Daikin EWAQ005BAVP, EWYQ004BAVP, EWYQ005BAVP, EKCB07CAV3, EK2CB07CAV3 Installer reference guide

...

Installer reference guide

Packaged air-cooled water chillers and packaged air

to water heat pumps

EWAQ004BAVP EWAQ005BAVP   EWYQ004BAVP EWYQ005BAVP   EKCB07CAV3 EK2CB07CAV3  EKMBUHCA3V3 EKMBUHCA9W1

Installer reference guide

Packaged air-cooled water chillers and packaged air to water heat

pumps

English

Table of Contents

1 General safety precautions 3

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

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

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

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

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

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

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

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

1.2.6 Electrical ..................................................................... 5

2 About the documentation 6

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

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

3 About the box 7

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

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

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

3.2.2 To remove the accessories from the outdoor unit....... 7

3.3 Control box ................................................................................ 8

3.3.1 To unpack the control box........................................... 8

3.3.2 To remove the accessories from the control box ........ 8

3.4 Option box ................................................................................. 8

3.4.1 To unpack the option box............................................ 9

3.4.2 To remove the accessories from the option box......... 9

3.5 Backup heater ........................................................................... 9

3.5.1 To unpack the backup heater ..................................... 9

3.5.2 To remove the accessories from the backup heater... 9

4 About the units and options 9

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

4.2 Identification .............................................................................. 10

4.2.1 Identification label: Outdoor unit ................................. 10

4.2.2 Identification label: Control box................................... 10

4.2.3 Identification label: Option box.................................... 10

4.2.4 Identification label: Backup heater.............................. 10

4.3 Combining units and options ..................................................... 10

4.3.1 Possible combinations of outdoor unit and options..... 10

4.3.2 Possible options for the outdoor unit........................... 11

4.3.3 Possible options for the control box............................ 11

4.3.4 Possible options for the option box............................. 12

5 Application guidelines 12

5.1 Overview: Application guidelines............................................... 12

5.2 Setting up the space heating/cooling system ............................ 12

5.2.1 Single room................................................................. 12

5.2.2 Multiple rooms – OneLWT zone ................................ 14

5.3 Setting up an auxiliary heat source for space heating............... 16

5.4 Setting up the energy metering ................................................. 17

5.4.1 Produced heat............................................................. 17

5.4.2 Consumed energy....................................................... 17

5.4.3 Normal kWh rate power supply................................... 18

5.4.4 Preferential kWh rate power supply ............................ 18

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

5.5.1 Permanent power limitation ........................................ 19

5.5.2 Power limitation activated by digital inputs ................. 19

5.5.3 Power limitation process ............................................. 20

5.6 Setting up an external temperature sensor ............................... 20

6 Preparation 20

6.1 Overview: Preparation............................................................... 20

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

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

6.2.2 Additional installation site requirements of the

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

6.2.3 Installation site requirements of the control box........... 22

6.2.4 Installation site requirements of the option box............ 22

6.2.5 Installation site requirements of the backup heater ..... 23

6.3 Preparing water piping ............................................................... 23

6.3.1 Water circuit requirements ........................................... 23

6.3.2 Formula to calculate the expansion vessel pre-

pressure ....................................................................... 24

6.3.3 To check the water volume and flow rate .................... 24

6.3.4 Changing the pre-pressure of the expansion vessel.... 25

6.3.5 To check the water volume: Examples ........................ 25

6.4 Preparing electrical wiring .......................................................... 26

6.4.1 About preparing electrical wiring.................................. 26

6.4.2 About preferential kWh rate power supply ................... 26

6.4.3 Overview of electrical connections except external

actuators ...................................................................... 26

6.4.4 Overview of electrical connections for external and

internal actuators ......................................................... 26

7 Installation 28

7.1 Overview: Installation ................................................................. 28

7.2 Opening the units ....................................................................... 28

7.2.1 About opening the units ............................................... 28

7.2.2 To open the outdoor unit.............................................. 28

7.2.3 To open the switch box cover of the outdoor unit ........ 28

7.2.4 To open the control box ............................................... 28

7.2.5 To open the option box ................................................ 29

7.2.6 To open the backup heater .......................................... 29

7.2.7 To open the switch box cover of the backup heater .... 29

7.3 Mounting the outdoor unit........................................................... 29

7.3.1 About mounting the outdoor unit.................................. 29

7.3.2 Precautions when mounting the outdoor unit............... 29

7.3.3 To provide the installation structure ............................. 29

7.3.4 To install the outdoor unit............................................. 30

7.3.5 To provide drainage ..................................................... 31

7.3.6 To prevent the outdoor unit from falling over ............... 31

7.4 Mounting the control box ............................................................ 32

7.4.1 Precautions when mounting the control box ................ 32

7.4.2 To install the control box .............................................. 32

7.5 Mounting the option box ............................................................. 32

7.5.1 Precautions when mounting the option box................. 32

7.5.2 To install the option box ............................................... 32

7.6 Mounting the backup heater....................................................... 32

7.6.1 About mounting the backup heater.............................. 32

7.6.2 Precautions when mounting the backup heater........... 32

7.6.3 To install the backup heater......................................... 33

7.7 Connecting the water piping....................................................... 33

7.7.1 About connecting the water piping............................... 33

7.7.2 Precautions when connecting the water piping............ 33

7.7.3 To connect the water piping......................................... 33

7.7.4 To connect the water piping to the backup heater....... 33

7.7.5 About the valve kit........................................................ 34

7.7.6 To protect the water circuit against freezing ................ 35

7.7.7 To fill the water circuit .................................................. 36

7.7.8 To insulate the water piping ......................................... 37

7.8 Connecting the electrical wiring.................................................. 37

7.8.1 About connecting the electrical wiring.......................... 37

7.8.2 Precautions when connecting the electrical wiring ...... 37

7.8.3 Guidelines when connecting the electrical wiring ........ 37

7.8.4 To connect the electrical wiring on the outdoor unit..... 37

7.8.5 To connect the main power supply .............................. 38

7.8.6 To connect the user interface ...................................... 39

7.8.7 To connect the shut-off valve....................................... 40

7.8.8 To connect the electrical wiring on the control box ...... 41

7.8.9 To connect the control box power supply .................... 41

7.8.10 To connect the interconnection cable between

control box and outdoor unit ........................................ 41

7.8.11 To connect the electrical wiring on the option box ....... 41

7.8.12 To connect the option box power supply ..................... 42

7.8.13 To connect the interconnection cable between option

box and control box...................................................... 42

Installer reference guide

Packaged air-cooled water chillers and packaged air to water heat

EWAQ+EWYQ004+005BAVP

4P492900-1 – 2017.06

pumps

1 General safety precautions

7.8.14 To connect the electrical meters ................................. 42

7.8.15 To connect the power consumption digital inputs ....... 42

7.8.16 To connect the alarm output ....................................... 43

7.8.17 To connect the space cooling/heating ON/OFF

output .......................................................................... 43

7.8.18 To connect the changeover to external heat source ... 43

7.8.19 To connect the electrical wiring on the backup heater 43

7.8.20 To connect the backup heater power supply .............. 44

7.8.21 To connect the backup heater kit to the control box ... 45

7.8.22 To connect the valve kit .............................................. 45

7.9 Finishing the outdoor unit installation ........................................ 46

7.9.1 To close the outdoor unit ............................................ 46

7.10 Finishing the control box installation ......................................... 46

7.10.1 To close the control box .............................................. 46

7.11 Finishing the option box installation .......................................... 46

7.11.1 To close the option box ............................................... 46

7.12 Finishing the backup heater installation .................................... 46

7.12.1 To close the backup heater......................................... 46

8 Configuration 46

8.1 Overview: Configuration ............................................................ 46

8.1.1 To connect the PC cable to the switch box................. 47

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

8.1.3 To copy the system settings from the first to the

second user interface.................................................. 48

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

user interface .............................................................. 48

8.1.5 Quick wizard: Set the system layout after first power

ON............................................................................... 48

8.2 Basic configuration .................................................................... 49

8.2.1 Quick wizard: Language / time and date..................... 49

8.2.2 Quick wizard: Standard............................................... 49

8.2.3 Quick wizard: Options ................................................. 50

8.2.4 Quick wizard: Capacities (energy metering) ............... 52

8.2.5 Space heating/cooling control..................................... 52

8.2.6 Contact/helpdesk number ........................................... 54

8.3 Advanced configuration/optimization......................................... 54

8.3.1 Space heating/cooling operation: advanced............... 54

8.3.2 Heat source settings ................................................... 58

8.3.3 System settings........................................................... 59

8.4 Menu structure: Overview user settings .................................... 63

8.5 Menu structure: Overview installer settings............................... 65

9 Commissioning 66

9.1 Overview: Commissioning......................................................... 66

9.2 Precautions when commissioning ............................................. 66

9.3 Checklist before commissioning................................................ 66

9.4 Checklist during commissioning ................................................ 66

9.4.1 To check the minimum flow rate ................................. 67

9.4.2 Air purge function........................................................ 67

9.4.3 To perform a test run .................................................. 68

9.4.4 To perform an actuator test run .................................. 68

9.4.5 Underfloor heating screed dryout................................ 68

10 Hand-over to the user 70

10.1 About locking and unlocking...................................................... 70

Possible function locks .............................................................. 70

To check if locking is active....................................................... 70

To activate or deactivate a function lock ................................... 70

To activate or deactivate button lock......................................... 70

11 Maintenance and service 70

11.1 Overview: Maintenance and service ......................................... 70

11.2 Maintenance safety precautions................................................ 70

11.2.1 Opening the outdoor unit ............................................ 70

11.2.2 Opening the control box .............................................. 70

11.2.3 Opening the option box ............................................... 70

11.2.4 Opening the backup heater......................................... 70

11.3 Checklist for yearly maintenance of the outdoor unit ................ 70

12 Troubleshooting 71

12.1 Overview: Troubleshooting......................................................... 71

12.2 Precautions when troubleshooting ............................................. 71

12.3 Solving problems based on symptoms....................................... 71

12.3.1 Symptom: The unit is NOT heating or cooling as

expected ...................................................................... 71

12.3.2 Symptom: The compressor does NOT start ................ 72

12.3.3 Symptom: The pump is making noise (cavitation) ....... 72

12.3.4 Symptom: The pressure relief valve opens.................. 73

12.3.5 Symptom: The water pressure relief valve leaks ......... 73

12.3.6 Symptom: The space is NOT sufficiently heated at

low outdoor temperatures ............................................ 73

12.3.7 Symptom: The energy metering (produced heat) is

NOT working correctly ................................................. 73

12.4 Solving problems based on error codes ..................................... 73

12.4.1 Error codes: Overview ................................................. 73

13 Disposal 76

13.1 Overview: Disposal..................................................................... 76

13.2 To pump down............................................................................ 76

14 Technical data 77

14.1 Piping diagram: Outdoor unit...................................................... 77

14.2 Wiring diagram: Outdoor unit ..................................................... 78

14.3 Valve kit necessity ...................................................................... 81

14.4 ESP curve: Outdoor unit............................................................. 83

15 Glossary 84

16 Field settings table 85

1 General safety precautions

1.1 About the documentation

▪ The original documentation is written in English. All other

languages are translations.

▪ The precautions described in this document cover very important

topics, follow them carefully.

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

installation manual and the installer reference guide must be performed by an authorized installer.

1.1.1 Meaning of warnings and symbols

DANGER

Indicates a situation that results in death or serious injury.

DANGER: RISK OF ELECTROCUTION

Indicates a situation that could result in electrocution.

DANGER: RISK OF BURNING

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

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in explosion.

WARNING

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

WARNING: FLAMMABLE MATERIAL

CAUTION

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

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

Installer reference guide

1 General safety precautions

NOTICE

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

INFORMATION

Indicates useful tips or additional information.

Symbol Explanation

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

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

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

1.2 For the installer

1.2.1 General

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

NOTICE

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

WARNING

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

CAUTION

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

NOTICE

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

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

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

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

▪ Name and address of fire department, police and hospital

▪ Name, address and day and night telephone numbers for

obtaining service

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

1.2.2 Installation site

▪ Provide sufficient space around the unit for servicing and air

circulation.

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

vibration.

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

ventilation openings.

▪ Make sure the unit is level.

Do NOT install the unit in the following places:

▪ In potentially explosive atmospheres.

▪ In places where there is machinery that emits electromagnetic

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

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

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

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

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

WARNING

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

DANGER: RISK OF BURNING

▪ Do NOT touch the refrigerant piping, water piping or

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

▪ Do NOT touch any accidental leaking refrigerant.

WARNING

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

CAUTION

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

NOTICE

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

unit.

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

1.2.3 Refrigerant

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

NOTICE

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

NOTICE

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

WARNING

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

WARNING

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

▪ Excessive refrigerant concentrations in a closed room

can lead to oxygen deficiency.

▪ Toxic gas may be produced if refrigerant gas comes

into contact with fire.

Installer reference guide

Packaged air-cooled water chillers and packaged air to water heat

EWAQ+EWYQ004+005BAVP

4P492900-1 – 2017.06

pumps

1 General safety precautions

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump

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

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

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

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

compressor does NOT have to operate.

WARNING

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

NOTICE

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

NOTICE

▪ To avoid compressor breakdown, do NOT charge more

than the specified amount of refrigerant.

▪ When the refrigerant system is to be opened,

refrigerant must be treated according to the applicable legislation.

WARNING

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

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

states the type of refrigerant and necessary amount.

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

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

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

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

▪ Charge the liquid refrigerant as follows:

If Then

A siphon tube is present

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

A siphon tube is NOT present Charge with the cylinder upside

Charge with the cylinder upright.

down.

CAUTION

When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is not closed immediately, remaining pressure might charge additional refrigerant.

Possible consequence: Incorrect refrigerant amount.

1.2.4 Brine

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

WARNING

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

WARNING

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

WARNING

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

WARNING

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

1.2.5 Water

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

NOTICE

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

1.2.6 Electrical

DANGER: RISK OF ELECTROCUTION

▪ Turn OFF all power supply before removing the

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

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

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

▪ Do NOT touch electrical components with wet hands.

▪ Do NOT leave the unit unattended when the service

cover is removed.

▪ Open refrigerant cylinders slowly.

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

prevent normal operation.

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

WARNING

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

Installer reference guide

2 About the documentation

WARNING

▪ ONLY use copper wires.

▪ Make sure the field wiring complies with the applicable

legislation.

▪ All field wiring must be performed in accordance with

the wiring diagram supplied with the product.

▪ NEVER squeeze bundled cables and make sure they

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

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

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

▪ Make sure to use a dedicated power circuit. NEVER

use a power supply shared by another appliance.

▪ Make sure to install the required fuses or circuit

breakers.

▪ Make sure to install an earth leakage protector. Failure

to do so may cause electric shock or fire.

▪ When installing the earth leakage protector, make sure

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

NOTICE

Precautions when laying power wiring:

▪ Do not connect wiring of different thicknesses to the

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

▪ When connecting wiring which is the same thickness,

do as shown in the figure below.

▪ For wiring, use the designated power wire and connect

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

▪ Use an appropriate screwdriver for tightening the

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

▪ Over-tightening the terminal screws may break them.

WARNING

▪ After finishing the electrical work, confirm that each

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

▪ Make sure all covers are closed before starting up the

unit.

NOTICE

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

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

2 About the documentation

2.1 About this document

Target audience

Authorised installers

INFORMATION

This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.

Documentation set

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

▪ General safety precautions:

▪ Safety instructions that you must read before installing

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

▪ Outdoor unit installation manual:

▪ Installation instructions

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

▪ Control box installation manual:

▪ Installation instructions

▪ Format: Paper (in the box of the control box)

▪ Option box installation manual:

▪ Installation instructions

▪ Format: Paper (in the box of the option box)

▪ Backup heater installation manual:

▪ Installation instructions

▪ Format: Paper (in the box of the backup heater)

▪ Installer reference guide:

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

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

and-manuals/product-information/

▪ Addendum book for optional equipment:

▪ Additional info about how to install optional equipment

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

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

▪ Instruction sheet for valve kit EKMBHBP1:

▪ Instructions for the integration of valve kit EKMBHBP1

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

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

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

Technical engineering data

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

Daikin website (publicly accessible).

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

extranet (authentication required).

Installer reference guide

Packaged air-cooled water chillers and packaged air to water heat

EWAQ+EWYQ004+005BAVP

4P492900-1 – 2017.06

pumps

3 About the box

2.2 Installer reference guide at a glance

Chapter Description

General safety precautions

About the documentation What documentation exists for the

About the box How to unpack the units and remove

About the units and options

Application guidelines Various installation setups of the system

Preparation What to do and know before going

Installation What to do and know to install the

Configuration What to do and know to configure the

Commissioning What to do and know to commission the

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

Maintenance and service How to maintain and service the units

Troubleshooting What to do in case of problems

Disposal How to dispose of the system

Technical data Specifications of the system

Glossary Definition of terms

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

Safety instructions that you must read before installing

installer

their accessories

▪ How to identify the units

▪ Possible combinations of units and

options

on‑site

system

system after it is installed

system after it is configured

kept for future reference

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

3.2 Outdoor unit

3.2.1 To unpack the outdoor unit

3 About the box

3.1 Overview: About the box

This chapter describes what you have to do after the boxes with the outdoor unit, control box, option box, and/or backup heater are delivered on-site.

It contains information about:

▪ Unpacking and handling the units

▪ Removing the accessories from the units

Keep the following in mind:

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

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

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

position to prevent damage during transport.

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

3.2.2 To remove the accessories from the outdoor unit

1 Open the outdoor unit.

Installer reference guide

3 About the box

5×

3×

ENERG

IJAY IAIE

ENERG

IJAY IAIE

1×

1× 1× 1× 1×

a b c d

2× 1×2×

1×

e h i

1×

2× 2× 2×

a b c

2 Remove the accessories.

3.3.1 To unpack the control box

3.3.2 To remove the accessories from the control box

1 Open the control box.

a General safety precautions b Addendum book for optional equipment c Outdoor unit installation manual d Operation manual e Instruction sheet for valve kit EKMBHBP1

f Sealing ring for shut-off valve g Shut-off valve h Unit mounting plate

i User interface j Energy label

INFORMATION

The instruction sheet for valve kit EKMBHBP1 only applies in case valve kit EKMBHBP1 is part of the system. If so, do NOT take into account the instruction sheet delivered with the valve kit; it is overruled by the one delivered with the outdoor unit.

3.3 Control box

NOTICE

Control box EKCB07CAV3 is an option and cannot be used standalone.

2 Remove the accessories.

a M4 bolts for user interface b M4 nuts for user interface c Wires for domestic hot water booster heater relay

(redundant accessory)

3.4 Option box

NOTICE

▪ Option box EK2CB07CAV3 is an option and cannot be

used standalone.

▪ To be able to use the option box, it is required that

optional control box EKCB07CAV3 is part of the system.

Installer reference guide

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4 About the units and options

2×

3.4.1 To unpack the option box

3.4.2 To remove the accessories from the option box

1 Open the option box.

3.5.1 To unpack the backup heater

3.5.2 To remove the accessories from the backup heater

1 Remove the wall bracket from the box.

2 Remove the accessories.

a Connectors for interconnection cable between the option

box and control box EKCB07CAV3.

4 About the units and options

3.5 Backup heater

4.1 Overview: About the units and

NOTICE

▪ The backup heater is an option and cannot be used

standalone.

▪ To be able to use the backup heater, it is required that

optional control box EKCB07CAV3 is part of the system.

This chapter contains information about:

▪ Identifying the outdoor unit

▪ Identifying the control box (if applicable)

▪ Identifying the option box (if applicable)

▪ Identifying the backup heater (if applicable)

▪ Combining the outdoor unit with options

▪ Combining the control box with options

▪ Combining the option box with options

options

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Installer reference guide

4 About the units and options

FHL1

FHL2

FHL3

a b c ed

f g

4.2 Identification

NOTICE

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

4.2.1 Identification label: Outdoor unit

Location

Model identification

Example: EWA/YQ005BAVP-H-

Code Explanation

EW European water chiller

Q Refrigerant R410A

005 Capacity class

BA Model series

V Nominal voltage

P Pump included

-H- Heater tape included

Cooling only

Reversible (heating+cooling)

(a)

(a) Outdoor units that have -H- in their model name feature

heater tape around their internal water piping, this to prevent the piping from freezing at negative ambient temperatures.

Model identification

Example: EK2CB07 CA V3

Code Description

EK European kit

2 Optional

CB Control box

07 Capacity class

CA Model series

V3 Power supply

4.2.4 Identification label: Backup heater

Location

Model identification

Example: EK M BUH CA 3 V3

Code Explanation

EK European kit

M Designed for low temperature monobloc and air-

cooled water chiller

BUH Backup heater

CA Model series

3 Capacity of heater kit (kW)

V3 Power supply

4.2.2 Identification label: Control box

Location

Model identification

Example: EKCB07 CA V3

Code Description

EK European kit

CB Control box

07 Capacity class

CA Model series

V3 Power supply

4.2.3 Identification label: Option box

Location

4.3 Combining units and options

4.3.1 Possible combinations of outdoor unit and options

a Outdoor unit (EWAQ004+005BAVP or

EWYQ004+005BAVP)

b Refrigerant part of the outdoor unit c Hydro part of the outdoor unit d Valve kit EKMBHBP1 e Backup heater kit (EKMBUHCA3V3 or EKMBUHCA9W1)

f Control box EKCB07CAV3 g Option box EK2CB07CAV3 h Space heating circuit

Installer reference guide

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Option System components required for that option

Outdoor unit

EWAQ004+005BAVP or

EWYQ004+005BAVP

Optional equipment

User interface (EKRUMCL1)(mandatory)

Remote outdoor sensor (EKRSCA1)

PC configurator (EKPCCAB)

Room thermostat (EKRTWA, EKRTR1)

Remote sensor for wireless thermostat (EKRTETS)

Backup heater kit (EKMBUHCA3V3, EKMBUHCA9W1)

Remote indoor sensor (KRCS01-1)

Field-supplied components

Space heating/cooling operation control (or shut‑off valve)

Preferential kWh rate power supply (voltage‑free contact)

Electric meter O O O

Power consumption digital inputs

Alarm output O O O

Space cooling/heating ON/ OFF output

Changeover to external heat source

(a) Only for EWYQ004+005BAVP.

INFORMATION

This system does NOT support domestic hot water and heat pump convector functionalities.

O O

O O O

O O

O O O

4.3.2 Possible options for the outdoor unit

User interface (EKRUMCL1)

An additional user interface is available as an option. The additional user interface can be connected to have both close control the control box, and room thermostat functionality in the principal space to be heated.

EKRUMCL1 is standard available with a language pack that contains English, French, Italian, and Spanish. Other languages can be uploaded by PC software.

For installation instructions, see "7.8.6 To connect the user

interface"on page39.

INFORMATION

▪ If control box EKCB07CAV3 is NOT part of the system,

connect the user interface directly to the outdoor unit.

▪ If control box EKCB07CAV3 is part of the system, you

can also connect the user interface to the control box.

Control box

EKCB07CAV3

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 and the addendum book for optional equipment.

INFORMATION

You can only connect either the remote indoor sensor or

the remote outdoor sensor.

4.3.3 Possible options for the control box

User interface (EKRUMCL1)

EKRUMCL1 is standard available with a language pack that contains English, French, Italian, and Spanish. Other languages can be uploaded by PC software.

For installation instructions, see "7.8.6 To connect the user

interface"on page39.

4 About the units and options

Option box

EK2CB07CAV3

Valve kit EKMBHBP1

(a)

Remote outdoor sensor (EKRSCA1)

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

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

Installer reference guide

5 Application guidelines

INFORMATION

▪ If control box EKCB07CAV3 is NOT part of the system,

connect the user interface directly to the outdoor unit.

▪ If control box EKCB07CAV3 is part of the system, you

can also connect the user interface to the control box.

Room thermostat (EKRTWA, EKRTR1)

You can connect an optional room thermostat to control box EKCB07CAV3. 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.

PC configurator (EKPCCAB)

The PC cable makes a connection between the switch box of the outdoor unit (or that of control box EKCB07CAV3) and a PC. It gives the possibility to upload different language files to the user interface, and parameters to the outdoor unit. For the available language files, contact your local dealer.

The software and corresponding operating instructions are available on http://www.daikineurope.com/support-and-manuals/software-

downloads/.

For installation instructions, see the installation manual of the PC cable, the "8Configuration"on page46 chapter, and the addendum book for optional equipment.

4.3.4 Possible options for the option box

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.

The remote indoor sensor is connected to option box EK2CB07CAV3. For installation instructions, see the installation manual of the remote indoor sensor and the addendum book for optional equipment.

INFORMATION

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

user interface is configured with room thermostat functionality.

▪ You can only connect either the remote indoor sensor

or the remote outdoor sensor.

NOTICE

▪ The illustrations in the application guidelines are meant

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

▪ For more information about the configuration settings to

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

page46.

This chapter contains application guidelines for:

▪ Setting up the space heating/cooling system

▪ Setting up an auxiliary heat source for space heating

▪ Setting up the energy metering

▪ Setting up the power consumption

▪ Setting up an external temperature sensor

5.2 Setting up the space heating/ cooling system

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

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

▪ How many rooms are heated or cooled by the Daikin heatpump

system?

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

design leaving water temperature?

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

NOTICE

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

INFORMATION

In case an external room thermostat is used and room frost protection needs to be guaranteed in all conditions, then you have to set auto emergency [A.6.C] to 1.

5.2.1 Single room

Underfloor heating or radiators – Wired room thermostat

Setup

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.

Installer reference guide

A Main leaving water temperature zone B One single room

a User interface used as room thermostat b Control box

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5 Application guidelines

c Backup heater (option)

▪ The underfloor heating or radiators are directly connected to the

outdoor unit – or to the backup heater, if there is one.

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

connected to control box EKCB07CAV3. Possible installations:

▪ Control box EKCB07CAV3 is installed in the room and the user

interface is used as room thermostat.

▪ Control box EKCB07CAV3 is installed indoors, close to the

outdoor unit + user interface installed in the room and used as room thermostat.

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

Benefits

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

thermostat.

▪ Highest comfort and efficiency. The smart room thermostat

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

▪ Stable room temperature matching the desired temperature

(higher comfort)

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

efficiency)

▪ Lowest possible leaving water temperature (higher efficiency)

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

user interface:

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

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

the preset values and schedules, use the holiday mode…

▪ The room temperature is controlled by the wireless external room

thermostat (optional equipment EKRTR1).

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

External room thermostat for the main zone:

▪ #: [A.2.2.E.5]

1 (Thermo ON/OFF): When the used external room thermostat can only send a thermo ON/OFF condition.

▪ Code: [C-05]

Benefits

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

wireless version.

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

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

▪ 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.

Fan coil units

Setup

Underfloor heating or radiators – Wireless room thermostat

Setup

A Main leaving water temperature zone B One single room

a User interface

b Control box

c Backup heater (option)

d Receiver for wireless external room thermostat

e Wireless external room thermostat

▪ The underfloor heating or radiators are directly connected to the

outdoor unit – or to the backup heater, if there is one.

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

A Main leaving water temperature zone B One single room

a User interface

b Control box

c Backup heater (option)

d Remote controller of the fancoil units

▪ Space cooling or heating is provided by the fancoil units.

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

the fancoil units.

▪ A space heating/cooling demand signal is sent to one digital input

on control box EKCB07CAV3 (X2M/1 and X2M/2) (if this signal is available on the fancoil units and compatible with the control box).

▪ The space operation mode can be sent to the fancoil units by one

digital output on control box EKCB07CAV3 (X8M/6 and X8M/7) (if this signal is compatible with the fancoil units).

▪ The main user interface (connected to control box EKCB07CAV3)

decides the space operation mode. Mind that the space operation mode of the additional user interfaces (used as room thermostat) must be set to match that of the main user interface.

INFORMATION

When using multiple fan coil units, make sure each one receives the infrared signal from the remote controller of the fancoil units.

Installer reference guide

5 Application guidelines

B C

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

External room thermostat for the main zone:

▪ #: [A.2.2.E.5]

1 (Thermo ON/OFF): When the used external room thermostat or fancoil unit can only send a thermo ON/OFF condition.

▪ Code: [C-05]

Benefits

▪ Cooling. The fan coil unit offers, besides heating capacity, also

excellent cooling capacity.

▪ Efficiency. Optimal energy efficiency because of the interlink

function.

▪ Stylish.

Combination: Underfloor heating + Fan coil units

▪ Space heating is provided by:

▪ The underfloor heating

▪ The fancoil units

▪ Space cooling is provided by the fan coil units only. The

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

Setup

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

External room thermostat for the main zone:

▪ #: [A.2.2.E.5]

1 (Thermo ON/OFF): When the used external room thermostat or fancoil unit can only send a thermo ON/OFF condition.

▪ Code: [C-05]

Benefits

▪ Cooling. Fan coil units provide, besides heating capacity, also

excellent cooling capacity.

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

▪ The excellent heating comfort of the underfloor heating

▪ The excellent cooling comfort of the fancoil units

5.2.2 Multiple rooms – OneLWT zone

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

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

Underfloor heating or radiators – Thermostatic valves

If you are heating up rooms with under floor heating or radiators, a very common way is to control the temperature of the main room by using a thermostat (this can either be the user interface connected to control box EKCB07CAV3, or an external room thermostat), while the other rooms are controlled by so-called thermostatic valves (field supply), which open or close depending on the room temperature.

Setup

A Main leaving water temperature zone B One single room

a User interface b Control box c Backup heater (option) d Remote controller of the fancoil units

▪ The fancoil units are directly connected to the outdoor unit – or to

the backup heater, if there is one.

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

heating to prevent condensation on the floor during cooling operation.

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

the fancoil units.

▪ A space heating/cooling demand signal is sent to one digital input

on control box EKCB07CAV3 (X2M/1 and X2M/2) (if this signal is available on the fan coil unit and compatible with the control box).

▪ The space operation mode can be sent by one digital output

(X8M/6 and X8M/7) on control box EKCB07CAV3 to:

▪ The fan coil units (if this signal is compatible with the fan coil

units).

▪ The shut-off valve

Installer reference guide

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

a User interface b Control box c Backup heater (option)

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

the outdoor unit – or to the backup heater, if there is one.

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

interface used as thermostat.

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

each of the other rooms.

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5 Application guidelines

B C

M1 M2

d d

INFORMATION

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

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

Benefits

▪ Cost effective.

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

valves.

Underfloor heating or radiators – Multiple external room thermostats

Setup

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

a User interface

b Control box

c Backup heater (option)

d Bypass valve

e External room thermostat

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

leaving water supply when there is no heating or cooling demand.

▪ A bypass valve must be installed to make water recirculation

possible when all shut-off valves are closed. To guarantee reliable operation, provide a minimum water flow as described in table "To check the water volume and flow rate" in "6.3 Preparing water

piping"on page23.

▪ The main user interface (connected to control box EKCB07CAV3)

decides the space operation mode. Mind that the space operation mode of the additional user interfaces (used as room thermostat) must be set to match that of the main user interface.

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

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

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

▪ Code: [C-07]

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

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

Setting Value

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

Benefits

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

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

schedules, for each room via the room thermostats.

Fan coil units - Multiple rooms

Setup

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

a User interface

b Control box

c Backup heater (option)

d Remote controller of the fancoil units

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

the fancoil units.

▪ The main user interface (connected to control box EKCB07CAV3)

decides the space operation mode.

▪ The heating demand signals of each fan coil unit can be

connected in parallel to the digital input on control box EKCB07CAV3 (X2M/1 and X2M/2) (if this signal is available on the fan coil units and compatible with the control box). The outdoor unit will only supply leaving water temperature when there is an actual demand.

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

Benefits

Compared with fancoil units for one room:

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

schedules, for each room via the remote controller of the fancoil units.

Installer reference guide

5 Application guidelines

B C

ba c

f h

FHL1

FHL2

FHL3

Combination: Underfloor heating + Fan coil units Multiple rooms

Setup

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

a User interface b Control box c Backup heater (option) d External room thermostat e Remote controller of the fancoil units

▪ For each room with fan coil units: The fancoil units are directly

connected to the outdoor unit – or to the backup heater, if there is one.

▪ For each room with underfloor heating: Two shut-off valves (field

supply) are installed before the underfloor heating:

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

no heating demand

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

cooling operation of the rooms with fancoil units.

▪ For each room with fancoil units: The desired room temperature

is set via the remote controller of the fancoil units.

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

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

▪ The main user interface (connected to control box EKCB07CAV3)

decides the space operation mode. Mind that the operation mode of each external room thermostat and fan coil unit remote controller must be set to match that of the main user interface.

Configuration

Setting Value

Unit temperature control:

▪ #: [A.2.1.7]

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

▪ Code: [C-07]

Number of water temperature

0 (1 LWT zone): Main

zones:

▪ #: [A.2.1.8]

▪ Code: [7-02]

5.3 Setting up an auxiliary heat source for space heating

▪ Space heating can be done by:

▪ The outdoor unit

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

Installer reference guide

▪ When the room thermostat requests heating, the outdoor 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 outdoor unit is turned OFF.

▪ Bivalent operation is only possible for space heating.

INFORMATION

For bivalent operation to be possible, the system requires option box EK2CB07CAV3.

INFORMATION

▪ During heating operation of the heat pump, the

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

▪ During heating operation of the auxiliary boiler, the

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

Setup

▪ Integrate the boiler as follows:

a Outdoor unit b Heat exchanger c Pump d Shut‑off valve e Backup heater (option)

f Control box g User interface h Option box

i Non‑return valve (field supply) j Shut‑off valve (field supply)

k Collector (field supply)

l Auxiliary boiler (field supply)

m Aquastat valve (field supply)

FHL1...3 Underfloor heating

NOTICE

▪ Make sure the auxiliary boiler and its integration in the

system complies with applicable legislation.

▪ Daikin is NOT responsible for incorrect or unsafe

situations in the auxiliary boiler system.

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5 Application guidelines

Com

K2AK1A

X2M

K2AK1A

Outdoor/Auto/Boiler

1 4 X Y

Control box

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

55°C. To do so:

▪ Set the desired water temperature via the auxiliary boiler

controller to maximum 55°C.

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

heatpump.

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

55°C.

▪ Install non-return valves.

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

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

▪ Install control box EKCB07CAV3 and option box EK2CB07CAV3.

▪ Connect X8M/3 and X8M/4 (changeover to external heat source)

on option box EK2CB07CAV3 to the auxiliary boiler thermostat.

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

cooling system"on page12.

Configuration

Via the user interface (quick wizard):

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

▪ Set the bivalent temperature and hysteresis.

NOTICE

▪ Make sure the bivalent hysteresis has enough

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

▪ Because the outdoor temperature is measured by the

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

▪ Frequent changeover may cause corrosion of the

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

Changeover to external heat source decided by an auxiliary contact

▪ Only possible in external room thermostat control AND one

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

heating/cooling system"on page12).

▪ The auxiliary contact can be:

▪ An outdoor temperature thermostat

▪ An electricity tariff contact

▪ A manually operated contact

▪ …

▪ Setup: Connect the following field wiring:

NOTICE

▪ Make sure the auxiliary contact has enough differential

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

▪ If the auxiliary contact is an outdoor temperature

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

▪ Frequent changeover may cause corrosion of the

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

5.4 Setting up the energy metering

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

▪ Produced heat

▪ Consumed energy

▪ You can read out the energy data:

▪ For space cooling

▪ For space heating

▪ You can read out the energy data:

▪ Per month

▪ Per year

INFORMATION

The calculated produced heat and consumed energy are

an estimation, the accuracy cannot be guaranteed.

5.4.1 Produced heat

INFORMATION

The sensors used to calculate the produced heat are

calibrated automatically.

INFORMATION

If glycol is present in the system ([E‑0D]=1]), then the

produced heat will NOT be calculated, nor will it be

displayed on the user interface.

▪ Applicable for all models.

▪ The produced heat is calculated internally based on:

▪ The leaving and entering water temperature

▪ The flow rate

▪ Setup and configuration: No additional equipment needed.

5.4.2 Consumed energy

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

▪ Calculating

▪ Measuring

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

BTIBoiler thermostat input

A Auxiliary contact (normal closed)

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

Outdoor Outdoor unit

Auto Automatic

Boiler Boiler

Control box Control box

INFORMATION

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.

Installer reference guide

5 Application guidelines

c c

A B C D

f g

A B D

c c d



Calculating the consumed energy

▪ The consumed energy is calculated internally based on:

▪ The actual power input of the outdoor unit

▪ The set capacity of the optional backup heater

▪ The voltage

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

the capacity (resistance measurement) and set the capacity via the user interface for the optional backup heater (step 1 and step2).

Measuring the consumed energy

▪ Preferred method because of higher accuracy.

▪ Setup and configuration:

▪ Requires option box EK2CB07CAV3.

▪ Requires external power meters.

▪ When using electrical power meters, set the number of pulses/

kWh for each power meter via the user interface.

INFORMATION

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

5.4.3 Normal kWh rate power supply

General rule

One power meter that covers the entire system is sufficient.

Setup

▪ Install control box EKCB07CAV3 and option box EK2CB07CAV3.

▪ Connect the power meter to X2M/7 and X2M/8 of option box

EK2CB07CAV3.

Power meter type

In case of… Use a… power meter

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 *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 Control box

C Option box

D Backup heater kit

a Electrical cabinet (L1/N)

b Power meter (L1/N)

c Fuse (L1/N)

d Outdoor unit (L1/N)

e Control box (L1/N)

f Option box (L1/N)

g Backup heater (L1/N)

A Outdoor unit

B Control box

C Option box

D Backup heater kit

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

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

c Fuse (L1/N)

d Fuse (L1/L2/L3/N)

e Outdoor unit (L1/N)

f Control box (L1/N)

g Option box (L1/N)

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

Exception

▪ You can use a second power meter if:

▪ The power range of one meter is insufficient.

▪ The electrical meter cannot easily be installed in the electrical

cabinet.

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

uncommon), because of technical limitations of power meters.

▪ Connection and setup:

▪ Connect the second power meter to X2M/9 and X2M/10 of

option box EK2CB07CAV3.

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

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

▪ See "5.4.4 Preferential kWh rate power supply" on page18 for

an example with two power meters.

Installer reference guide

5.4.4 Preferential kWh rate power supply

General rule

▪ Power meter1: Measures the refrigerant part of the outdoor unit.

▪ Power meter 2: Measures the rest (i.e. the hydro part of the

outdoor unit, control box EKCB07CAV3, option box EK2CB07CAV3, and the backup heater kit).

Setup

▪ Connect power meter 1 to X2M/7 and X2M/8 of option box

EK2CB07CAV3.

▪ Connect power meter 2 to X2M/9 and X2M/10 of option box

EK2CB07CAV3.

Packaged air-cooled water chillers and packaged air to water heat

EWAQ+EWYQ004+005BAVP

pumps

4P492900-1 – 2017.06

Power meter types

e fe

A D



BiC

X2M

A B C D

▪ Power meter1: Single-phase power meter.

▪ Power meter2:

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

single-phase power meter.

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

Example

Three-phase backup heater:

A Outdoor unit

B Control box

C Option box

D Backup heater kit

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

supply

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

supply

c Power meter (L1/N)

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

e Fuse (L1/N)

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

i Option box (L1/N)

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

5.5 Setting up the power consumption control

▪ The power consumption control:

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

(sum of the outdoor unit, control box EKCB07CAV3, option box EK2CB07CAV3, and the backup heater kit).

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

be achieved via the user interface.

▪ The power limitation level can be expressed as:

▪ Maximum running current (inA)

▪ Maximum power input (inkW)

▪ The power limitation level can be activated:

▪ Permanently

▪ By digital inputs

5 Application guidelines

PiPower input

t Time

DI Digital input (power limitation level)

a Power limitation active

b Actual power input

Setup and configuration

▪ No additional equipment needed.

▪ Set the power consumption control settings in [A.6.3.1] via the

user interface (for the description of all settings, see

"8Configuration"on page46):

▪ Select full time limitation mode

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

▪ Set the desired power limitation level

NOTICE

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

▪ 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.

▪ Set a minimum power consumption of ±3 kW to

guarantee space heating by allowing backup heater step1.

5.5.2 Power limitation activated by digital inputs

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

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

▪ Current (in A)

▪ Power input (in kW)

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

5.5.1 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.

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

A Outdoor unit B Control box C Option box D Backup heater kit

F Energy management system

a Power limitation activation (4 digital inputs)

b Backup heater

Installer reference guide

6 Preparation

DI4

DI3

DI1

A B

PiPower input

t Time

DI Digital inputs (power limitation levels)

a Power limitation active b Actual power input

Setup

▪ Install control box EKCB07CAV3 and option box EK2CB07CAV3.

▪ Maximum four digital inputs are used to activate the

corresponding power limitation level:

▪ DI1 = weakest limitation (highest energy consumption)

▪ DI4 = strongest limitation (lowest energy consumption)

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

connect them, refer to the wiring diagram.

Configuration

Set the power consumption control settings in [A.6.3.1] via the user interface (for the description of all settings, see "8Configuration"on

page46):

▪ Select activation by digital inputs.

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

▪ Set the desired power limitation level corresponding to each digital

input.

INFORMATION

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

5.5.3 Power limitation process

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

1 Limits the backup heater.

2 Turns OFF the backup heater.

3 Limits the outdoor unit.

4 Turns OFF the outdoor unit.

Example

If the configuration is as follows: Power limitation level does NOT allow for backup heater operation (step1 and step2).

Then power consumption is limited as follows:

5.6 Setting up an external temperature sensor

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

Indoor ambient temperature

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

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

▪ Where the average temperature in the room can be detected

▪ That is NOT exposed to direct sunlight

▪ That is NOT near a heat source

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

for example, door opening/closing

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

indoor sensor (option KRCS01-1).

▪ Setup:

▪ Requires control box EKCB07CAV3 and option box

EK2CB07CAV3.

▪ For installation instructions, see the installation manual of the

remote indoor sensor and the addendum book for optional equipment.

Configuration: Select room sensor [A.2.2.F.5].

Outdoor ambient temperature

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

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

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

the most heat emitters are located

▪ That is NOT exposed to direct sunlight

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

outdoor sensor (option EKRSCA1).

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

the remote outdoor sensor and the addendum book for optional equipment.

▪ Configuration: Select outdoor sensor [A.2.2.B].

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

(see "8 Configuration" on page 46), the outdoor unit is turned down to reduce standby energy losses. As a result, the outdoor ambient temperature is NOT read out.

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

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

INFORMATION

The external outdoor ambient sensor data (either averaged or instantaneous) is used in the weather-dependent control curves 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

PhProduced heat CeConsumed energy

A Outdoor unit B Backup heater

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

6 Preparation

6.1 Overview: Preparation

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

It contains information about:

EWAQ+EWYQ004+005BAVP

Packaged air-cooled water chillers and packaged air to water heat

pumps

4P492900-1 – 2017.06

▪ Preparing the installation site

≤1200

>250/400

>250

>350

(mm)(mm)

▪ Preparing the water piping

▪ Preparing the electrical wiring

6.2 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.

6.2.1 Installation site requirements of the outdoor unit

6 Preparation

INFORMATION

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

Mind the following spacing guidelines:

a Air outlet

b Air inlet

INFORMATION

If shut-off valves are installed on the unit, provide a minimum space of 400mm at the air inlet side. If shut‑off valves are NOT installed on the unit, provide a minimum space of 250mm.

NOTICE

▪ Do NOT stack the units on each other.

▪ Do NOT hang the unit on a ceiling.

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

▪ deterioration of the operational capacity;

▪ frequent frost acceleration in heating operation;

▪ disruption of operation due to decrease of low pressure or

increase of high pressure;

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

may start rotating very fast, until it breaks).

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

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

a Baffle plate

b Prevailing wind direction

c Air outlet

Do NOT install the unit in the following places:

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

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

INFORMATION

The sound pressure level is less than 70dBA.

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

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

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

▪ Where the voltage fluctuates a lot

▪ In vehicles or vessels

▪ Where acidic or alkaline vapour is present

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

Install the outdoor unit away from direct sea winds.

Example: Behind the building.

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

Installer reference guide

6 Preparation

100

600

(mm)

100

600

(mm)

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

▪ Height of windbreaker≥1.5×height of outdoor unit

▪ Mind the service space requirements when installing the

windbreaker.

a Sea wind b Building c Outdoor unit d Windbreaker

The outdoor unit is designed for outdoor installation only, and for ambient temperatures ranging 10~43°C in cooling mode and – 20~25°C in heating mode.

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

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

▪ Mind the measurement guidelines:

Maximum distance between control box and

20m

outdoor unit

Maximum distance between control box and backup

10m

heater kit

▪ Mind the following spacing installation guidelines:

▪ The control box is designed to be wall-mounted in indoor locations

only. Make sure the installation surface is a flat and vertical noncombustible wall.

▪ The control box is designed to operate in ambient temperatures

ranging from 5~35°C.

Do NOT install the control box in the following places:

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

operation noise will cause no trouble.

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

bathroom.

▪ In places where frost is possible.

a Snow cover or shed b Pedestal c Prevailing wind direction d Air outlet

▪ In any case, provide at least 300mm of free space below the unit.

Additionally, make sure the unit is positioned at least 100 mm above the maximum expected level of snow. See "7.3 Mounting

the outdoor unit"on page29 for more details.

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

6.2.3 Installation site requirements of the control box

Installer reference guide

INFORMATION

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

6.2.4 Installation site requirements of the option box

INFORMATION

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

▪ Mind the measurement guidelines:

Maximum distance between the option box and control box EKCB07CAV3

▪ Mind the following spacing installation guidelines:

▪ The option box is designed to be wall-mounted in indoor locations

only. Make sure the installation surface is a flat and vertical noncombustible wall.

▪ The option box is designed to operate in ambient temperatures

ranging from 5~35°C.

Do NOT install the option box in the following places:

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

operation noise will cause no trouble.

EWAQ+EWYQ004+005BAVP

Packaged air-cooled water chillers and packaged air to water heat

4P492900-1 – 2017.06

3m

pumps

6 Preparation

>50 >50

>200

>500

>350

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

bathroom.

▪ In places where frost is possible.

6.2.5 Installation site requirements of the backup heater

INFORMATION

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

▪ Mind the measurement guidelines:

Maximum distance between the backup heater and the outdoor unit

▪ Mind the following spacing installation guidelines:

10m

▪ Connecting piping – Legislation. Make all piping connections in

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

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

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

▪ Connecting piping – Tools. Only use appropriate tooling to

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

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

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

▪ Only use clean pipes

▪ Hold the pipe end downwards when removing burrs.

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

dust and/or particles entering the pipe.

▪ Use a decent thread sealant to seal connections.

NOTICE

If glycol is present in the system, make sure the thread sealant used is resistant to glycol.

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

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

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

the required water flow and the available external static pressure of the pump. See "14 Technical data"on page77 for the external static pressure curves of the outdoor unit.

▪ Water flow. It is required to guarantee a minimum flow of 12l/min.

When the flow is lower, the system will stop operation and display error 7H.

INFORMATION

If the backup heater is installed in a reversible system (heating+cooling) and valve kit EKMBHBP1 is part of the system, it may be required to provide more space under the backup heater than indicated above. For more information, refer to "7.7.5 About the valve kit" on

page34.

▪ The backup heater is designed to be wall-mounted in indoor

locations only. Make sure the installation surface is a flat and vertical non-combustible wall.

▪ The backup heater is designed to operate in ambient

temperatures ranging from 5~30°C.

Do NOT install the backup heater in the following places:

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

operation noise will cause no trouble.

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

bathroom.

▪ In places where frost is possible.

6.3 Preparing water piping

6.3.1 Water circuit requirements

INFORMATION

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

Minimum required flow rate

04+05 models 12l/min

▪ Field supply components – Freeze protection. If negative

ambient temperatures are expected, make sure the outdoor field piping is sufficiently protected against freezing. Depending on the outdoor unit model, add glycol to the water circuit, or add sufficient insulation and/or heater tape to the outdoor field piping. For details, see "7.7.6To protect the water circuit against freezing"on

page35.

▪ Field supply components – Water and glycol. Only use

materials that are compatible with the water (and, if applicable, glycol) used in the system, and with the materials used in the outdoor unit.

▪ Field supply components – Water pressure and temperature.

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

▪ Water pressure. The maximum water pressure is 3 bar. Provide

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

▪ Water temperature. All installed piping and piping accessories

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

INFORMATION

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

NOTICE

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

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

Installer reference guide

6 Preparation

FCU1

FCU2

FCU3

FHL1

FHL2

FHL3

65°C

a eb c

FHL1

FHL2

FHL3

T1 T3T2

M2 M3

f g

a eb c

a Outdoor unit b Heat exchanger c Pump d Shut‑off valve e Backup heater

f Motorised 2‑way valve (field supply)

g Collector

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

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

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

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

▪ Drainage – Pressure relief valve. Provide a proper drain for the

pressure relief valve to avoid water coming into contact with electrical parts.

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

must also be easily accessible for servicing. The outdoor unit has a manual air purge valve. The backup heater (option) has an automatic air purge valve. Check that automatic air purge valves are NOT tightened too much, so that the automatic release of air from the water circuit is possible.

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

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

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

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

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

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

▪ Filter. It is strongly recommended to install an additional filter on

the heating water circuit. Especially to remove metallic particles from foul heating piping, it is recommended 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.

▪ Thermostatic mixing valves. In accordance with the applicable

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

▪ Hygienic measures. The installation must be in compliance with

the applicable legislation and may require additional hygienic installation measures.

6.3.2 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)

Installer reference guide

6.3.3 To check the water volume and flow rate

The outdoor unit has an expansion vessel of 3litre with a factory-set pre-pressure of 1bar.

To make sure that the unit operates properly:

▪ You must check the minimum and maximum water volume.

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

vessel.

Minimum water volume

If Then

The system contains a backup heater

The system does NOT contain a backup heater

(a) The internal water volume of the outdoor unit NOT

included.

INFORMATION

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

NOTICE

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

a Outdoor unit b Heat exchanger c Pump d Shut‑off valve e Backup heater kit (optional)

f Collector (field supply)

g 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)

Maximum water volume

NOTICE

The maximum water volume depends on whether glycol is added to the water circuit. For more information on the addition of glycol, refer to "7.7.6To protect the water circuit

against freezing"on page35.

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

Packaged air-cooled water chillers and packaged air to water heat

The minimum water volume is

(a)

10l

The minimum water volume is

(a)

20l

EWAQ+EWYQ004+005BAVP

4P492900-1 – 2017.06

pumps

6 Preparation

2.4

2.1

2.0

1.8

1.7

1.5

1.2 1

0.9

0.6

0.3

50 65 80

7066

105

NOTICE

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

Minimum required flow rate

04+05 models 12l/min

See the recommended procedure as described in "9.4 Checklist

A Pre-pressure (bar) B Maximum water volume (l)

Water Water + glycol

Example: Maximum water volume and expansion vessel prepressure

Installation

height

difference

(a)

≤70/43l

≤7m No pre-pressure

adjustment is required.

Water volume

(b)

>70/43l

Do the following:

▪ Decrease the pre-

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

▪ Check if the water

volume does NOT exceed the maximum allowed water volume.

>7m Do the following:

▪ Increase the pre-

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

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

increase by 0.1bar for each metre above 7m.

▪ Check if the water

volume does NOT exceed the maximum allowed water volume.

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

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

(b) The maximum water volume is 70l in case the circuit is

only filled with water, and 43l in case the circuit is filled with water and glycol.

Minimum flow rate

Check that the minimum flow rate (required during defrost/backup heater operation) in the installation is guaranteed in all conditions.

NOTICE

If glycol was added to the water circuit, and the temperature of the water circuit is low, the flow rate will NOT be displayed on the user interface. In this case, the minimum flow rate can be checked by way of the pump test (check that the user interface does NOT display error 7H).

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

during commissioning"on page66.

6.3.4 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:

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

▪ Inappropriate setting of the expansion vessel pre-pressure will

lead to malfunction of the system.

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

a Schrader valve

6.3.5 To check the water volume: Examples

Example 1

The outdoor unit is installed 0.8 m below the highest point in the water circuit. The total water volume in the water circuit is 50l.

No actions or adjustments are required.

Example 2

The outdoor unit is installed at the highest point in the water circuit. The total water volume in the water circuit is 140l. The concentration of propylene glycol is 35%.

Actions:

▪ Because the total water volume (140 l) is more than the default

water volume (43l), the pre-pressure must be decreased.

▪ The required pre-pressure is:

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

▪ The corresponding maximum water volume at 0.3bar is 66l. (See

the graph in the chapter above).

Installer reference guide

6 Preparation

0 1

5 1

f e cd

5 1

d c

0 5

a b

f e c d

15 4

▪ Because 140l is more than 66l, the expansion vessel is NOT

appropriate for the installation. Therefore the system requires an external expansion vessel.

6.4 Preparing electrical wiring

6.4.1 About preparing electrical wiring

INFORMATION

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

WARNING

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

WARNING

ALWAYS use multicore cable for power supply cables.

6.4.2 About preferential kWh rate power supply

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

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

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

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

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

▪ demand that the equipment only consumes a limited amount of

electricity during certain periods of time.

Installer reference guide

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

equipment might break down.

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

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

▪ Install the required fuses or circuit breakers.

▪ Secure the electrical wiring with cable ties so that the

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

▪ Do NOT use taped wires, stranded conductor wires,

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

▪ Do NOT install a phase advancing capacitor, because

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

▪ All wiring must be performed by an authorized

electrician and must comply with the applicable legislation.

▪ Make electrical connections to the fixed wiring.

▪ All components procured on the site and all electrical

construction must comply with the applicable legislation.

Control box EKCB07CAV3 is designed to receive an input signal by which it switches the outdoor unit into forced-off mode. At that moment, the compressor will not operate.

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

6.4.3 Overview of electrical connections except external actuators

Normal power

supply

a Normal power supply b Preferential kWh rate power supply c Hydro part of the outdoor unit d Refrigerant part of the outdoor unit e Control box

f Backup heater kit 1 Power supply for outdoor unit 2 Interconnection cable to control box 3 Interconnection cable to backup heater kit 4 Power supply for control box 5 Power supply for backup heater kit 6 Preferential kWh rate power supply (voltage free contact) 7 Normal kWh rate power supply (to power the hydro part of

the outdoor unit in the event of a power supply interruption of the preferential kWh rate power supply)

Preferential kWh rate power supply

Power supply is NOT interrupted

Power supply is

interrupted

During preferential

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 hydro part of the outdoor unit (and of the control box, if part of the system).

kWh rate power supply activation, power supply is interrupted immediately or after some time by the electricity company. In this case, the hydro part of the outdoor unit (and the control box, if part of the system) must be powered by a separate normal power supply.

6.4.4 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 might NOT match your system layout.

Packaged air-cooled water chillers and packaged air to water heat

EWAQ+EWYQ004+005BAVP

pumps

4P492900-1 – 2017.06

6 Preparation

1 2

10 9 7 8

23 25 24

21 20

19 18

Item Description Wires Maximum

running

current

10 Interconnection cable

for valve kit EKMBHBP1 (between

3 (of which 2 are shared with those of item 10)

(f)

outdoor unit and control box)

User interface

11 User interface 2

(c)

Optional equipment

12 Preferential kWh rate

(d)

power supply (voltagefree contact)

13 Space heating/cooling

(i)

operation control (or

a Backup heater kit

b Outdoor unit

c Control box

d Option box

14 Room thermostat 3 or 4 100mA

15 Valve kit EKMBHBP1 3

Outdoor unit

Item Description Wires Maximum

running

current

Power supply

1 Power supply for

2+GND

(a)

outdoor unit

2 Normal kWh rate power

2 6.3A

supply

User interface

3 User interface 2

(b)

Optional equipment

4 Remote outdoor sensor 2

(c)

Field-supplied components

5 Space heating/cooling

(c)

operation control (or shut‑off valve)

(a) Refer to name plate on outdoor unit. (b) Cable section 0.75mm² till 1.25mm²; maximum length:

500m. Applicable for both single user interface and dual user interface connection.

Backup heater kit

Control box

Item Description Wires Maximum

running

current

Power supply

6 Power supply for

2+GND

(a)

control box

Power supply

16 Backup heater power

Interconnection cable

17 Interconnection cable

Interconnection cable

7 Interconnection cable

(b)

between outdoor unit and control box

8 Interconnection cable

9 Interconnection cable

for the user interface (between outdoor unit and control box)

for the space heating/ cooling operation control (or shut‑off

(c)

(h)

Backup heater Power supply Required number of

EKMBUHCA3V3 1× 230V 2+GND

EKMBUHCA9W1 1× 230V 2+GND+2 bridges

Option box

valve) (between outdoor unit and control box)

Power supply

shut‑off valve)

(e)

(g)

(a) Cable section 2.5mm². (b) Cable section 0.75mm² till 1.25mm²; maximum length:

20m.

500m. Applicable for both single user interface and dual user interface connection.

(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) If valve kit EKMBHBP1 is part of the system, then the

required cable section is 0.75mm². If valve kit EKMBHBP1 is NOT part of the system, then the minimum required cable section is 0.75mm², and the maximum cable length is 10m.

(f) Cable section 0.75mm².

(g) The valve and connection wire (12m) are delivered with

the valve kit.

(h) If valve kit EKMBHBP1 is part of the system, then the

required cable section is 0.75mm². If valve kit EKMBHBP1 is NOT part of the system, then the required cable section is 1.5mm².

(i) If valve kit EKMBHBP1 is part of the system, then the

required cable section is 0.75mm². If valve kit EKMBHBP1 is NOT part of the system, then the minimum required cable section is 0.75mm².

Item Description Wires Maximum

running

current

See table below. —

supply

between backup heater kit and control box

(a) Minimum cable section 0.75mm²; maximum length: 10m.

7 (6V3, 6W1, 9W1)

6 (3V3)

(a)

conductors

3× 400V 4+GND

Item Description Wires Maximum

running

current

EWAQ+EWYQ004+005BAVP Packaged air-cooled water chillers and packaged air to water heat pumps 4P492900-1 – 2017.06

Installer reference guide

7 Installation

8×

3×

2×

Item Description Wires Maximum

18 Power supply for option

box

Interconnection cable

19 Interconnection cable

between option box and control box

Optional equipment

20 Remote indoor sensor 2

Field-supplied components

21 Electric meter 2 (per meter)

22 Power consumption

digital inputs

23 Alarm output 2

24 Space cooling/heating

ON/OFF output

25 Changeover to external

heat source

(a) Cable section 2.5mm². (b) Minimum cable section 0.75mm².

NOTICE

▪ More technical specifications of the different

connections are indicated on the inside of the units (outdoor unit, control box, option box and backup heater).

▪ For how to connect the electrical wiring to the outdoor

unit (and if part of the system, the control box, option box, and backup heater), refer to "7.8 Connecting the

electrical wiring"on page37.

2+GND

3 (max 3m)

2 (per input signal)

running

current

(a)

(b)

DANGER: RISK OF ELECTROCUTION

Do NOT leave the unit unattended when the service cover is removed.

7.2.2 To open the outdoor unit

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING

7.2.3 To open the switch box cover of the outdoor unit

7 Installation

7.1 Overview: Installation

This chapter describes what you have to do and know on-site to install the system.

Typical workflow

Installation typically consists of the following stages:

▪ Mounting the outdoor unit

▪ Mounting the control box (if applicable)

▪ Mounting the option box (if applicable)

▪ Mounting the backup heater (if applicable)

▪ Connecting the water piping

▪ Connecting the electrical wiring

▪ Finishing the installation of the outdoor unit

▪ Finishing the installation of the control box (if applicable)

▪ Finishing the installation of the backup heater (if applicable)

7.2 Opening the units

7.2.1 About opening the units

At certain times, you have to open the unit. Example:

▪ When connecting the electrical wiring

▪ When maintaining or servicing the unit

Installer reference guide

7.2.4 To open the control box

EWAQ+EWYQ004+005BAVP

Packaged air-cooled water chillers and packaged air to water heat

pumps

4P492900-1 – 2017.06

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