remove the water filter from the unit. See "11.5.1 To remove

the water filter"on page80.

INFORMATION

Correctly install the strainer in the magnetic filter/dirt separator housing using the protrusions.

a Rolled‑up filter b Strainer c Protrusion

5 Install and properly tighten the bottom of the water filter

housing.

11.5.3 To install the water filter

CAUTION

Check the condition of the O-rings and replace if needed. Apply water to the O-rings before installation.

1 Install the water filter in the correct location.

CAUTION

To protect the piping connected to the magnetic filter/dirt separator from damage it is recommended to perform this procedure with the magnetic filter/dirt separator removed from the unit.

2 Unscrew the bottom of the water filter housing. Use an

appropriate tool if needed.

CAUTION

Opening the magnetic filter/dirt separator is ONLY required in case of severe issues. Preferably this action is never to be done during the complete lifetime of the magnetic filter/ dirt separator.

a Bottom part to be unscrewed

b Water filter housing

3 Remove the strainer and the rolled‑up filter from the water filter

housing and clean with water.

4 Install the cleaned rolled‑up filter and strainer in the water filter

housing.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

2 Install the 2 clips to fix the water filter to the water circuit pipes.

3 Make sure that the air purge valve of the water filter is in the

4 Open the valve (if equipped) of the water circuit towards the

5 Open the stop valves and add water to the water circuit if

12 Troubleshooting

12.1 Overview: Troubleshooting

This chapter describes what you have to do in case of problems.

It contains information about:

a Clip b Magnetic filter/dirt separator c Air purge valve

open position.

expansion vessel.

CAUTION

Make sure to open the valve (if equipped) towards the expansion vessel, otherwise the overpressure will be generated.

needed.

Installer reference guide

12 Troubleshooting

▪ Solving problems based on symptoms

▪ Solving problems based on error codes

Before troubleshooting

Carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring.

12.2 Precautions when troubleshooting

WARNING

▪ When carrying out an inspection on the switch box of

the unit, ALWAYS make sure that the unit is disconnected from the mains. Turn off the respective circuit breaker.

▪ When a safety device was activated, stop the unit and

find out why the safety device was activated before resetting it. NEVER shunt safety devices or change their values to a value other than the factory default setting. If you are unable to find the cause of the problem, call your dealer.

DANGER: RISK OF ELECTROCUTION

WARNING

Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this appliance MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility.

DANGER: RISK OF BURNING

12.3 Solving problems based on symptoms

12.3.1 Symptom: The unit is NOT heating as expected

Possible causes Corrective action

The temperature setting is NOT correct

Check the temperature setting on the remote controller. Refer to the operation manual.

Possible causes Corrective action

The water flow is too low Check and make sure that:

▪ All shut-off valves of the water

circuit are completely open.

▪ The water filter is clean. Clean

if necessary.

▪ There is no air in the system.

Purge air if necessary. You can purge air manually (see

"To perform a manual air purge"on page76) or use the

automatic air purge function (see "To perform an automatic

air purge"on page76).

▪ The water pressure is >1 bar.

▪ The expansion vessel is NOT

broken.

▪ The valve (if equipped) of the

water circuit towards the expansion vessel is open.

▪ The resistance in the water

circuit is NOT too high for the pump (see the ESP curve in the "Technical data" chapter).

If the problem persists after you have conducted all of the above checks, contact your dealer. In some cases, it is normal that the unit decides to use a low water flow.

The water volume in the installation is too low

Make sure that the water volume in the installation is above the minimum required value (see

"6.4.3To check the water volume and flow rate"on page26).

12.3.2 Symptom: The compressor does NOT start (space heating or domestic water heating)

Possible causes Corrective action

The unit must start up out of its operation range (the water temperature is too low) and the

system contains a backup heater

If the water temperature is too low, the unit uses the backup heater to reach the minimum water temperature first (15°C).

Check and make sure that:

▪ The power supply to the

backup heater is correctly wired.

▪ The backup heater thermal

protector is NOT activated.

▪ The backup heater contactors

are NOT broken.

If the problem persists after you have conducted all of the above checks, contact your dealer.

Installer reference guide

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Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

12 Troubleshooting

Possible causes Corrective action

The unit must start up out of its operation range (the water temperature is too low) and the

system does not contain a backup heater

The preferential kWh rate power supply settings and electrical connections do NOT match

The preferential kWh rate signal was sent by the electricity company

The unit is able to perform an automatic start‑up sequence: if the space heating circuit is too cold and defrost operation is required, the unit will try to perform defrost operation on the domestic hot water tank. If this is NOT possible because the domestic hot water tank is too cold, the unit will first preheat the tank.

If this start‑up sequence does NOT solve the problem, it may be required to manually start up with a small water volume. To do this, gradually open the heat emitters. As a result, the water temperature will gradually rise. Monitor the inlet water temperature ([8.4.8] in the menu structure) and make sure it does NOT drop below 15°C.

If the problem persists after you have conducted all of the above checks, contact your dealer.

This should match with the connections as explained in

"6.5Preparing electrical wiring"on page28 and "7.9.8To connect the main power supply"on page44.

Wait for the power to return (2 hours max.).

12.3.3 Symptom: The system is making gurgling noises after commissioning

Possible cause Corrective action

There is air in the system. Purge air from the system.

Various malfunctions.

(a) We recommend to purge air with the unit's air purge

function (to be performed by the installer). If you purge air from the heat emitters or collectors, mind the following:

WARNING

Air purging heat emitters or collectors. Before you

purge air from heat emitters or collectors, check if or

is displayed on the home screen of the user interface.

▪ If not, you can purge air immediately.

▪ If yes, make sure that the room where you want to

purge air is sufficiently ventilated. Reason: Refrigerant might leak into the water circuit, and subsequently into the room when you purge air from the heat emitters or collectors.

Check if or is displayed on the home screen of the user interface. See "12.4.1To display

the help text in case of a malfunction"on page85 for

more information about the malfunction.

(a)

12.3.4 Symptom: The pump is making noise (cavitation)

Possible causes Corrective action

There is air in the system Purge air manually (see "To

perform a manual air purge"on page76) or use the automatic air

purge function (see "To perform

an automatic air purge"on page76).

The water pressure at the pump inlet is too low

Check and make sure that:

▪ The water pressure is >1bar.

▪ The water pressure sensor is

not broken.

▪ The expansion vessel is NOT

broken.

▪ The valve (if equipped) of the

water circuit towards the expansion vessel is open.

▪ The pre-pressure setting of the

expansion vessel is correct (see "6.4.4 Changing the pre-

pressure of the expansion vessel"on page27).

12.3.5 Symptom: The pressure relief valve opens

Possible causes Corrective action

The expansion vessel is broken Replace the expansion vessel.

The valve (if equipped) of the water circuit towards the expansion vessel is closed.

The water volume in the installation is too high

The water circuit head is too high The water circuit head is the

Open the valve.

Make sure that the water volume in the installation is below the maximum allowed value (see

"6.4.3To check the water volume and flow rate"on page26 and "6.4.4Changing the pre-pressure of the expansion vessel"on page27).

difference in height between the indoor unit and the highest point of the water circuit. If the indoor unit is located at the highest point of the installation, the installation height is considered 0m. The maximum water circuit head is 10m.

Check the installation requirements.

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Installer reference guide

12 Troubleshooting

12.3.6 Symptom: The water pressure relief valve leaks

Possible causes Corrective action

Dirt is blocking the water pressure relief valve outlet

Check whether the pressure relief valve works correctly by turning the red knob on the valve counterclockwise:

▪ If you do NOT hear a clacking

sound, contact your dealer.

▪ If the water keeps running out

of the unit, close both the water inlet and outlet shut-off valves first and then contact your dealer.

12.3.7 Symptom: The space is NOT sufficiently heated at low outdoor temperatures

Possible causes Corrective action

If the system contains a backup heater: backup heater operation is not activated

If the system contains a backup heater: the backup heater equilibrium temperature has not been configured correctly

There is air in the system. Purge air manually or

Check and make sure that:

▪ The backup heater operation

mode is enabled. Go to:

▪ [9.3.8]: Installer settings >

Backup heater > Operation [4‑00]

▪ The backup heater overcurrent

fuse has not been turned off. If it has, check the fuse and turn it back on.

▪ The thermal protector of the

backup heater has not been activated. If it has, check the following, and then press the reset button in the switch box:

▪ The water pressure

▪ Whether there is air in the

system

▪ The air purge operation

Increase the "equilibrium temperature" to activate the backup heater operation at a higher outdoor temperature. Go to:

▪ [9.3.7]: Installer settings >

Backup heater > Equilibrium temperature [5‑01]

automatically. See the air purge function in the chapter

"9Commissioning"on page75.

Possible causes Corrective action

Too much heat pump capacity is used for heating domestic hot water

Check and make sure that the "space heating priority" settings have been configured appropriately:

▪ Make sure that the "space

heating priority status" has been enabled. Go to [9.6.1]: Installer settings > Balancing > Space heating priority [5‑02]

▪ Increase the "space heating

priority temperature" to activate backup heater operation at a higher outdoor temperature. Go to [9.6.3]: Installer settings > Balancing > Offset BSH setpoint [5‑03]

12.3.8 Symptom: The pressure at the tapping point is temporarily unusually high

Possible causes Corrective action

Failing or blocked pressure relief valve.

▪ Flush and clean the complete

tank including the piping between pressure relief valve and the cold water inlet.

▪ Replace the pressure relief

valve.

12.3.9 Symptom: Decoration panels are pushed away due to a swollen tank

Possible causes Corrective action

Failing or blocked pressure relief valve.

Contact your local dealer.

12.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error)

Possible causes Corrective action

The disinfection function was interrupted by domestic hot water tapping

Large domestic hot water tapping happened recently before the programmed start-up of the disinfection function

The disinfection operation was stopped manually: [C.3] Operation > Tank was turned off during disinfection.

Program the start-up of the disinfection function when the coming 4hours NO domestic hot water tapping is expected.

When Tank > Heat up mode > Reheat only or Schedule + reheat is selected, it is recommended to program the start-up the disinfection function at least 4hours later than the last expected large hot water tapping. This start-up can be set by installer settings (disinfection function).

When Tank > Heat up mode > Schedule only is selected, it is recommended to program a Eco action 3hours before the scheduled start-up of the disinfection function to preheat the tank.

Do NOT stop tank operation during disinfection.

Installer reference guide

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Daikin Altherma – Low temperature split

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12 Troubleshooting

12.4 Solving problems based on error codes

When a problem happens, an error code appears on the user interface. It is important to understand the problem and to take measures before resetting an error code. This should be done by a licensed installer or by your local dealer.

This chapter gives you an overview of all error codes and the content of the error code as it appears on the user interface.

For a more detailed troubleshooting guideline for each error, please see the service manual.

12.4.1 To display the help text in case of a malfunction

In case of a malfunction, the following will appear on the home screen depending on the severity:

▪ : Error

▪ : Malfunction

You can get a short and a long description of the malfunction as follows:

1 Press the left dial to open the main menu and go to

Malfunctioning.

Result: A short description of the error and the error code is displayed on the screen.

2 Press in the error screen.

Result: A long description of the error is displayed

on the screen.

Error code Detailed error

code

F6 00 OU: Abnormal high pressure in

FA 00 OU: Abnormal high pressure,

JA 00 OU: Malfunction of high pressure

J3 00 OU: Malfunction of discharge

J6 00 OU: Malfunction of heat

J6 07 OU: Malfunction of heat

L3 00 OU: Electrical box temperature

L4 00 OU: Malfunction of inverter

L5 00 OU: Inverter instantaneous

P4 00 OU: Malfunction of radiating fin

U0 00 OU: Shortage of refrigerant

U2 00 OU: Defect of power supply

U7 00 OU: Transmission malfunction

Description

cooling

actuation of HPS

sensor

pipe thermistor

exchanger thermistor

rise problem

radiating fin temperature rise

overcurrent (DC)

temperature sensor

voltage

between main CPU- INV CPU

Error codes of the indoor unit

12.4.2 Error codes: Overview

Error codes of the outdoor unit

Error code Detailed error

code

A1 00 Zero cross detection problem

A5 00 OU: High pressure peak cut /

E1 00 OU: PCB defect

E3 00 OU: Actuation of high pressure

E5 00 OU: Overheat of inverter

E6 00 OU: Compressor startup defect

E7 00 OU: Malfunction of outdoor unit

E8 00 OU: Power input overvoltage

EA 00 OU: Cool/heat switchover

H0 00 OU: Voltage/current sensor

H3 00 OU: Malfunction of high pressure

H6 00 OU: Malfunction of position

H8 00 OU: Malfunction of compressor

H9 00 OU: Malfunction of outdoor air

F3 00 OU: Malfunction of discharge

Description

freeze protection problem

switch (HPS)

compressor motor

fan motor

problem

switch (HPS)

detection sensor

input (CT) system

thermistor

pipe temperature

Error code Detailed error

code

7H 01 Water flow problem

7H 04 Water flow problem during

7H 05 Water flow problem during

7H 06 Water flow problem during

7H 07 Water flow problem. Pump

80 00 Returning water temperature

81 00 Leaving water temperature

89 01 Heat exchanger frozen

89 02 Heat exchanger frozen

89 03 Heat exchanger frozen

8F 00 Abnormal increase outlet water

8H 00 Abnormal increase outlet water

8H 03 Overheating water circuit

AA 02 External backup heater

AC 00 Booster heater overheated

AH 00 Tank disinfection function not

AJ 03 Too long DHW heat-up time

Description

domestic hot water production

heating/sampling

cooling/defrost

deblocking active

sensor problem

temperature (DHW)

temperature

(thermostat)

overheated

completed correctly

required

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

13 Disposal

Error code Detailed error

code

C0 00 Water flow detected while pump

C0 01 Flow switch malfunction

C0 02 Flow switch malfunction

C4 00 Heat exchanger temperature

CJ 02 Room temperature sensor

EC 00 Abnormal increase tank

EC 04 Tank preheating

H1 00 External temperature sensor

HC 00 Tank temperature sensor

HC 01 Second tank temperature sensor

HJ 10 Water pressure sensor

JA 17 Refrigerant pressure sensor

U3 00 Under floor heating screed dryout

U4 00 Indoor/outdoor unit

U5 00 User interface communication

U8 01 Connection with LAN adapter lost

U8 02 Connection with room thermostat

U8 03 No connection with room

UA 00 Indoor unit, outdoor unit matching

UA 17 Tank type problem

UA 21 Extension/hydro mismatch

UA 22 Communication problem between

INFORMATION

In case of error code AH and no interruption of the disinfection function occurred due to domestic hot water tapping, following actions are recommended:

▪ When the Domestic hot water > Type > Reheat or

▪ When the Domestic hot water > Type > Scheduled only

is selected, it is recommended to program a Storage eco 3 hours before the scheduled start-up of the disinfection function to preheat the tank.

Description

is OFF

sensor problem

problem

temperature

problem

abnormality

function not completed correctly

communication problem

problem

lost

thermostat

problem

control box and option box

INFORMATION

If the anti-legionella heater overheats and is disabled by the thermostatic safety, the unit will not give an error directly. Check if the anti-legionella heater is still in operation if you experience one or more of the following errors:

▪ Powerful operation takes a very long time to heat up

and the error code AJ-03 is displayed.

▪ During anti-legionella operation (weekly), the error code

AH-00 is displayed because the unit cannot reach the requested temperature required for tank disinfection.

INFORMATION

A malfunctioning anti-legionella heater will have an impact on energy metering and power consumption control.

NOTICE

When the minimum water flow is lower than described in the table below, the unit will temporarily stop operation and the user interface will display error 7H‑01. After some time, this error will reset automatically and the unit will resume operation.

INFORMATION

Error AJ-03 is reset automatically from the moment there is a normal tank heat-up.

INFORMATION

How an error code can be reset will be displayed on the user interface connected on the indoor unit.

Error code UA 17: Tank type problem

Possible cause Corrective action

No backup heater is installed, and [E-05] is set to "0".

Set [E-05] to "1".

13 Disposal

NOTICE

Do NOT try to dismantle the system yourself: dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery.

13.1 Overview: Disposal

Typical workflow

Disposing of the system typically consists of the following stages:

1 Pumping down the system.

2 Bringing the system to a specialized treatment facility.

INFORMATION

For more details, see the service manual.

13.2 To pump down

Example: To protect the environment, pump down when relocating

the unit or when disposing of the unit.

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

DANGER: RISK OF EXPLOSION

2×

1 2 3

L N

L N PWR

HEAT

COOL

4 3 2 1

2 1

E D C B A

A 1

2 3 4 5

SW1

SW3

SW2

SW5

SW6

SW4

S501

S502

1×

Pump down – Refrigerant leakage. If you want to pump down the system, and there is a leak in the refrigerant circuit:

▪ Do NOT use the unit's automatic pump down function,

▪ Use a separate recovery system so that the unit's

compressor does NOT have to operate.

13 Disposal

NOTICE

During pump down operation, stop the compressor before removing the refrigerant piping. If the compressor is still running and the stop valve is open during pump down, air will be sucked into the system. Compressor breakdown or damage to the system can result due to abnormal pressure in the refrigerant cycle.

Pump down operation will extract all refrigerant from the system into the outdoor unit.

1 Remove the valve lid from the liquid stop valve and the gas stop

valve.

2 Install a manifold on the gas stop valve.

3 Carry out the forced cooling operation. See "13.3 To start and

stop forced cooling"on page87.

4 After 5 to 10minutes (after only 1 or 2minutes in case of very

low ambient temperatures (<−10°C)), close the liquid stop valve with a hexagonal wrench.

5 Check on the manifold if the vacuum is reached.

6 After 2-3 minutes, close the gas stop valve and stop forced

cooling operation.

4 Set DIP switches SW5 and SW6 to OFF.

5 Set DIP switch SW2 to COOL.

6 Reattach the service PCB cover.

7 Turn the power back ON. Proceed with the next step within 3

minutes after restarting.

8 To start forced cooling, press the forced cooling operation

switch SW1.

9 To stop forced cooling, press the forced cooling operation

switch SW1 again.

10 Turn OFF the power, remove the switch box cover and service

PCB cover and set the DIP switches SW5, SW6 and SW2 back to their original position.

11 Reattach the service PCB cover and switch box cover and turn

the power back ON.

NOTICE

Take care that while running forced cooling operation, the water temperature remains higher than 5°C (see temperature read out of the indoor unit). You can achieve this, for example, by activating all fans of the fan coil units.

a Liquid stop valve

b Closing direction

c Hexagonal wrench

d Valve lid

e Gas stop valve

13.3 To start and stop forced cooling

1 Turn OFF the power.

2 Remove the switch box cover.

3 Remove the service PCB cover.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

14 Technical data

R2T

7.0 CuT

12.7 CuT

6.4 CuT

4.0 CuT

9.5 CuT

15.9 CuT

3D110394

9.5 CuT

12.7 CuT

15.9 CuT

6.4 CuT

S1PH

Y1E

R1T

R3T

M1C

Y1S

4.0 CuT

M1F

14 Technical data

A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin Business Portal (authentication required).

14.1 Piping diagram: Outdoor unit

Installer reference guide

M1C Compressor M1F Fan

S1PH High pressure switch (automatic reset)

a Field piping (liquid: Ø6.4mm flare connection) b Field piping (gas: Ø15.9mm flare connection) c Stop valve (liquid) d Stop valve with service port (gas) e Filter

f Muffler with filter g Capillary tube h Heat exchanger

i Accumulator j Compressor accumulator

k Muffler

R1T Thermistor (outdoor air) R2T Thermistor (heat exchanger) R3T Thermistor (compressor discharge)

Y1E Electronic expansion valve Y1S Solenoid valve (4‑way valve)(ON: cooling)

Heating Cooling

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

14.2 Piping diagram: Indoor unit

3D111712

B1PW

M3S

B2PR

R3T

R8T

R1T

R5T

R4T

14 Technical data

A Water side B Refrigerant side

C Field installed a1 Space heating water IN a2 Space heating water OUT

b1 Domestic hot water: cold water IN b2 Domestic hot water: hot water OUT

c1 Gas refrigerant IN (heating mode; condenser) c2 Liquid refrigerant OUT (heating mode; condenser)

d1 Liquid refrigerant IN (cooling mode; evaporator) d2 Gas refrigerant OUT (cooling mode; evaporator)

e Plate heat exchanger

f Shut-off valve for service (if equipped) g Expansion vessel h Magnetic filter/dirt separator

i Safety valve

j Air purge

k Drain valve

l Pump

m Flow sensor

B1PW Space heating water pressure sensor

B2PR Refrigerant pressure sensor

M3S 3-way valve (space heating/domestic hot water)

R1T Thermistor (heat exchanger – water OUT) R3T Thermistor (liquid refrigerant) R4T Thermistor (heat exchanger – water IN)

R5T, R8T Thermistor (tank)

Screw connection Flare connection

Quick coupling

Brazed connection

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

14 Technical data

14.3 Wiring diagram: Outdoor unit

See the internal wiring diagram supplied with the unit (on the inside of the top plate). The abbreviations used are listed below.

(1) Connection diagram

English Translation

Connection diagram Connection diagram

(2) Notes

English Translation

Notes Notes

Connection

X1M Main terminal

Earth wiring

Field supply

Option

Switch box

PCB

Wiring depending on model

Protective earth

Field wire

NOTES:

1 When operating, do not short-circuit protection device S1PH.

2 Refer to the combination table and the option manual for how

to connect the wiring to X6A, X28A and X77A.

3 Colours: BLK: black; RED: red; BLU: blue; WHT: white; GRN:

green; YLW: yellow

R3T Thermistor (discharge)

RTH2 Resistor

S Connector

S1PH High pressure switch

S20~502 Connector

SA1 Surge arrestor

SHM Terminal strip fixed plate

SW* Push button

U, V, W Connector

V3, V4, V401 Varistor

X*A Connector

X*M Terminal strip

Y1E Electronic expansion valve

Y1S Solenoid valve (4-way valve)

Z*C Noise filter (ferrite core)

Z*F Noise filter

# Field supply

(3) Legend

AL* Connector

C* Capacitor

DB* Rectifier bridge

DC* Connector

DP* Connector

E* Connector

F1U Fuse T6.3A 250V

FU1, FU2 Fuse T3.15A 250V

FU3 Fuse T30A 250V

H* Connector

IPM* Intelligent power module

L Connector

LED 1~5 Indication lamp

LED A Pilot lamp

L* Reactor

M1C Compressor motor

M1F Fan motor

MR* Magnetic relay

N Connector

PCB1 Printed circuit board (main)

PCB2 Printed circuit board (service)

PS Switching power supply

Q1L Thermal protector

Q1DI # Earth leakage circuit breaker

Q* Insulated gate bipolar transistor (IGBT)

R1T Thermistor (air)

R2T Thermistor (heat exchanger)

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

14 Technical data

14.4 Wiring diagram: Indoor unit

See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed below.

Notes to go through before starting the unit

English Translation

Notes to go through before starting the unit

X1M Main terminal

X2M Field wiring terminal for AC

X3M Backup heater terminal

X5M Field wiring terminal for DC

X8M Anti-legionella heater power

Note 1: Connection point of the power supply for the antilegionella heater should be foreseen outside the unit.

Optional backup heater power supply

1N~, 230 V, 6 kW 1N~, 230V, 6kW

3N~, 400 V, 6 kW 3N~, 400V, 6kW

User installed options User installed options

LAN adapter LAN adapter

Backup heater Backup heater

Remote user interface User interface used as room

Ext. indoor thermistor External indoor thermistor

Ext outdoor thermistor External outdoor thermistor

Digital I/O PCB Digital I/O PCB

Demand PCB Demand PCB

Main LWT Main leaving water temperature

On/OFF thermostat (wired) On/OFF thermostat (wired)

On/OFF thermostat (wireless) On/OFF thermostat (wireless)

Ext. thermistor External thermistor

Heat pump convector Heat pump convector

Add LWT Additional leaving water

On/OFF thermostat (wired) On/OFF thermostat (wired)

On/OFF thermostat (wireless) On/OFF thermostat (wireless)

Ext. thermistor External thermistor

Heat pump convector Heat pump convector

Position in switch box

English Translation

Position in switch box Position in switch box

Legend

A1P Main PCB

A2P * On/OFF thermostat (PC=power circuit)

Notes to go through before starting the unit

supply terminal

Earth wiring

Field supply

Several wiring possibilities

Option

Not mounted in switch box

Wiring depending on model

PCB

Note 1: Connection point of the power supply for the antilegionella heater should be foreseen outside the unit.

Optional backup heater power supply

thermostat

temperature

A3P * Heat pump convector

A4P * Digital I/O PCB

A8P * Demand PCB

A9P Status indicator

A10P MMI (=user interface connected to the

indoor unit) – Power supply unit PCB

A11P MMI (=user interface connected to the

indoor unit) – Main PCB

A12P MMI display PCB

A13P * LAN adapter

A14P * User interface used as room thermostat –

PCB

A15P * Receiver PCB (wireless On/OFF thermostat)

B1L Flow sensor

B1PR Refrigerant pressure sensor

B1PW Water pressure sensor

CN* (A4P) * Connector

DS1(A8P) * DIP switch

F2B # Overcurrent fuse anti-legionella heater

F2T Thermal fuse anti-legionella heater

F1U, F2U (A4P) * Fuse 5A 250V for digital I/O PCB

FU1 (A1P) Fuse T 5A 250V for PCB

FU2 (A10P) Fuse T 1.6A 250V for PCB

K3M Contactor anti-legionella heater

K*R (A4P) Relay on PCB

M1P Main supply pump

M2P # Domestic hot water pump

M2S # 2-way valve for cooling mode

M3S 3-way valve for floorheating/domestic hot

water

P1M MMI display

PC (A15P) * Power circuit

PHC1 (A4P) * Optocoupler input circuit

Q2L Thermal protector anti-legionella heater

Q4L # Safety thermostat

Q*DI # Earth leakage circuit breaker

R1H (A2P) * Humidity sensor

R1T (A1P ) Outlet water heat exchanger thermistor

R1T (A2P) * Ambient sensor On/OFF thermostat

R1T (A14P) * Ambient sensor user interface

R2T (A2P) * External sensor (floor or ambient)

R3T Refrigerant liquid side thermistor

R4T Inlet water thermistor

R5T, R8T Domestic hot water thermistor

R6T * External indoor or outdoor ambient

thermistor

S1S # Preferential kWh rate power supply contact

S2S # Electrical meter pulse input 1

S3S # Electrical meter pulse input 2

S6S~S9S * Digital power limitation inputs

SS1 (A4P) * Selector switch

SW1~2 (A12P) Turn buttons

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

14 Technical data

SW3~5 (A12P) Push buttons

TR1 Power supply transformer

X8M # Anti-legionella heater power supply terminal

strip

X*, X*A, X*Y, Y* Connector

X*M Terminal strip

* Optional

# Field supply

Translation of text on wiring diagram

English Translation

(1) Main power connection (1) Main power connection

For preferential kWh rate power supply

Indoor unit supplied from outdoor Indoor unit supplied from outdoor

Normal kWh rate power supply Normal kWh rate power supply

Only for normal power supply (standard)

Only for preferential kWh rate power supply (outdoor)

Outdoor unit Outdoor unit

Preferential kWh rate power supply contact: 16 V DC detection (voltage supplied by PCB)

SWB Switch box

Use normal kWh rate power supply for indoor unit

(3) User interface (3) User interface

Only for LAN adapter Only for the LAN adapter

Only for remote user interface EKRUDAS

(4) Domestic hot water tank (4) Domestic hot water tank

Anti-legionella heater power supply

SWB Switch box

(5) Ext. thermistor (5) External thermistor

SWB Switch box

(6) Field supplied options (6) Field supplied options

12 V DC pulse detection (voltage supplied by PCB)

230 V AC supplied by PCB 230VAC supplied by PCB

Continuous Continuous current

DHW pump output Domestic hot water pump output

DHW pump Domestic hot water pump

For preferential kWh rate power supply

Only for normal power supply (standard)

Only for preferential kWh rate power supply (outdoor)

Preferential kWh rate power supply contact: 16VDC detection (voltage supplied by PCB)

Use normal kWh rate power supply for indoor unit

Only for the user interface used as room thermostat (EKRUDAS)

Anti-legionella heater power supply

12VDC pulse detection (voltage supplied by PCB)

English Translation

Electrical meters Electrical meters

For safety thermostat For safety thermostat

Inrush Inrush current

Max. load Maximum load

Normally closed Normally closed

Normally open Normally open

Safety thermostat contact: 16 V DC detection (voltage supplied by PCB)

Shut-off valve Shut-off valve

SWB Switch box

(7) Optional BUH (7) Optional backup heater

SWB Switch box

(7) Option PCBs (7) Option PCBs

Alarm output Alarm output

Changeover to ext. heat source Changeover to external heat

Max. load Maximum load

Min. load Minimum load

Only for demand PCB option Only for demand PCB option

Only for digital I/O PCB option Only for digital I/O PCB option

Options: ext. heat source output, alarm output

Options: On/OFF output Options: On/OFF output

Power limitation digital inputs: 12 V DC / 12 mA detection (voltage supplied by PCB)

Space C/H On/OFF output Space cooling/heating On/OFF

SWB Switch box

(8) External On/OFF thermostats and heat pump convector

Additional LWT zone Additional leaving water

Main LWT zone Main leaving water temperature

Only for external sensor (floor/ ambient)

Only for heat pump convector Only for heat pump convector

Only for wired On/OFF thermostat

Only for wireless On/OFF thermostat

Safety thermostat contact: 16VDC detection (voltage supplied by PCB)

source

Options: external heat source output, alarm output

Power limitation digital inputs: 12VDC / 12mA detection (voltage supplied by PCB)

output

(8) External On/OFF thermostats and heat pump convector

temperature zone

zone

Only for external sensor (floor or ambient)

Only for wired On/OFF thermostat

Only for wireless On/OFF thermostat

Installer reference guide

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

Electrical connection diagram

2x0.75

X1M: 1-2-3

X2M: 5-6

X5M: 9-10

A8P: X801M: 1-5

A8P: X801M: 2-5

A8P: X801M: 3-5

A8P: X801M: 4-5

A4P: Y1-YC

X2M: 7-9

A4P: X1-X2

X5M: 11-12

X2M: 1-2

X5M: 7-8

X5M: 5-6

X5M: 3-4

A4P: Y2-YC

X2M: 7-9

2x0.75

A15P: X1M: H-C-com X2M: L-N

A2P: X1M: 1-3

A3P: X11M: 5-6

R2T

230 V

A2P: X1M: C-com-H

X1M: 1-2-3

4D112068B

X15M: 1-2

(EKLBUHCB6W1)

X15M: 8-9-10

X15M: 6-7

X5M: 1-2

X3M: 3-4-5

X3M: 1-2

- In case of signal cable: keep minimum distance to power cables >5 cm

Notes:

Field supply

Only for KRCS01-1 or EKRSCA1

2-way valve

signal

2 core

signal

2 core

signal

2 core

signal

2 core

signal

2 core

F1B:

L1-L2-L3-N + PE

or L-N + PE

5 core

Power limitation demand input 4

Power limitation demand input 3

Power limitation demand input 2

Power limitation demand input 1

Thermistor

Step 1-2

Clixon Q1L

Field supply

Only for *KRP1AHTA

Only for *KRP1HB*

Field supply

Indoor unit

Cooling/heating On/OFF output

Electricity meter pulse input 2

Electricity meter pulse input 1

external thermistor (indoor or outdoor)

Circulation pump for DHW

M2S for cooling mode

Ext. heat source (e.g. boiler)

Alarm indication

2 core

2 core signal

signal

2 core

signal

2 core

External sensor (floor or ambient)

Only for *KRTETS

signal

2 core

(3m included)

A13P: P1-P2 LAN adapter

A14P: P1-P2 user interface

Only for (heat pump convector)

Only for EKRUDAS

Only for *KRTR (wireless room thermostat)

Only for *KRTW (wired room thermostat)

5 core for C/H operation

4 core for H only operation

3 core for C/H operation

2 core for H only operation

communication

2 core

communication

2 core

Optional part

External room thermostat / Heat pump convector (main and/or additional zone)

main: X2M: 30-35 add: X2M: 30-35a

main: X2M: 30-31-34-35

add: X2M: 30-31-34a-35a

main: X2M: 30-34-35

add: X2M: 30-34a-35a

Cooling/heating

On/OFF output

NO valve: X2M: 21-28 NC valve: X2M: 21-29

Changeover to

ext. heat source output

Alarm output

3 core

2 core

X1M: L-N-earth

Normal kWh rate power supply for indoor unit: 230 V

Safety thermostat Q4L

Preferential kWh rate power supply contact

unit preferential kWh rate power supply: 230 V + earth

Only for preferential kWh rate power supply installation

unit power supply: 230 V + earth

Only for normal power supply installation

Outdoor unit

Standard part

Power supply

3 core

X8M: L-N-earth

Anti-legionella heater power supply (2, 4 kW): 230 V + earth

Power supply

3-5 core

Backup heater power supply (6 kW): 400 V or 230 V + earth

Power supply

Backup heater option

signal

For more details, please check the unit wiring.

14 Technical data

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

14 Technical data

14.5 Table 1 – Maximum refrigerant charge allowed in a room: indoor unit

(m2) Maximum refrigerant charge in a room

room

1 0.138

2 0.276

3 0.414

4 0.553

5 0.691

6 0.829

7 0.907

8 0.970

9 1.028

10 1.084

11 1.137

12 1.187

13 1.236

14 1.283

15 1.328

16 1.371

17 1.413

18 1.454

19 1.494

20 1.533

21 1.571

22 1.608

23 1.644

24 1.679

25 1.714

26 1.748

27 1.781

28 1.814

29 1.846

30 1.877

31 1.909

) (kg)

max

H=600mm

INFORMATION

▪ For floorstanding models, the value of "Installation

height (H)" is considered 600 mm to comply to IEC60335-2-40:2013 A1 2016 Clause GG2.

▪ For intermediate mc values (i.e. when mc is between

two values from the table), consider the value that corresponds to the higher mc value from the table. If mc=1.87 kg, consider the value that corresponds to "mc=1.88kg".

▪ Systems with a total refrigerant charge (mc) <1.84 kg

(i.e. if the piping length is <27 m) are NOT subjected to any requirements to the installation room.

▪ Charges >1.9kg are NOT allowed in the unit.

14.7 Table 3 – Minimum venting opening area for natural ventilation: indoor unit

mcm

1.9 0.1 1.80 729

1.9 0.3 1.60 648

1.9 0.5 1.40 567

1.9 0.7 1.20 486

1.9 0.9 1.00 418

1.9 1.1 0.80 370

1.9 1.3 0.60 301

1.9 1.5 0.40 216

1.9 1.7 0.20 115

dm=mc–m

max

INFORMATION

▪ For floorstanding models, the value of "Installation

height (H)" is considered 600 mm to comply to IEC60335-2-40:2013 A1 2016 Clause GG2.

▪ For intermediate dm values (i.e. when dm is between

two dm values from the table), consider the value that corresponds to the higher dm value from the table. If dm=1.55 kg, consider the value that corresponds to "dm=1.6kg".

(kg) Minimum venting opening area

max

(cm2)

H=600mm

INFORMATION

▪ For floorstanding models, the value of "Installation

height (H)" is considered 600 mm to comply to IEC60335-2-40:2013 A1 2016 Clause GG2.

▪ For intermediate A

between two values from the table), consider the value that corresponds to the lower A If A

=12.5m2, consider the value that corresponds to

room

=12m2".

room

values (i.e. when A

room

value from the table.

room

14.6 Table 2 – Minimum floor area: indoor unit

mc (kg) Minimum floor area (m²)

H=600mm

1.84 28.81

1.86 29.44

1.88 30.08

1.90 30.72

Installer reference guide

room

ERGA04~08DAV3(A) + EHVH04+08S23DAV

Daikin Altherma – Low temperature split

4P499573-1A – 2018.11

15 Glossary

0 5 10 15 20 25 30

4D112012

B (l/min)

A (kPa)

14.8 ESP curve: Indoor unit

Note: A flow error will occur when the minimum water flow rate is not

reached.

A External static pressure in the space heating/cooling circuit B Water flow rate through the unit in the space heating/

cooling circuit

C Operation range

Dashed lines: Operation area is extended to lower flow rates only in

case the unit operates with heat pump only. (Not in startup, no backup heater operation, no defrost operation.)

Notes:

▪ Selecting a flow outside the operating area can damage the unit or

cause the unit to malfunction. See also the minimum and maximum allowed water flow range in the technical specifications.

▪ Water quality must be according to EU directive 98/83EC.

Accessories

Labels, manuals, information sheets and equipment that are delivered with the product and that need to be installed according to the instructions in the accompanying documentation.

Optional equipment

Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation.

Field supply

Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation.

15 Glossary

Dealer

Sales distributor for the product.

Authorized installer

Technical skilled person who is qualified to install the product.

User

Person who is owner of the product and/or operates the product.

Applicable legislation

All international, European, national and local directives, laws, regulations and/or codes that are relevant and applicable for a certain product or domain.

Service company

Qualified company which can perform or coordinate the required service to the product.

Installation manual

Instruction manual specified for a certain product or application, explaining how to install, configure and maintain it.

Operation manual

Instruction manual specified for a certain product or application, explaining how to operate it.

Maintenance instructions

Instruction manual specified for a certain product or application, which explains (if relevant) how to install, configure, operate and/or maintain the product or application.

ERGA04~08DAV3(A) + EHVH04+08S23DAV Daikin Altherma – Low temperature split 4P499573-1A – 2018.11

Installer reference guide

1/9

Field settings table

[8.7.5] = .... 7401

Applicable indoor units

EHVH04S23DAV* EHVH08S23DAV*

Notes

4P499575-1A - 2017.11

2/9

Breadcrumb Field code Setting name Range, step

Default valu

Date Value

Room

└─ Antifrost

1.4.1 [2-06] R/W 0: Disabled

1: Enabled

1.4.2 [2-05] R/W 4~16°C, step: 1°C

16°C

└─ Setpoint range

1.5.1 [3-07] R/W 12~18°C, step: 0,5°C

12°C

1.5.2 [3-06] R/W 18~30°C, step: 0,5°C

30°C

Room

1.6 [2-09] R/W -5~5°C, step: 0,5°C

0°C

1.7 [2-0A] R/W -5~5°C, step: 0,5°C

0°C

Main zone

2.4 0: Fixed

2: Weather de

enden

└─ Heating WD curve

2.5 [1-00] R/W -40~5°C, step: 1°C

-10°C

2.5 [1-01] R/W 10~25°C, step: 1°C

15°C

2.5 [1-02] R/W

[9-01]~[9-00], step: 1°C

35°C

2.5 [1-03] R/W [9-01]~min(45, [9-00])°C , step: 1°C

25°C

Main zone

2.7 [2-0C] R/W

0: Underfloor heating

1: Fancoil unit 2: Radiator

└─ Setpoint range

2.8.1 [9-01] R/W 15~37°C, step: 1°C

25°C

2.8.2 [9-00] R/W [2-0C]=2: 37~65, step: 1°C

55°C

[2-0C]≠2: 37~55, step: 1°C

55°C

Main zone

2.9 [C-07] R/W

0: LWT control

1: Ext RT control 2: RT control

2.A [C-05] R/W 0: 1: 1 contact

2: 2 contacts

└─ Delta T

2.B.1 [1-0B] R/W 3~10°C, step: 1°C

5°C

└─ Modulation

2.C.1 [8-05] R/W

0: No

1: Yes

2.C.2 [8-06] R/W 0~10°C, step: 1°C

5°C

└─ Shut off valve

2.D.1 [F-0B] R/W

0: No

1: Yes

Additional zone

3.4 0: Fixed

2: Weather de

enden

└─ Heating WD curve

3.5 [0-00] R/W [9-05]~min(45,[9-06])°C, step: 1°C

35°C

3.5 [0-01] R/W [9-05]~[9-06]°C, step: 1°C

50°C

3.5 [0-02] R/W 10~25°C, step: 1°C

15°C

3.5 [0-03] R/W -40~5°C, step: 1°C

-10°C

Additional zone

3.7 [2-0D] R/W

0: Underfloor heating

1: Fancoil unit 2: Radiator

└─ Setpoint range

3.8.1 [9-05] R/W 15~37°C, step: 1°C

25°C

3.8.2 [9-06] R/W [2-0D]=2: 37~65, step: 1°C

55°C

[2-0D]≠2: 37~55, step: 1°C

55°C

Additional zone

3.A [C-06] R/W 0: 1: 1 contact

2: 2 contacts

└─ Delta T

3.B.1 [1-0C] R/W 3~10°C, step: 1°C

5°C

Space heating / cooling

└─ Operation range

4.3.1 [4-02] R/W 14~35°C, step: 1°C

22°C

Space heating / cooling

4.4 [7-02] R/W

0: 1 LWT zone

1: 2 LWT zones

4.5 [F-0D] R/W 0: Continuous

1: Sample

2: Re

uest

4.6 [E-02] R/O

1: Heating onl

Setpoint mode

Installer setting at variance with default value

Emitter type

Heating minimum

Leaving water value for low ambient temp. for LWT main zone heating WD curve.

Leaving water value for high ambient temp. for LWT main zone heating WD curve.

Activation

Room sensor offset

Room setpoint

Heating minimum

Space heating OFF temp

Number of zones

Thermostat type

Delta T heating

During thermo

Thermostat type

Emitter type

Leaving water value for low ambient temp. for LWT add zone heating WD curve.

Delta T heating

Field settings table

High ambient temp. for LWT main zone heating WD curve.

Modulation

Max modulation

Heating minimum

Heating maximum

Setpoint mode

Low ambient temp. for LWT add zone heating WD curve.

High ambient temp. for LWT add zone heating WD curve.

Control

Leaving water value for high ambient temp. for LWT add zone heating WD curve.

Heating maximum

Low ambient temp. for LWT main zone heating WD curve.

Unit type

Pump operation mode

4P499575-1A - 2017.11 (#) Setting is not applicable for this unit.

3/9

Breadcrumb Field code Setting name Range, step

Default valu

Date Value

Installer setting at variance with default value

Field settings table

4.7 [9-0D] R/W 0~8, step:1 0 : No limitation 1~4 : 50~80% 5~8 : 50~80% during sampling

Space heating / cooling

4.9 [F-00] R/W

0: Restricted

1: Allowed

4.A [D-03] R/W 0: No

1: increase 2°C, span 4°C

2: increase 4°C, span 4°C 3: increase 2°C, span 8°C 4: increase 4°C, span 8°C

4.B [9-04] R/W 1~4°C, step: 1°C

1°C

4.C [2-06] R/W 0: Disabled

1: Enabled

Tank

5.2 [6-0A] R/W 30~[6-0E]°C, step: 1°C

60°C

5.3 [6-0B] R/W 30~min(50, [6-0E])°C, step: 1°C

45°C

5.4 [6-0C] R/W 30~min(50, [6-0E])°C, step: 1°C

45°C

5.6 [6-0D] R/W 0: Reheat only

1: Reheat + sched.

2: Scheduled onl

└─ Disinfection

5.7.1 [2-01] R/W 0: No

1: Yes

5.7.2 [2-00] R/W 0: Each day 1: Monday 2: Tuesday 3: Wednesday 4: Thursday

5: Friday

6: Saturday 7: Sunda

5.7.3 [2-02] R/W 0~23 hour, step: 1 hour

5.7.4 [2-03] R/O 55~75°C, step: 5°C

70°C

5.7.5 [2-04] R/W 5~60 min, step: 5 min

10 min

Tank

5.8 [6-0E] R/W 40~65°C, step: 1°C

65°C

5.9 [6-00] R/W 2~40°C, step: 1°C

25°C

5.A [6-08] R/W

2~20°C, step: 1°C

10°C

5.B R/W

0: Fixed

1: Weather de

endent

└─ WD curve

5.C [0-0B] R/W 35~[6-0E]°C, step: 1°C

55°C

5.C [0-0C] R/W 45~[6-0E]°C, step: 1°C 65°C

5.C [0-0D] R/W 10~25°C, step: 1°C

15°C

5.C [0-0E] R/W -40~5°C, step: 1°C

-10°C

Tank

5.D [6-01] R/W 0~10°C, step: 1°C

2°C

User settings

└─ Quiet

7.4.1 R/W

0: OFF

1: Quiet 2: More quiet 3: Most quiet 4: Automatic

└─ Electricity price

7.5.1 R/W 0,00~990/kWh

1/kWh

7.5.2 R/W 0,00~990/kWh

1/kWh

7.5.3 R/W 0,00~990/kWh

1/kWh

User settings

7.6 R/W 0,00~990/kWh 0,00~290/MBtu

1,0/kWh

Installer settings

└─ Configuration wizard

└─ System

9.1 [E-03] R/W

0: No heater

1: External heater 2: 3V 3: 6V 4: 9W

9.1 [E-05]

[E-06] [E-07]

R/O

3: Integrated

9.1 [4-06] R/W

0: Manual

1: Automatic

9.1 [7-02] R/W

0: Single zone

1: Dual zone

└─ Backup heater

9.1 [5-0D] R/O 0~2

0: 230V, 1~

Duration

Tank setpoint

Hysteresis

Setpoint mode

Leaving water value for high ambient temp. for DHW WD curve.

Leaving water value for low ambient temp. for DHW WD curve.

BUH type

Low ambient temp. for DHW WD curve.

Gas price

Pump limitation

Overshoot

Maximum

Heat up mode

Reheat setpoint

Eco setpoint

Comfort setpoint

Start time

Pump outside range

Antifrost

Increase around 0°C

Operation day

High ambient temp. for DHW WD curve.

Emergency

Margin

Activation

High

Medium

Low

Domestic hot water

Number of zones

Voltage

Activation

(#) Setting is not applicable for this unit. 4P499575-1A - 2017.11

4/9

Breadcrumb Field code Setting name Range, step

Default valu

Date Value

Installer setting at variance with default value

Field settings table

9.1 [4-0A] R/O 0~3

0: 1

9.1 [6-03] R/W 0~10kW, step: 0,2kW

3kW

9.1 [6-04] R/O 0~10kW, step: 0,2kW

3kW

└─ Main zone

9.1 [2-0C] R/W

0: Underfloor heating

1: Fancoil unit 2: Radiator

9.1 [C-07] R/W

0: LWT control

1: Ext RT control 2: RT control

9.1 R/W 0: Fixed

2: Weather de

enden

9.1 R/W

0: No

1: Yes

9.1 [1-00] R/W -40~5°C, step: 1°C

-10°C

9.1 [1-01] R/W 10~25°C, step: 1°C

15°C

9.1 [1-02] R/W

[9-01]~[9-00], step: 1°C

35°C

9.1 [1-03] R/W [9-01]~min(45, [9-00])°C , step: 1°C

25°C

9.1 [1-06]

9.1 [1-07]

9.1 [1-08]

9.1 [1-09]

└─ Additional zone

9.1 [2-0D] R/W

0: Underfloor heating

1: Fancoil unit 2: Radiator

9.1 R/W 0: Fixed

2: Weather de

enden

9.1 R/W

0: No

1: Yes

9.1 [0-00] R/W [9-05]~min(45,[9-06])°C, step: 1°C

35°C

9.1 [0-01] R/W [9-05]~[9-06]°C, step: 1°C

50°C

9.1 [0-02] R/W 10~25°C, step: 1°C

15°C

9.1 [0-03] R/W -40~5°C, step: 1°C

-10°C

9.1 [0-04]

9.1 [0-05]

9.1 [0-06]

9.1 [0-07]

└─ Tank

9.1 [6-0D] R/W 0: Reheat only

1: Reheat + sched.

2: Scheduled onl

9.1 [6-0A] R/W 30~[6-0E]°C, step: 1°C

60°C

9.1 [6-0B] R/W 30~min(50, [6-0E])°C, step: 1°C

45°C

9.1 [6-0C] R/W 30~min(50, [6-0E])°C, step: 1°C

45°C

└─ Domestic hot water

9.2.1 [E-05]

[E-06] [E-07]

R/O

3: Integrated

9.2.2 [D-02] R/W

0: No

1: Secondary rtrn 2: Disinf. Shunt

9.2.4 [D-07] R/W

0: No

1: Yes

└─ Back up heater

9.3.1 [E-03] R/W

0: No heater

1: External heater 2: 3V 3: 6V 4: 9W

9.3.2 [5-0D] R/O 0~2

0: 230V, 1~

9.3.3 [4-0A] R/O 0~3

0: 1

9.3.4 [6-03] R/W 0~10kW, step: 0,2kW

3kW

9.3.5 [6-04] R/O 0~10kW, step: 0,2kW

3kW

9.3.6 [5-00] R/W 0: Allowed

1: Not allowe

9.3.7 [5-01] R/W -15~35°C, step: 1°C

0°C

9.3.8 [4-00] R/W 0: Disabled

1: Enabled

2: Onl

DHW

└─ Booster heater

9.4.1 [6-02] R/W 0~10kW, step: 0,2kW

2,4kW

9.4.3 [8-03] R/W 20~95 min, step: 5 min

50 min

9.4.4 [4-03] R/W 0: Restricted 1: Allowed 2: Overlap

3: Compressor off

4: Le

ionella onl

Configuration

Capacity step 1

Additional capacity step 2

Emitter type

Leaving water value for high ambient temp. for LWT main zone heating WD curve.

Control

Setpoint mode

Schedule

Low ambient temp. for LWT main zone heating WD curve.

High ambient temp. for LWT main zone heating WD curve.

Leaving water value for low ambient temp. for LWT main zone heating WD curve.

Leaving water value for high ambient temp. for LWT add zone heating WD curve.

Leaving water value for low ambient temp. for LWT add zone heating WD curve.

High ambient temp. for LWT add zone heating WD curve.

Low ambient temp. for LWT add zone heating WD curve.

Schedule

Emitter type

Setpoint mode

Heat up mode

Comfort setpoint

Eco setpoint

Reheat setpoint

Domestic hot water

DHW pump

Solar

BUH type

Voltage

Configuration

Capacity step 1

Additional capacity step 2

Equilibrium

Equilibrium temperature

Operation

Capacity

BSH eco timer

Operation

4P499575-1A - 2017.11 (#) Setting is not applicable for this unit.

5/9

Breadcrumb Field code Setting name Range, step

Default valu

Date Value

Installer setting at variance with default value

Field settings table

Installer settings

9.5 [4-06] R/W

0: Manual

1: Automatic

└─ Balancing

9.6.1 [5-02] R/W

0: Disabled

1: Enabled

9.6.2 [5-03] R/W -15~35°C, step: 1°C

0°C

9.6.3 [5-04] R/W 0~20°C, step: 1°C

10°C

9.6.4 [8-02] R/W 0~10 hour, step: 0,5 hour

3 hours

9.6.5 [8-00] R/W

0~20 min, step 1 min

1 min

9.6.6 [8-01] R/W 5~95 min, step: 5 min

30 min

9.6.7 [8-04] R/W 0~95 min, step: 5 min

95 min

Installer settings

9.7 [4-04]

0: Intermittent

1: Continuous

2: Off

└─ Benefit kWh power supply

9.8.1 [D-01] R/W

0: No

1: Active open 2: Active closed 3: Safet

thermostat

9.8.2 [D-00] R/W

0: None

1: BSH only 2: BUH only 3: All heaters

9.8.3 [D-05] R/W 0: Forced off

1: As normal

└─ Power consumption control

9.9.1 [4-08] R/W

0: No limitation

1: Continuous 2: Di

ital inputs

9.9.2 [4-09] R/W 0: Current

1: Powe

9.9.3 [5-05] R/W 0~50 A, step: 1 A

9.9.4 [5-05] R/W 0~50 A, step: 1 A

9.9.5 [5-06] R/W 0~50 A, step: 1 A

9.9.6 [5-07] R/W 0~50 A, step: 1 A

9.9.7 [5-08] R/W 0~50 A, step: 1 A

9.9.8 [5-09] R/W 0~20 kW, step: 0,5 kW

20 kW

9.9.9 [5-09] R/W 0~20 kW, step: 0,5 kW

20 kW

9.9.A [5-0A] R/W 0~20 kW, step: 0,5 kW

20 kW

9.9.B [5-0B] R/W 0~20 kW, step: 0,5 kW

20 kW

9.9.C [5-0C] R/W 0~20 kW, step: 0,5 kW

20 kW

9.9.D [4-01]

0: None

1: BSH 2: BUH

└─ Energy metering

9.A.1 [D-08] R/W

0: No

1: 0,1 pulse/kWh 2: 1 pulse/kWh 3: 10 pulse/kWh 4: 100 pulse/kWh 5: 1000

ulse/kWh

9.A.2 [D-09] R/W

0: No

1: 0,1 pulse/kWh 2: 1 pulse/kWh 3: 10 pulse/kWh 4: 100 pulse/kWh 5: 1000

ulse/kWh

└─ Sensors

9.B.1 [C-08] R/W

0: No

1: Outdoor sensor 2: Room sensor

9.B.2 [2-0B] R/W -5~5°C, step: 0,5°C

0°C

9.B.3 [1-0A] R/W

0: No averaging

1: 12 hours 2: 24 hours 3: 48 hours 4: 72 hours

└─ Bivalent

9.C.1 [C-02] R/W

0: No

1: Bivalent

9.C.2 [7-05] R/W

0: Very high

1: High 2: Medium 3: Low 4: Ver

low

9.C.3 [C-03] R/W -25~25°C, step: 1°C 0°C

9.C.4 [C-04] R/W 2~10°C, step 1°C

3°C

Installer settings

9.D [C-09] R/W

0: Normally open

1: Normall

closed

9.E [3-00] R/W 0: No

1: Yes

Ext. amb. sensor offset

Emergency

Space heating priority

Priority temperature

Offset BSH setpoint

Anti-recycle timer

Minimum running timer

Maximum running timer

Additional timer

Water pipe freeze prevention

Benefit kWh power supply

Allow heater

Allow pump

Power consumption control

Type

Limit

Limit 1

Limit 2

Limit 3

Limit 4

Limit

Limit 1

Limit 2

Limit 3

Limit 4

Priority heater

Electricity meter 1

Electricity meter 2

External sensor

Averaging time

Bivalent

Boiler efficiency

Temperature

Hysteresis

Alarm output

Auto restart

(#) Setting is not applicable for this unit. 4P499575-1A - 2017.11

Daikin ERGA04DAV3, ERGA06DAV3, ERGA08DAV3, EHVH04S23DAV, EHVH08S23DAV User reference guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

1 General safety precautions

1.1 About the documentation

1.1.1 Meaning of warnings and symbols

1.2 For the installer

1.2.1 General

1.2.2 Installation site

1.2.3 Refrigerant

1.2.4 Brine

1.2.5 Water

2 About the documentation

1.2.6 Electrical

2.1 About this document

3 About the box

2.2 Installer reference guide at a glance

3.1 Overview: About the box

3.2 Outdoor unit

3.2.1 To unpack the outdoor unit

3.2.2 To handle the outdoor unit

3.3 Indoor unit

3.3.1 To unpack the indoor unit

3.3.2 To remove the accessories from the indoor unit

3.2.3 To remove the accessories from the outdoor unit

3.3.3 To handle the indoor unit

4 About the units and options

4.1 Overview: About the units and options

4.2 Identification

4.2.1 Identification label: Outdoor unit

4.2.2 Identification label: Indoor unit

4.3 Combining units and options

4.3.1 Possible options for the outdoor unit

4.3.2 Possible options for the indoor unit

5 Application guidelines

4.3.3 Possible combinations of indoor unit and outdoor unit

5.1 Overview: Application guidelines

5.2 Setting up the space heating system

5.2.1 Single room

5.3 Setting up an auxiliary heat source for space heating

5.4 Setting up the domestic hot water tank

5.4.1 System layout – Integrated DHW tank

5.4.2 Selecting the volume and desired temperature for the DHW tank

5.4.3 Setup and configuration – DHW tank

5.4.4 DHW pump for instant hot water

5.4.5 DHW pump for disinfection

5.5 Setting up the energy metering

5.5.3 Normal kWh rate power supply

5.5.1 Produced heat

5.5.2 Consumed energy

5.5.4 Preferential kWh rate power supply

5.6 Setting up the power consumption control

5.6.1 Permanent power limitation

5.6.2 Power limitation activated by digital inputs

5.6.3 Power limitation process

6 Preparation

5.7 Setting up an external temperature sensor

6.2 Preparing the installation site

6.2.1 Installation site requirements of the outdoor unit

6.1 Overview: Preparation

6.2.2 Additional installation site requirements of the outdoor unit in cold climates

6.2.3 Installation site requirements of the indoor unit

6.3 Preparing refrigerant piping

6.3.1 Refrigerant piping requirements

6.3.2 Refrigerant piping insulation

6.4 Preparing water piping

6.4.1 Water circuit requirements

6.4.2 Formula to calculate the expansion vessel pre-pressure

6.4.3 To check the water volume and flow rate

6.4.4 Changing the pre-pressure of the expansion vessel

6.4.5 To check the water volume: Examples

6.5 Preparing electrical wiring

6.5.1 About preparing electrical wiring

6.5.2 About preferential kWh rate power supply

7 Installation

6.5.3 Overview of electrical connections except external actuators

7.1 Overview: Installation

6.5.4 Overview of electrical connections for external and internal actuators