Daikin ERHQ011BA, ERHQ014BA, ERHQ016BA, ERLQ011CA, ERLQ014CA Installer reference guide

...

INSTALLER

REFERENCE GUIDE

Daikin Altherma - Low Temperature Split

ERHQ011BA ERHQ014BA ERHQ016BA ERLQ011CA ERLQ014CA ERLQ016CA

EHVH16S18CA EHVH16S26CA EHVX16S18CA EHVX16S26CA

Table of contents

1 About the documentation 2

1.1 About this document ........................................................................ 2

2 General safety precautions 2

2.1 About the documentation ................................................................. 2

2.1.1 Meaning of warnings and symbols ....................................... 2

2.2 For the installer ................................................................................ 3

2.2.1 General.................................................................................3

2.2.2 Installation site...................................................................... 3

2.2.3 Refrigerant............................................................................ 3

2.2.4 Water.................................................................................... 3

2.2.5 Electrical............................................................................... 4

3 About the box 4

3.1 Indoor unit........................................................................................4

3.1.1 To unpack the indoor unit .....................................................4

3.1.2 To remove the accessories from the indoor unit................... 4

4 About the units and options 5

4.1 Identification.....................................................................................5

4.1.1 Identification label: Indoor unit..............................................5

4.2 Possible combinations of units and options..................................... 5

4.2.1 List of options for indoor unit ................................................ 5

4.2.2 Possible combinations of indoor unit and outdoor unit......... 6

5 Application guidelines 6

5.1 Overview: Application guidelines ..................................................... 6

5.2 Setting up the space heating/cooling system................................... 6

5.2.1 Single room .......................................................................... 7

5.2.2 Multiple rooms – One LWT zone .......................................... 8

5.2.3 Multiple rooms – Two LWT zones ...................................... 10

5.3 Setting up an auxiliary heat source for space heating ................... 11

5.4 Setting up the domestic hot water tank .......................................... 12

5.4.1 System layout – Integrated DHW tank ............................... 12

5.4.2 System layout – Standalone DHW tank ............................. 13

5.4.3 Selecting the volume and desired temperature for the DHW

tank..................................................................................... 13

5.4.4 Setup and configuration – DHW tank ................................. 13

5.4.5 Combination: Standalone DHW tank + Solar panels..........14

5.4.6 DHW pump for instant hot water ........................................ 14

5.4.7 DHW pump for disinfection................................................. 14

5.5 Setting up the energy metering...................................................... 14

5.5.1 Produced heat....................................................................14

5.5.2 Consumed energy..............................................................15

5.5.3 Normal kWh rate power supply .......................................... 15

5.5.4 Preferential kWh rate power supply ................................... 15

5.6 Setting up the power consumption control ..................................... 16

5.6.1 Permanent power limitation ................................................ 16

5.6.2 Power limitation activated by digital inputs......................... 16

5.6.3 Power limitation process .................................................... 17

5.7 Setting up an external temperature sensor .................................... 17

6 Preparation 18

6.1 Preparing installation site ............................................................... 18

6.1.1 Installation site requirements of the indoor unit.................. 18

6.2 Preparing water piping ................................................................... 18

6.2.1 Water circuit requirements.................................................. 18

6.2.2 Formula to calculate the expansion vessel pre-pressure... 19

6.2.3 To check the water volume ................................................. 19

6.2.4 Changing the pre-pressure of the expansion vessel .......... 20

6.2.5 To check the water volume: Examples ............................... 20

6.3 Preparing electrical wiring .............................................................. 20

6.3.1 About preparing electrical wiring ........................................ 20

6.3.2 About preferential kWh rate power supply ......................... 21

6.3.3 Overview of electrical connections except

external actuators ............................................................... 21

6.3.4 Overview of electrical connections for external and internal

actuators............................................................................. 21

7 Installation 22

7.1 Opening the units........................................................................... 22

7.1.1 To open the indoor unit and switch box cover.................... 22

7.2 Mounting the indoor unit ................................................................ 23

7.2.1 To install the indoor unit ..................................................... 23

7.3 Connecting the water piping .......................................................... 23

7.3.1 To connect the water piping ...............................................23

7.3.2 To connect the pressure relief valve to the drain................ 23

7.3.3 To fill the water circuit ......................................................... 24

7.3.4 To fill the domestic hot water tank ...................................... 24

7.3.5 To insulate the water piping................................................ 24

7.4 Connecting the electrical wiring ..................................................... 24

7.4.1 About electrical compliance ............................................... 24

7.4.2 To connect the electrical wiring on the indoor unit .............25

7.4.3 To connect the main power supply..................................... 25

7.4.4 To connect the backup heater power supply...................... 26

7.4.5 To connect the user interface.............................................27

7.4.6 To connect the shut-off valve ............................................. 28

7.4.7 To connect the electrical meters.........................................29

7.4.8 To connect the domestic hot water pump...........................29

7.4.9 To connect the alarm output...............................................29

7.4.10 To connect the space cooling/heating ON/OFF output ...... 29

7.4.11 To connect the changeover to external heat source .......... 29

7.4.12 To connect the power consumption digital inputs...............29

7.5 Finishing the indoor unit installation............................................... 30

7.5.1 To fix the user interface cover to the indoor unit ................ 30

7.5.2 To close the indoor unit ...................................................... 30

8 Configuration 30

8.1 Overview: Configuration ................................................................ 30

8.1.1 To connect the PC cable to the switch box ........................ 30

8.1.2 To access the most used commands................................. 30

8.1.3 To copy the system settings from the first to the second user

interface ............................................................................. 31

8.1.4 To copy the language set from the first to the second user

interface ............................................................................. 31

8.1.5 Quick wizard: Set the system layout after first

power ON ........................................................................... 31

8.2 Basic configuration ........................................................................ 32

8.2.1 Quick wizard: Language / time and date............................32

8.2.2 Quick wizard: Standard ...................................................... 32

8.2.3 Quick wizard: Options ........................................................ 34

8.2.4 Quick wizard: Capacities (energy metering) ...................... 35

8.2.5 Space heating/cooling control ............................................ 36

8.2.6 Domestic hot water control................................................. 39

8.2.7 Contact/helpdesk number .................................................. 40

8.3 Advanced configuration/optimization ............................................. 40

8.3.1 Space heating/cooling operation: advanced ...................... 40

8.3.2 Domestic hot water control: advanced ............................... 43

8.3.3 Heat source settings .......................................................... 46

8.3.4 System settings .................................................................. 48

8.4 Menu structure: Overview .............................................................. 51

8.5 Menu structure: Overview installer settings ................................... 52

9 Commissioning 53

9.1 Overview: Commissioning ............................................................. 53

9.2 Checklist before test run ................................................................ 53

9.3 Air purge function........................................................................... 53

9.3.1 To perform a manual air purge ........................................... 53

9.3.2 To perform an automatic air purge ..................................... 54

9.3.3 To interrupt air purge .......................................................... 54

9.4 To perform a test run ...................................................................... 54

9.5 To perform an actuator test run...................................................... 54

9.5.1 Possible actuator test runs ................................................. 54

9.6 Underfloor heating screed dryout .................................................. 54

9.6.1 To program an underfloor heating screed dryout

schedule............................................................................. 55

9.6.2 To start an underfloor heating screed dryout...................... 55

9.6.3 To readout the status of an underfloor heating

screed dryout ..................................................................... 55

9.6.4 To interrupt an underfloor heating screed dryout ...............55

10 Hand-over to the user 55

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

1 About the documentation

11 Maintenance and service 56

11.1 Overview: Maintenance.................................................................. 56

11.2 Maintenance safety precautions ....................................................56

11.2.1 Opening the indoor unit ......................................................56

11.3 Checklist for yearly maintenance for indoor unit ............................56

11.3.1 To drain the domestic hot water tank.................................. 57

12 Troubleshooting 57

12.1 Overview: Troubleshooting.............................................................57

12.2 General guidelines ......................................................................... 57

12.3 Solving problems based on symptoms .......................................... 57

12.3.1 Symptom: The unit is NOT heating or cooling as

expected .............................................................................57

12.3.2 Symptom: The compressor does NOT start (space heating

or domestic water heating) .................................................58

12.3.3 Symptom: The pump is making noise (cavitation).............. 58

12.3.4 Symptom: The pressure relief valve opens ........................58

12.3.5 Symptom: The water pressure relief valve leaks................ 58

12.3.6 Symptom: The space is NOT sufficiently heated at low

outdoor temperatures ......................................................... 58

12.3.7 Symptom: The pressure at the tapping point is temporarily

unusual high ....................................................................... 59

12.3.8 Symptom: Decoration panels are pushed away due to a

swollen tank........................................................................59

12.4 Solving problems based on error codes......................................... 59

12.4.1 Error codes: Overview........................................................59

13 Glossary 60

14 Technical data 61

14.1 Dimensions and service space ...................................................... 61

14.1.1 Dimensions and service space: Indoor unit ........................61

14.2 Components...................................................................................63

14.2.1 Components: Indoor unit ....................................................63

14.2.2 Components: Switch box (indoor unit)................................64

14.3 Functional diagrams.......................................................................65

14.3.1 Functional diagram: Indoor unit..........................................65

14.4 Piping diagram ...............................................................................66

14.4.1 Piping diagram: Indoor unit.................................................66

14.5 Wiring diagram ...............................................................................67

14.5.1 Wiring diagram – components: Indoor unit.........................67

14.6 Technical specifications.................................................................. 73

14.6.1 Technical specifications: Indoor unit ................................... 73

14.7 Operation range ............................................................................. 75

14.7.1 Operation range: Indoor unit...............................................75

14.8 ESP curve ...................................................................................... 78

14.8.1 ESP curve: Indoor unit........................................................78

14.9 Performance ...................................................................................79

14.10Combination table .......................................................................... 82

1 About the documentation

Document Contains… Format

General safety precautions

Indoor unit

Safety instructions that you must read before installing

Installation instructions

Paper (in the box of the indoor unit)

installation manual

Outdoor unit installation

Installation instructions Paper (in the box of the

outdoor unit)

manual

Installer reference guide

Preparation of the installation, technical specifications, good

CD/DVD in the box of the indoor unit)

practices, reference data,…

Addendum book for optional equipment

Additional info about how to install optional equipment

Paper (in the box of the indoor unit)

CD/DVD (in the box of the indoor unit)

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

2 General safety precautions

2.1 About the documentation

Q The original documentation is written in English. All other

languages are translations.

Q The precautions described in this document cover very

important topics, follow them carefully.

Q All activities described in the installation manual must be

performed by an authorized installer.

2.1.1 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.

DANGER: RISK OF BURNING

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

1.1 About this document

Target audience

Authorized installers

Documentation set

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

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

WARNING

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

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.

Installer reference guide

2 General safety precautions

2.2 For the installer

2.2.1 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

Q 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.

Q Do NOT touch any accidental leaking refrigerant.

2.2.2 Installation site

Q Provide sufficient space around the unit for servicing and air

circulation.

Q Make sure the installation site withstands the unit’s weight and

vibration.

Q Make sure the area is well ventilated. Q Make sure the unit is level.

Do NOT install the unit in the following places:

Q In potentially explosive atmospheres. Q In places where there is machinery that emits electromagnetic

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

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

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

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

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

2.2.3 Refrigerant

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).

NOTICE

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 aluminum fins of the unit.

NOTICE

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

unit.

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

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:

Q Instructions for shutting down the system in case of an

emergency

Q Name and address of fire department, police and hospital Q Name, address and day and night telephone numbers for

obtaining service

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

WARNING

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

Q Excessive refrigerant concentrations in a closed room

can lead to oxygen deficiency.

Q Toxic gas may be produced if refrigerant gas comes

into contact with fire.

WARNING

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

2.2.4 Water

NOTICE

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

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

3 About the box

2.2.5 Electrical

DANGER: RISK OF ELECTROCUTION

Q Turn OFF all power supply before removing the

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

Q 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.

Q Do NOT touch electrical components with wet hands.

Q 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, shall be installed in the fixed wiring.

WARNING

Q Only use copper wires.

Q All field wiring must be performed in accordance with

the wiring diagram supplied with the product.

Q 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.

Q 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.

Q Make sure to use a dedicated power circuit. NEVER

use a power supply shared by another appliance.

Q Make sure to install the required fuses or circuit

breakers.

Q Make sure to install an earth leakage protector. Failure

to do so may cause electric shock or fire.

Q 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.

3 About the box

Q At delivery, the unit must be checked for damage. Any damage

must be reported immediately to the carrier’s claims agent.

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

position to prevent damage during transport.

3.1 Indoor unit

3.1.1 To unpack the indoor unit

3.1.2 To remove the accessories from the indoor unit

1 Remove the screws at the top of the unit. 2 Remove the top panel.

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

WARNING

Q After finishing the electrical work, confirm that each

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

Q Make sure all covers are closed before starting up the

unit.

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

3 Remove the accessories.

Installer reference guide

4 About the units and options

a General safety precautions b Addendum book for optional equipment c Indoor unit installation manual d Operation manual e CD

f User interface kit: user interface, 4 fixing screws, 2 plugs g Shut-off valve h User interface cover

i Hinges for user interface cover

1x 2x

4 Reinstall the top panel.

4 About the units and options

4.1 Identification

NOTICE

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

4.1.1 Identification label: Indoor unit

Location

Model identification

Example: E HV H 04 S 18 CA 3V

Code Description

E European model

HV HV=Floor-standing indoor unit with integrated tank

Q H=Heating only Q X=Heating/cooling

04 Capacity class:

Q 04=4.5 kW Q 08=7.5 kW Q 16=16 kW

S Integrated tank material:

S=Stainless steel

18 Integrated tank volume:

Q 18=180 l Q 26=260 l

CA Series

3V Backup heater model

Q 3V Q 9W

4.2 Possible combinations of units and options

4.2.1 List of options for indoor unit

User interface (EKRUCAL1, EKRUCAL2)

The user interface is delivered as an accessory with the unit. An additional user interface is optionally available. The additional user interface can be connected:

Q To have both:

Q control close to the indoor unit Q room thermostat functionality in the principal space to be

heated

Q To have an interface containing other languages

The additional user interface EKRUCAL1 contains the 6 common languages: English, German, French, Dutch, Italian, Spanish.

The additional user interface EKRUCAL2 contains other languages: English, Swedish, Norwegian, Czech, Turkish, Portuguese.

Languages on the user interface can be uploaded by PC software or copied from an user interface to the other.

For installation instructions, see "7.4.5 To connect the user interface" on page 27.

Installer reference guide

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:

Q Alarm output Q Space heating/cooling On/OFF output Q Changeover to external heat source Q Only for EHVH/X16 models: Control signal for bottom plate

heater kit EKBPHTH16A For installation instructions, see the installation manual of the digital I/O PCB and addendum book for optional equipment.

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

5 Application guidelines

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

Q The remote indoor sensor can only be used in case

the user interface is configured with room thermostat functionality.

Q 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 configurator (EKPCCAB1)

The PC cable makes a connection between the switch box of the indoor unit and a PC. It gives the possibility to upload different language files to the user interface and indoor parameters to the indoor unit. For the available language files, contact your local dealer.

The software and corresponding operating instructions are available on Daikin Extranet. For installation instructions, see the installation manual of the PC cable.

4.2.2 Possible combinations of indoor unit and outdoor unit

Indoor unit

Outdoor unit

ERHQ011BAV3 O O O O

ERHQ014BAV3 O O O O

ERHQ016BAV3 O O O O

ERLQ011CAV3 O O O O

ERLQ014CAV3 O O O O

ERLQ016CAV3 O O O O

ERHQ011BAW1 O O O O

ERHQ014BAW1 O O O O

ERHQ016BAW1 O O O O

ERLQ011CAW1 O O O O

ERLQ014CAW1 O O O O

ERLQ016CAW1 O O O O

EHVH16S18CA3V EHVX16S18CA3V EHVH16S26CA9W EHVX16S26CA9W

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

Q 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.

Q For more information about the configuration settings

to optimize heat pump operation, see the configuration chapter.

This chapter contains applications guidelines for:

Q Setting up the space heating/cooling system Q Setting up an auxiliary heat source for space heating Q Setting up the domestic hot water tank Q Setting up the energy metering Q Setting up the power consumption Q Setting up an external temperature sensor

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

5.2 Setting up the space heating/cooling 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:

Q How many rooms are heated (or cooled) by the Daikin

heat pump system?

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

their design leaving water temperature?

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

Installer reference guide

5 Application guidelines

5.2.1 Single room

Under floor heating or radiators – Wired room thermostat

Setup

A Main leaving water temperature zone B One single room

Q The under floor heating or radiators are directly connected to the

indoor unit.

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

is used as room thermostat. Possible installations:

Q User interface (standard equipment) installed in the room

Q User interface (standard equipment) installed at the indoor

Configuration

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature zones:

Q #: [A.2.1.8] Q Code: [7-02]

Benefits

Q Cost effective. You do NOT need an additional external room

thermostat.

Q 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:

Q Stable room temperature matching the desired temperature

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

Q Lowest possible leaving water temperature (higher

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

user interface:

Q For your daily needs, you can use preset values and

Q To deviate from your daily needs, you can temporarily

a User interface used as room thermostat

and used as room thermostat

unit and used for control close to the indoor unit + user interface (optional equipment EKRUCAL) installed in the room and used as room thermostat

Setting Val ue

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

0 (1 LWT zone): Main

(higher comfort)

higher efficiency)

efficiency)

schedules.

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

Under floor heating or radiators – Wireless room thermostat

Setup

A Main leaving water temperature zone B One single room

a Receiver for wireless external room thermostat

Q The under floor heating or radiators are directly connected to the

indoor unit.

Q The room temperature is controlled by the wireless external

room thermostat (optional equipment EKRTR1).

Configuration

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature zones:

Q #: [A.2.1.8] Q Code: [7-02]

External room thermostat for the main zone:

Q #: [A.2.2.4] Q Code: [C-05]

Benefits

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

wireless version.

Q Efficiency. Although the external room thermostat only sends

ON/OFF signals, it is specifically designed for the heat pump

system.

Q Comfort. In case of under floor heating, the wireless external

room thermostat prevents condensation on the floor during

cooling operation by measuring the room humidity.

b Wireless external room thermostat

Setting Valu e

1 (Ext RT control): Unit operation is decided by the external thermostat.

0 (1 LWT zone): Main

Configure according to the setup:

Q 1 (Thermo ON/OFF): When

the used external room thermostat or heat pump convector can only send a thermo ON/OFF condition. No separation between heating or cooling demand.

Q 2 (C/H request): When the

used external room thermostat can send a separate heating/cooling thermo ON/OFF condition.

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

5 Application guidelines

Heat pump convectors

Setup

A Main leaving water temperature zone B One single room

Q The heat pump convectors are directly connected to the indoor

a Remote controller of the heat pump convectors

unit.

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

the heat pump convectors.

Q The space heating/cooling demand signal is sent to one digital

input on the indoor unit (X2M/1 and X2M/4).

Q The space operation mode is sent to the heat pump convectors

by one digital output on the indoor unit (X2M/33 and X2M/34).

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 Val ue

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature

1 (Ext RT control): Unit operation is decided by the external thermostat.

0 (1 LWT zone): Main

zones:

Q #: [A.2.1.8] Q Code: [7-02]

External room thermostat for the main zone:

Q #: [A.2.2.4] Q Code: [C-05]

1 (Thermo ON/OFF): When the used external room thermostat or heat pump convector can only send a thermo ON/OFF condition. No separation between heating or cooling demand.

Benefits

Q Cooling. The heat pump convector offers, besides heating

capacity, also excellent cooling capacity.

Q Efficiency. Optimal energy efficiency because of the interlink

function.

Q Stylish.

Combination: Under floor heating + Heat pump convectors

Q Space heating is provided by:

Q The under floor heating Q The heat pump convectors

Q Space cooling is provided by the heat pump convectors only.

The under floor heating is shut off by the shut-off valve.

Setup

A Main leaving water temperature zone B One single room

Q The heat pump convectors are directly connected to the indoor

a Remote controller of the heat pump convectors

unit.

Q A shut-off valve (field supply) is installed before the under floor

heating to prevent condensation on the floor during cooling operation.

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

the heat pump convectors.

Q The space heating/cooling demand signal is sent to one digital

input on the indoor unit (X2M/1 and X2M/4)

Q The space operation mode is sent by one digital output (X2M/33

and X2M/34) on the indoor unit to:

Q The heat pump convectors Q The shut-off valve

Configuration

Setting Value

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature

1 (Ext RT control): Unit operation is decided by the external thermostat.

0 (1 LWT zone): Main

zones:

Q #: [A.2.1.8] Q Code: [7-02]

External room thermostat for the main zone:

Q #: [A.2.2.4] Q Code: [C-05]

1 (Thermo ON/OFF): When the used external room thermostat or heat pump convector can only send a thermo ON/OFF condition. No separation between heating or cooling demand.

Benefits

Q Cooling. Heat pump convectors provide, besides heating

capacity, also excellent cooling capacity.

Q Efficiency. Under floor heating has the best performance with

Altherma LT.

Q Comfort. The combination of the two heat emitter types

provides:

Q The excellent heating comfort of the under floor heating Q The excellent cooling comfort of the heat pump convectors

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.

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

5 Application guidelines

M2M1

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.

Setup

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

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

the indoor unit.

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

interface used as thermostat.

Q A thermostatic valve is installed before the under floor heating in

each of the other rooms.

Configuration

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature zones:

Q #: [A.2.1.8] Q Code: [7-02]

Benefits

Q Cost effective. Q Easy. Same installation as for one room, but with thermostatic

valves.

a User interface

NOTICE

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

Setting Val ue

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

0 (1 LWT zone): Main

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

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

b Bypass valve

avoid leaving water supply when there is no heating or cooling

demand.

Q A bypass valve must be installed to make water recirculation

possible when all shut-off valves are closed.

Q The user interface connected to 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.

Q 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 Valu e

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature

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

0 (1 LWT zone): Main

zones:

Q #: [A.2.1.8] Q Code: [7-02]

Benefits

Compared with under floor heating or radiators for one room:

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

schedules, for each room via the room thermostats.

Heat pump convectors

Setup

Installer reference guide

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

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

a Remote controller of the heat pump convectors

the heat pump convectors.

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

5 Application guidelines

Q The user interface connected to the indoor unit decides the

space operation mode.

Q The heating or cooling 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.

NOTICE

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

Configuration

Setting Val ue

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature

1 (Ext RT control): Unit operation is decided by the external thermostat.

0 (1 LWT zone): Main

zones:

Q #: [A.2.1.8] Q Code: [7-02]

Benefits

Compared with heat pump convectors for one room:

Q 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

Setup

NOTICE

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:

Q #: [A.2.1.7] Q Code: [C-07]

Number of water temperature

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

0 (1 LWT zone): Main

zones:

Q #: [A.2.1.8] Q Code: [7-02]

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:

Q Main zone = Zone with the lowest design temperature in

heating, and the highest design temperature in cooling

Q Additional zone = The other zone

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)/increase (in cooling) the leaving water temperature when the additional zone has demand.

Typical example:

A BC

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

a External room thermostat

Q For each room with heat pump convectors: The heat pump

b Remote controller of the heat pump convectors

convectors are directly connected to the indoor unit.

Q For each room with under floor heating: Two shut-off valves

(field supply) are installed before the under floor heating:

Q A shut-off valve to prevent hot water supply when the room

has no heating demand

Q A shut-off valve to prevent condensation on the floor during

cooling operation of the rooms with heat pump convectors

Q For each room with heat pump convectors: The desired room

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

Q For each room with under floor heating: The desired room

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

Q 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.

Heat emitters: Design

Room (zone)

temperature

Living room (main zone) Under floor heating:

Q In heating: 35°C Q In cooling: 20°C (only

refreshment, no real cooling allowed)

Bed rooms (additional zone) Heat pump convectors:

Q In heating: 45°C Q In cooling: 12°C

Setup

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

5 Application guidelines

abcdefgh j

FHL1

FHL2

FHL3

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

Q For the main zone:

Q A mixing valve station is installed before the under floor

c Mixing valve station

heating.

Q The pump of the mixing valve station is controlled by the

ON/OFF signal on the indoor unit (X2M/5 and X2M/7; normal closed shut-off valve output).

Q The room temperature is controlled by the user interface,

which is used as room thermostat.

Q For the additional zone:

Q The heat pump convectors are directly connected to the

indoor unit.

Q The desired room temperature is set via the remote

controller of the heat pump convectors for each room.

Q The heating or cooling 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 the desired additional leaving water temperature when there is an actual demand.

Q 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 Val ue

Unit temperature control:

Q #: [A.2.1.7] Q Code: [C-07]

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

Note:

Q Main room = user interface

used as room thermostat functionality

Q Other rooms = external

room thermostat functionality

Number of water temperature zones:

Q #: [A.2.1.8] Q Code: [7-02]

In case of heat pump convectors: External room thermostat for the

additional zone:

Q #: [A.2.2.5] Q Code: [C-06]

1 (2 LWT zones): Main + additional

1 (Thermo ON/OFF): When the used external room thermostat or heat pump convector can only send a thermo ON/OFF condition. No separation between heating or cooling demand.

Shut-off valve output Set to follow the thermo demand

of the main zone.

Shut-off valve If the main zone must be shut off

during cooling mode to prevent condensation on the floor, set it accordingly.

At the mixing valve station Set the desired main leaving

water temperature for heating and/or cooling.

Benefits

Q Comfort.

Q The smart room thermostat functionality can decrease or

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

Q The combination of the two heat emitter systems provides

the excellent heating comfort of the under floor heating, and the excellent cooling comfort of the heat pump convectors.

Q Efficiency.

Q Depending on the demand, the indoor unit supplies

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

Q Under floor heating has the best performance with

Altherma LT.

5.3 Setting up an auxiliary heat source for space

heating

Q Space heating can be done by:

Q The indoor unit

Q An auxiliary boiler (field supply) connected to the system Q 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.

Q 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

Q 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.

Q During heating operation of the auxiliary boiler, the

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

Setup

Q Integrate the auxiliary boiler as follows:

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

5 Application guidelines

a Outdoor unit b Indoor unit c Heat exchanger d Backup heater e Pump

f Shut-off valve

g Motorised 3-way valve (delivered with DHW tank)(field

supply)

h Non-return valve

i Shut-off valve j Collector (field supply)

k Auxiliary boiler (field supply)

l Aquastat valve (field supply)

m DHW tank (option)

n Heat exchanger coil

FHL1...3 Under floor heating

NOTICE

Q Make sure the auxiliary boiler and its integration in the

system complies with applicable legislation.

Q Daikin is NOT responsible for incorrect or unsafe

situations in the auxiliary boiler system.

Q Make sure the return water to the heat pump does NOT exceed

55°C. To do so:

Q Set the desired water temperature via the auxiliary boiler

controller to maximum 55°C.

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

heat pump.

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

below 55°C.

Q Install non-return valves. Q Make sure to only have one expansion vessel in the water

circuit. An expansion vessel is already is already premounted in the indoor unit.

Q Install the digital I/O PCB (option EKRP1HB). Q Connect X1 and X2 (changeover to external heat source) on the

PCB to the auxiliary boiler thermostat.

Q To setup the heat emitters, see setting up the space

heating/cooling application guidelines).

Q Setup: Connect the following field wiring:

Com

Indoor/Auto/Boiler

K2AK1A

Indoor

X2M

1234 XY

K2AK1A

BTIBoiler thermostat input

A Auxiliary contact (normal closed)

H Heating demand room thermostat (optional) K1A Auxiliary relay for activation of indoor unit (field supply) K2A Auxiliary relay for activation of boiler (field supply)

Indoor Indoor unit

Auto Automatic

Boiler Boiler

NOTICE

Q Make sure the auxiliary contact has enough differential

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

Q 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.

Q 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 can be:

Q Integrated in the indoor unit Q Installed standalone as option

5.4.1 System layout – Integrated DHW tank

Configuration

Via the user interface (quick wizard):

Q Set the use of a bivalent system as external heat source. Q Set the bivalent temperature and hysteresis.

NOTICE

Q Make sure the bivalent hysteresis has enough

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

Q 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.

Q Frequent changeover may cause corrosion of the

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

Changeover to external heat source decided by an auxiliary contact

Q Only possible in external room thermostat control AND one

leaving water temperature zone (see setting up space heating/cooling application guideline).

Q The auxiliary contact can be:

Q An outdoor temperature thermostat Q An electricity tariff contact Q A manually operated contact Q …

abcd hh if

a Outdoor unit b Indoor unit c Heat exchanger d Backup 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

FHL1

FHL2

FHL3

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

5 Application guidelines

5.4.2 System layout – Standalone DHW tank

abcde hfg

a Outdoor unit b Indoor unit c Heat exchanger d Backup heater e Pump

f Shut-off valve g Motorised 3-way valve h Collector (field supply)

i DHW tank

j Heat exchanger coil

FHL1...3 Under floor heating

FHL1

FHL2

FHL3

5.4.3 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 volume and desired temperature for the DHW tank consists of:

1 Determining the DHW consumption (equivalent hot water

volume at 40°C).

2 Determining the volume and desired temperature for the DHW

tank.

Possible DHW tank volumes

Typ e Possible volumes

Integrated DHW tank

Standalone DHW tank

Energy saving tips

Q If the DHW consumption differs from day to day, you can

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

Q 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.

Q The heat pump itself can produce domestic hot water of

maximum 55°C (50°C if outdoor temperature is low). The electrical resistance integrated in the heat pump can higher 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.

Q The higher the outdoor temperature, the better the performance

of the heat pump.

Q 180 l Q 260 l

Q 150 l Q 200 l Q 300 l

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

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

Q If energy prices are lower during the night, Daikin

recommends to heat up the DHW tank during the night.

Q When the heat pump produces domestic hot water, it cannot

heat up a space. When 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 demand.

Determining the DHW consumption

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

Question Typical water volume

How many showers are needed per day?

How many baths are needed per

1 shower = 10 min x 10 l/min = 100 l

1 bath = 150 l

day?

How much water is needed at the

1sink = 2min x 5l/min = 10l

kitchen sink per day?

Are there any other domestic hot

—

water needs?

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

Q 3 showers Q 1 bath Q 3 sink volumes

Then the DHW consumption = (3x100 l) + (1x150 l) + (3x10 l) = 480 l

Determining the volume and desired temperature for the DHW tank

Formula Example

= V2 + V2x (T2- 40) / (40 - T1) If:

= V1 x (40 - T1)/ (T2-T1) If:

V1: DHW consumption (equivalent hot water volume at 40°C) V2: Required DHW tank volume if only heated once T2: DHW tank temperature T1: Cold water temperature

Q V

Q T

Then V

Q V

Q T

Then V

= 180 l

= 54°C

= 15°C

= 280 l

= 480 l

= 54°C

= 15°C

= 307 l

5.4.4 Setup and configuration – DHW tank

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

several times during the day.

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

you can use the following energy sources:

Q Thermodynamic cycle of the heat pump Q Electrical backup heater (for integrated DHW tank) Q Electrical booster heater (for standalone DHW tank) Q Solar panels

Q For more information about:

Q Optimizing the energy consumption for producing domestic

hot water, see the configuration chapter.

Q Connecting the electrical wiring of the standalone DHW

tank to the indoor unit, see the installation chapter.

Q Connecting the water piping of the standalone DHW tank to

the indoor unit, see the installation manual of the DHW tank.

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

5 Application guidelines

c.1

c.2

c.3

c.4

≥0.5 m

5.4.5 Combination: Standalone DHW tank + Solar panels

By connecting the DHW tank to solar panels, the DHW tank can be heated by solar energy.

For installation instructions, see the installation manual of the solar kit and addendum book for optional equipment.

a Solar panels b Solar pump station

c Solar pump station controller with temperature sensors c1 Tank temperature sensor c2 Return temperature sensor to solar panels c3 Supply temperature with flow meter from solar panels c4 Solar panel temperature sensor

d Solar kit

e DHW temperature sensor of the unit

f Solenoid 2-way valve (only for UK). Obligatory for

compliance to UK building regulation G3. Heating system Example of unit

5.4.6 DHW pump for instant hot water

Setup

5.4.7 DHW pump for disinfection

Setup

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

d f

a Indoor unit b DHW tank c DHW pump d Heater element e Non-return valve

f Shower g Cold water h Domestic hot water OUT

i Recirculation connection

responsibility of the installer.

Q For the integrated DHW tank, the temperature of the DHW tank

can be set to maximum 60°C. If applicable legislation requires higher temperature for disinfection, you can connect a DHW pump and heater element as shown above.

Q 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 the configuration chapter.

5.5 Setting up the energy metering

Q Via the user interface, you can read out the following energy

data:

Q Produced heat Q Consumed energy

Q You can read out the energy data:

Q For space heating Q For space cooling Q For domestic hot water production

Q You can read out the energy data:

Q Per month Q Per year

a Indoor unit b DHW tank c DHW pump

f Shower g Cold water h Domestic hot water OUT

i Recirculation connection

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

at the tap.

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

responsibility of the installer.

Q For more information about connecting the recirculation

connection (for integrated DHW tank), see the installation chapter.

5.5.1 Produced heat

Q Applicable for all models. Q The produced heat is calculated internally based on:

Q The leaving and entering water temperature Q The flow rate Q The power consumption of the booster heater (if applicable)

in the domestic hot water tank

Q Setup and configuration:

Q No additional equipment needed. Q Only in case a booster heater is present in the system,

measure its capacity (resistance measurement) and set the capacity via the user interface. Example: If you measure a booster heater resistance of 17.1 Ω, the capacity of the heater at 230 V is 3100 W.

Configuration

Q For more information, see the configuration chapter. Q You can program a schedule to control the DHW pump via the

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

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

5 Application guidelines

fed

ABC

gfe

ABC

ccd



5.5.2 Consumed energy

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

Q Calculating Q Measuring

NOTICE

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

Calculating the consumed energy

Q Only applicable for EHBH/X04+08 and EHVH/X04+08. Q The consumed energy is calculated internally based on:

Q The actual power input of the outdoor unit Q The set capacity of the backup heater and booster heater Q The voltage

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

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

Q The backup heater (step 1 and step 2) Q The booster heater

Measuring the consumed energy

Q Applicable for all models. Q Preferred method because of higher accuracy. Q Requires external power meters. Q Setup and configuration:

Q For the specifications of each type of meter, see technical

data.

Q When using electrical power meters, set the number of

pulses/kWh for each power meter via the user interface. Consumed energy data for EHVH/X16 and EHBH/X16 models will only be available if this setting is configured.

NOTICE

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

General rule

One power meter that covers the entire system is sufficient.

Setup

Connect the power meter to X5M/7 and X5M/8.

Power meter type

In case of… Use a… power meter

Q Single-phase outdoor unit Q Backup heater supplied

from a single-phase grid (i.e. the backup heater model is *3V or *9W connected to a single-phase grid)

In other cases (i.e. a three-phase outdoor unit and/or a 9W* backup heater model connected to a three-phase grid)

Single-phase

Three-phase

Example

Single-phase power meter Three-phase power meter

A Outdoor unit B Indoor unit C DHW tank a Electrical cabinet (L

/N)

b Power meter (L c Fuse (L

d Outdoor unit (L e Indoor unit (L f Backup heater (L g Booster heater (L

/N)

A Outdoor unit B Indoor unit C DHW tank a Electrical cabinet (L

b Power meter (L c Fuse (L d Fuse (L e Outdoor unit (L f Indoor unit (L g Backup heater (L

1/L2/L3

/N)

1/L2/L3

/N)

1/L2/L3

h Booster heater (L

1/L2/L3

/N)

Exception

Q You can use a second power meter if:

Q The power range of one meter is insufficient. Q The electrical meter cannot easily be installed in the

electrical cabinet.

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

uncommon), because of technical limitations of power meters.

Q Connection and setup:

Q Connect the second power meter to X5M/9 and X5M/10. Q 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.

Q See preferential kWh rate power supply for an example with two

power meters.

5.5.4 Preferential kWh rate power supply

General rule

Q Power meter 1: Measures the outdoor unit. Q Power meter 2: Measures the rest (i.e. indoor unit, backup

heater and optional booster heater).

Setup

Q Connect power meter 1 to X5M/7 and X5M/8. Q Connect power meter 2 to X5M/9 and X5M/10.

Power meter types

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

the power supply of the outdoor unit.

Q Power meter 2:

Q In case of a single-phase backup heater configuration, use

a single-phase power meter.

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

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

Example

5 8

eef

ihg

ABC



Single-phase outdoor unit with a three-phase backup heater:

A Outdoor unit B Indoor unit C DHW tank

a Electrical cabinet (L

/N): Preferential kWh rate power

supply

b Electrical cabinet (L

/N): Normal kWh rate power

1/L2/L3

supply

c Power meter (L

d Power meter (L

e Fuse (L

f Fuse (L

g Outdoor unit (L

h Indoor unit (L

i Backup heater (L

j Booster heater (L

/N)

1/L2/L3

/N)

1/L2/L3

/N)

1/L2/L3

/N)

5.6 Setting up the power consumption control

Q The power consumption control:

Q Is only applicable for EHBH/X04+08 and EHVH/X04+08. Q Allows you to limit the power consumption of the entire

system (sum of outdoor unit, indoor unit, backup heater and optional booster heater).

Q Configuration: Set the power limitation level and how it has

to be achieved via the user interface.

Q The power limitation level can be expressed as:

Q Maximum running current (in A) Q Maximum power input (in kW)

Q The power limitation level can be activated:

Q Permanently Q 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. Example: The maximum power input depends on the area of the house and an annual fee has to be paid to the electrical company according to the size of the installed field fuse. By permanently limiting the maximum power or current of the system, you can install smaller field fuses.

NOTICE

When the current control is intended to reduce the installed field fuse sizes, the field fuse will trip to protect the field wires in case of overcurrents caused by the unit. Make sure the selection of the field fuse complies with applicable legislation.

5 Application guidelines

PiPower input

t Time

DI Digital input (power limitation level)

a Power limitation active b Actual power input

Setup and configuration

Q No additional equipment needed. Q Set the power consumption control settings in [A.7.2] via the

user interface (for the description of all settings, see configuration chapter):

Q Select full time limitation mode Q Select the type of limitation (power in kW or current in A) Q Set the desired power limitation level

NOTICE

Mind the following guidelines when selecting the desired power limitation level:

Q Set a minimum power consumption of ±3.6 kW to

guarantee defrost operation. Otherwise, if defrosting is interrupted several times, the heat exchanger will freeze up.

Q Set a minimum power consumption of ±3 kW to

guarantee space heating and DHW production by allowing at least one electrical heater (backup heater step 1 or booster heater).

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:

Q Current (in A) Q 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…).

4 3 2

A8P

ABC

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

a Power limitation activation (4 digital inputs) b Backup heater c Booster heater

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

5 Application guidelines

DI1

DI3

DI4

Then power consumption is limited as follows:

PiPower input

t Time

DI Digital inputs (power limitation levels)

a Power limitation active b Actual power input

Setup

Q Demand PCB (option EKRP1AHTA) needed. Q Maximum four digital inputs are used to activate the

corresponding power limitation level:

Q DI1 = strongest limitation (lowest energy consumption) Q DI4 = weakest limitation (highest energy consumption)

Q For the specification and the connection of the digital inputs, see

technical data > wiring diagram.

Configuration

Set the power consumption control settings in [A.7.2] via the user interface (for the description of all settings, see configuration chapter):

Q Select activation by digital inputs. Q Select the type of limitation (power in kW or current in A). Q Set the desired power limitation level corresponding to each

digital input.

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.

Then set the heater priority

If… has priority

Domestic hot water production Booster heater.

Space heating Backup heater.

2 Turns OFF all electrical heaters.

3 Limits the outdoor unit

4 Turns OFF the outdoor unit.

Example

If the configuration is as follows:

Q Power limitation level does NOT allow operation of both booster

heater and backup heater (step 1 and step 2).

Q Heater priority = Booster heater.

via the user interface to…

Result: The backup heater will be turned OFF first.

Result: The booster heater will be turned OFF first.

AB C

PhProduced heat C

A Outdoor unit B Booster heater C Backup heater

a Limited outdoor unit operation b Full outdoor unit operation c Booster heater turned ON d Backup heater step 1 turned ON e Backup heater step 2 turned ON

Consumed energy

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

Q In room thermostat control, the user interface is used as room

thermostat and it measures the indoor ambient temperature. Therefore, the user interface must be installed on a location:

Q Where the average temperature in the room can be

detected

Q That is NOT exposed to direct sunlight Q That is NOT near a heat source Q That is NOT affected by outside air or air draught because

of, for example, door opening/closing

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

indoor sensor (option KRCS01-1).

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

the remote outdoor sensor.

Q Configuration: Select room sensor [A.2.2.B].

Outdoor ambient temperature

Q In the outdoor unit, the outdoor ambient temperature is

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

Q At the north side of the house or at the side of the house

where the most heat emitters are located

Q That is NOT exposed to direct sunlight

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

outdoor sensor (option EKRSCA1).

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

the remote outdoor sensor.

Q Configuration: Select outdoor sensor [A.2.2.B]. Q During suspend (see configuration), the outdoor unit is turned

down to reduce the standby energy losses. As a result, the outdoor ambient temperature is NOT read out.

Q 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 and in the automatic heating/cooling changeover logic. To protect the outdoor unit, the internal sensor of the outdoor unit is always used.

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

6 Preparation

>500

>10>10

(mm)

FCU1

FCU2

FCU3

FHL1

FHL2

FHL3

e f

gf h

65°C

6 Preparation

6.1 Preparing 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 the installation location with sufficient place for carrying the unit in and out of the site.

6.1.1 Installation site requirements of the indoor unit

Q Mind the measurement 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

(a) Check the outdoor unit installation manual. (b) When <5 m, you need to recharge the outdoor unit (check the

Q Mind the following spacing installation guidelines:

outdoor unit installation manual).

75 m

30 m

(a)

(b)

6.2 Preparing water piping

6.2.1 Water circuit requirements

Q Use the indoor unit only in a closed water system.

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

Q The maximum water pressure is 4 bar.

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

Q All installed piping and piping accessories (valve,

connections,…) must withstand the following temperatures:

INFORMATION

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

Do NOT install the unit in places such as:

Q Where there is mist of mineral oil, oil spray or vapour.

Plastic parts may deteriorate, and cause them to fall out or water to leak.

Q Do NOT install the unit in sound sensitive areas (e.g. near a

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

Q 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.

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

bathroom.

Q In places where frost is possible. Ambient temperature around

the indoor unit should be >5°C.

Q The indoor unit is designed for indoor installation only and for

ambient temperatures ranging 5~35°C in cooling mode and 5~30°C in heating mode.

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

a Outdoor unit b Indoor unit c Heat exchanger d Backup 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)

FHL1...3 Floor heating loop

Q Make all water piping connections in accordance with the

applicable legislation and the outlook diagram that is delivered with the unit, respecting the water inlet and outlet.

Q Do NOT use excessive force when connecting the piping.

Deformation of the piping can cause malfunctioning of the unit.

Q Provide drain taps at all low points of the system in order to allow

complete drainage of the water circuit.

Q Provide a proper drain for the pressure relief valve to avoid

water dripping out of the unit. See "7.3.2 To connect the pressure relief valve to the drain" on page 23.

Q Provide air vents at all high points of the system, which must

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

Installer reference guide

6Preparation

FHL1

FHL2

FHL3

M2T2M3

fdcba

g h

Q Only use materials that are compatible with water used in the

system and with the materials used in the indoor unit.

Q Check that all components in the field piping can withstand the

water pressure and water temperature.

Q 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.

Q Never use Zn-coated parts in the water circuit. Because the

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

Q Only use appropriate tooling to handle brass, which is a soft

material. If NOT, pipes will get damaged.

Q 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 61 for the external static pressure curves of the indoor unit.

Q You can find the minimum required water flow for the indoor unit

operation in the following table. When the water flow is lower, flow error 7H will be displayed and the indoor unit will be stopped.

Model Minimum water flow (l/min)

04 5

08+16 11

Q When using a 2-way valve in the water circuit, the maximum

change-over time of the valve must be 60 seconds.

Q It is strongly recommended to install an additional filter on the

heating water circuit. Especially to remove metallic particles from the filed heating piping, it is advised to use a magnetic or cyclone filter, which can remove small particles. Small particles may damage the unit and will NOT be removed by the standard filter of the heat pump system.

Q If air, moisture or dust gets into the water circuit, problems may

occur. To prevent this:

Q Only use clean pipes Q Hold the pipe end downwards when removing burrs. Q Cover the pipe end when inserting it through a wall, to

prevent dust and/or particles entering the pipe.

Q Use a decent thread sealant to seal connections.

Q For safety reasons, it is NOT allowed to add any kind of glycol to

the water circuit.

Q 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. 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. The disinfection function provided on the equipment is specified in the operation manual of the indoor unit.

Q 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.

Q The installation must be in compliance with the applicable

legislation and may require additional hygienic installation measures.

Q In accordance with the applicable legislation, it may be

necessary to install thermostatic mixing valves.

Q 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.

Q 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

6.2.2 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)

6.2.3 To check the water volume

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:

Q You must check the minimum and maximum water volume. Q 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 liter, 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 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.

a Outdoor unit b Indoor unit c Heat exchanger d Backup heater e Pump

f Shut-off valve g Collector (field supply) h By-pass valve (field supply)

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)

Installer reference guide

EHVH/X16

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

Maximum water volume

0.3

0.5

1.5

2.5

10050

150 200 250 300 350 400 450

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

a Pre-pressure (bar) b Maximum water volume (l)

Example: Maximum water volume and expansion vessel prepressure

6 Preparation

a Schräder valve

6.2.5 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.

Installation

height

difference

(a)

≤280 l >280 l

≤7 m No pre-pressure

adjustment is required.

>7 m Do the following:

Q Increase the pre-

pressure.

Q 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.

6.2.4 Changing the pre-pressure of the expansion vessel

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:

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

Water volume

Do the following:

Q Decrease the pre-

pressure.

Q Check if the water

volume does NOT exceed the maximum allowed water volume.

The expansion vessel of the indoor unit is too small for the installation.

Example 2

The indoor unit is installed at the highest point in the water circuit. The total water volume in the water circuit is 350 l. Actions:

Q Because the total water volume (350 l) is more than the default

water volume (280 l), the pre-pressure must be decreased.

Q The required pre-pressure is:

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

Q The corresponding maximum water volume at 0.3 bar is 410 l.

(See the graph in the chapter above).

Q Because 350 l is lower than 410 l, the expansion vessel is

appropriate for the installation.

6.3 Preparing electrical wiring

6.3.1 About preparing electrical wiring

WARNING

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

equipment will break down.

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

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

Q Install the required fuses or circuit breakers.

Q Secure the electrical wiring with cable ties so that the

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

Q Do NOT use taped wires, stranded conductor wires,

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

Q 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.

valve of the expansion vessel.

WARNING

Q All wiring must be performed by an authorized

electrician and must comply with the applicable legislation.

Q Make electrical connections to the fixed wiring.

Q All components procured on the site and all electrical

construction must comply with the applicable legislation.

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

6Preparation

5 8

8 0

5 8

5 0

WARNING

The backup heater should have a dedicated power supply.

6.3.2 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.

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

Q interrupt power supply to the equipment for certain periods of

time;

Q demand that the equipment only consumes a limited amount of

electricity during certain periods of time. The indoor unit is designed to receive an input signal by which the unit switches into forced off mode. At that moment, the outdoor unit compressor will not operate. Whether the power supply is interrupted or not, the wiring to the unit is different.

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.

6.3.3 Overview of electrical connections except external actuators

Preferential kWh rate power supply

Normal power supply

Power supply is NOT interrupted Power supply is interrupted

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 backup 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)

6.3.4 Overview of electrical connections for external and internal actuators

The following illustration shows the required field wiring.

INFORMATION

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

During preferential 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.

Installer reference guide

a Indoor unit

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

7Installation

Item Description Wires

Outdoor unit and indoor unit power supply

1 Power supply for

outdoor unit

2 Power supply and

2+GND or 3+GND

(a)

(c)

interconnection cable to indoor unit

3 Power supply for

See table below. —

backup heater

4 Preferential kWh rate

(d)

power supply (voltage free contact)

5 Normal kWh rate power

26.3A

supply

User interface

6User interface 2

(e)

Optional equipment

11 Power supply for

(b)

bottom plate heater

12 Room thermostat 3 or 4

13 Outdoor ambient

100 mA

(b)

temperature sensor

14 Indoor ambient

(b)

temperature sensor

15 Heat pump convector 4

100 mA

Field supplied components

16 Shut-off valve 2

17 Electricity meter 2 (per meter)

18 Domestic hot water

(b)

pump

19 Alarm output 2

20 Changeover to external

(b)

heat source control

21 Space cool/heat

(b)

operation control

22 Power consumption

digital inputs

(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.

Applicable for both single user interface and dual use interface connection.

Backup heater

type

Power supply

2 (per input signal)

Required number of

(b)

conductors

*3V 1x 230 V 2+GND

*9W 1x 230 V 2+GND + 2 bridges

3x 230 V 3+GND + 1 bridge

3x 400 V 4+GND

Maximum

running current

(b)

7 Installation

7.1 Opening the units

7.1.1 To open the indoor unit and switch box

1 Loosen and remove the screws at the bottom of the unit. 2 Slide the front panel of the unit downwards and remove it. 3 Loosen and remove the 4 screws that fix the top panel. 4 Remove the top panel from the unit.

5 Loosen and remove the 4 screws that fix the switch box cover. 6 Remove the switch box cover.

cover

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

7 Installation

≤1°

7.2 Mounting the indoor unit

7.2.1 To install the indoor unit

1 Lift the indoor unit from the pallet and place it on the floor.

2 Slide the indoor unit into position. 3 Adjust the height of the leveling feet to compensate for floor

irregularities. The maximum allowed deviation is 1°.

120kg

7.3 Connecting the water piping

7.3.1 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.

NOTICE

To avoid damage to the surroundings in case of water leakage, it is recommended to close the cold water inlet stop valves during periods of absence.

2 Screw the indoor unit nuts on the shut-off valves. 3 Connect the domestic hot water in and out pipes to the indoor

unit.

NOTICE

Q A drain device and pressure relief device should be

installed on the cold water inlet connection of the domestic hot water cylinder.

Q 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.

Q It is recommended to install a pressure reducing valve

on the cold water inlet in accordance with the applicable legislation.

Q An expansion vessel should be installed on the cold

water inlet in accordance with the applicable legislation.

Q It is recommended to install the pressure relief valve

on higher position as 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 relieve 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.

7.3.2 To connect the pressure relief valve to the drain

The blow out of the pressure relief valve is coming out of the backside of the unit.

To facilitate service and maintenance, 2 shut-off valves are provided. Mount the valves on the water inlet and on the water outlet. Mind their the position. Orientation of the integrated drain and fill valves is important for servicing.

1 Install the shut-off valves on the water pipes.

ac bd

a Space heating/cooling water out b Space heating/cooling water in c Domestic hot water out

Installer reference guide

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. Shut-off valves are field supplied.

The blow out should be connected to an appropriate drain according to the applicable legislation. It is recommended to use a tundish.

a Pressure relief blow-out

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

7Installation

7.3.3 To fill the water circuit

1 Connect the water supply hose to the fill valve.

2 Open the fill valve. 3 Make sure that the automatic air purge valve is open (at least 2

turns).

INFORMATION

For location of the air purge valve, see Components: Indoor unit.

4 Fill the circuit with water until the manometer indicates a

pressure of ±2.0 bar.

5 Purge as much air as possible from the water circuit.

NOTICE

Q Air in the water circuit can cause malfunctioning of the

backup heater. During filling, it may not be possible to remove all the air from the circuit. Remaining air will be removed through the automatic air purge valves during the initial operating hours of the system. Additional filling with water afterwards may be required.

Q To purge the system, use the special function as

described in To perform an air purge. This function should be used to purge the heat exchanger coil of the domestic hot water tank.

7.4 Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

INFORMATION

More information about the legend and the location of the wiring diagram of the unit can be found in Wiring diagram.

7.4.1 About electrical compliance

Only for ERLQ006CAV3+ERLQ008CAV3

Equipment complying with EN/IEC 61000-3-12 (European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to public lowvoltage systems with input current >16 A and ≤75 A per phase.).

Only for indoor units

See To connect the backup heater power supply.

6 Close the fill valve. 7 Disconnect the water supply hose from the fill valve.

NOTICE

The water pressure indicated on the manometer will vary depending on the water temperature (higher pressure at higher water temperature).

However, at all times water pressure shall remain above 1 bar to avoid air entering the circuit.

7.3.4 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 that free water flow through the discharge pipe.

7.3.5 To insulate the water piping

The piping in the complete water circuit must be insulated to prevent condensation during cooling operation and reduction of the heating and cooling capacity.

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

EHVH/X16 Daikin Altherma - Low Temperature Split 4P313777-1 – 2012.05

Installer reference guide

7 Installation

X1M

123

X2M

X5M

X6YB

X6YA

X6Y

X1A X19A

30 31

7.4.2 To connect the electrical wiring on the indoor unit

1 To open the indoor unit, see To open the indoor unit. 2 Wiring should enter the unit from the top:

a b+c

Routing Possible cables (depending on unit type and installed options)

a Low voltage

b High voltage power supply

c High voltage control signal

Q User interface Q Power consumption digital inputs (field supply) Q Outdoor ambient temperature sensor (option) Q Indoor ambient temperature sensor (option) Q Electrical meters (field supply)

Q Interconnection cable Q Normal kWh rate power supply Q Preferential kWh rate power supply Q Power supply for backup heater Q Power supply for bottom plate heater (option)

Q Preferential power supply contact Q Heat pump convector (option) Q Room thermostat (option) Q Shut-off valve (field supply) Q Domestic hot water pump (field supply) Q Alarm output Q Changeover to external heat source control Q Space cool/heat operation control

3 Routing of the wiring inside the unit should be as follows:

a b+c

4 Fix the cable with cable ties to the cable tie mountings to ensure

strain relief and to make sure that it does NOT come in contact with the piping and sharp edges.

CAUTION

Do NOT push or place redundant cable length in the unit.

7.4.3 To connect the main power supply

1 Connect the main power supply.

In case of normal kWh rate power supply

Installer reference guide

Daikin Altherma - Low Temperature Split

4P313777-1 – 2012.05

EHVH/X16

+ 58 hidden pages