Daikin EWYA004D2V3P How to use

Installer reference guide
Packaged air-cooled water chillers
and packaged air to water heat pumps
EWAA004D2V3P
EWAA006D2V3P
EWAA008D2V3P
EWAA004D2V3P-H
EWAA006D2V3P-H
EWAA008D2V3P-H
EWYA004D2V3P
EWYA006D2V3P
EWYA008D2V3P
EWYA004D2V3P-H
EWYA006D2V3P-H
EWYA008D2V3P-H
https://daikintechnicaldatahub.eu

Table of contents
Installer reference guide
2
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
Table of contents
1 About this document 5
1.1 Meaning of warnings and symbols................................................................................................................................. 6
1.2 Installer reference guide at a glance .............................................................................................................................. 7
2 General safety precautions 9
2.1 For the installer............................................................................................................................................................... 9
2.1.1 General ........................................................................................................................................................... 9
2.1.2 Installation site ............................................................................................................................................... 10
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 10
2.1.4 Water .............................................................................................................................................................. 12
2.1.5 Electrical ......................................................................................................................................................... 12
3 Specific installer safety instructions 15
4 About the box 18
4.1 Outdoor unit ................................................................................................................................................................... 18
4.1.1 To unpack the outdoor unit ........................................................................................................................... 18
4.1.2 To remove the accessories from the outdoor unit........................................................................................ 18
5 About the units and options 20
5.1 Identification ................................................................................................................................................................... 20
5.1.1 Identification label: Outdoor unit .................................................................................................................. 20
5.2 Combining units and options.......................................................................................................................................... 21
5.2.1 Possible options for the outdoor unit............................................................................................................ 21
6 Application guidelines 24
6.1 Overview: Application guidelines ................................................................................................................................... 24
6.2 Setting up the space heating/cooling system ................................................................................................................ 25
6.2.1 Single room..................................................................................................................................................... 26
6.2.2 Multiple rooms – OneLWT zone ................................................................................................................... 30
6.2.3 Multiple rooms – Two LWT zones.................................................................................................................. 33
6.3 Setting up an auxiliary heat source for space heating ................................................................................................... 36
6.4 Setting up the energy metering...................................................................................................................................... 39
6.4.1 Produced heat ................................................................................................................................................ 39
6.4.2 Consumed energy........................................................................................................................................... 40
6.4.3 Power supply layouts with power meters ..................................................................................................... 40
6.5 Setting up the power consumption control ................................................................................................................... 43
6.5.1 Permanent power limitation.......................................................................................................................... 44
6.5.2 Power limitation activated by digital inputs .................................................................................................. 44
6.5.3 Power limitation process................................................................................................................................ 45
6.5.4 BBR16 power limitation.................................................................................................................................. 46
6.6 Setting up an external temperature sensor ................................................................................................................... 47
7 Unit installation 48
7.1 Preparing the installation site......................................................................................................................................... 48
7.1.1 Installation site requirements of the outdoor unit........................................................................................ 48
7.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 50
7.2 Mounting the outdoor unit............................................................................................................................................. 51
7.2.1 About mounting the outdoor unit ................................................................................................................. 51
7.2.2 Precautions when mounting the outdoor unit.............................................................................................. 52
7.2.3 To provide the installation structure ............................................................................................................. 52
7.2.4 To install the outdoor unit ............................................................................................................................. 53
7.2.5 To provide drainage........................................................................................................................................ 54
7.2.6 To prevent the outdoor unit from falling over .............................................................................................. 55
7.3 Opening and closing the unit.......................................................................................................................................... 56
7.3.1 About opening the units................................................................................................................................. 56
7.3.2 To open the outdoor unit............................................................................................................................... 56
7.3.3 To rotate the switch box ................................................................................................................................ 57
7.3.4 To close the outdoor unit............................................................................................................................... 57
8 Piping installation 59
8.1 Preparing water piping ................................................................................................................................................... 59
8.1.1 Water circuit requirements............................................................................................................................ 59
8.1.2 Formula to calculate the expansion vessel pre-pressure .............................................................................. 61
8.1.3 To check the water volume and flow rate ..................................................................................................... 61
8.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 64
8.1.5 To check the water volume: Examples .......................................................................................................... 64

Table of contents
Installer reference guide
3
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
8.2 Connecting water piping................................................................................................................................................. 65
8.2.1 About connecting the water piping ............................................................................................................... 65
8.2.2 Precautions when connecting the water piping............................................................................................ 65
8.2.3 To connect the water piping .......................................................................................................................... 66
8.2.4 To protect the water circuit against freezing ................................................................................................ 67
8.2.5 To fill the water circuit ................................................................................................................................... 70
8.2.6 To insulate the water piping .......................................................................................................................... 71
9 Electrical installation 72
9.1 About connecting the electrical wiring .......................................................................................................................... 72
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 72
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 73
9.1.3 About electrical compliance........................................................................................................................... 74
9.1.4 About preferential kWh rate power supply................................................................................................... 74
9.1.5 Overview of electrical connections except external actuators ..................................................................... 75
9.2 Connections to the outdoor unit.................................................................................................................................... 76
9.2.1 To connect the electrical wiring to the outdoor unit .................................................................................... 78
9.2.2 To connect the main power supply................................................................................................................ 79
9.2.3 External backup heater kit ............................................................................................................................. 82
9.2.4 To connect the user interface ........................................................................................................................ 88
9.2.5 To connect the shut-off valve ........................................................................................................................ 91
9.2.6 To connect the electricity meters .................................................................................................................. 92
9.2.7 To connect the alarm output ......................................................................................................................... 93
9.2.8 To connect the space cooling/heating ON/OFF output................................................................................. 94
9.2.9 To connect the changeover to external heat source..................................................................................... 95
9.2.10 To connect the power consumption digital inputs........................................................................................ 96
9.2.11 To connect the safety thermostat (normally closed contact) ....................................................................... 97
9.2.12 To connect a Smart Grid................................................................................................................................. 97
9.2.13 To connect the WLAN cartridge (delivered as accessory) ............................................................................. 101
10 Finishing the outdoor unit installation 102
10.1 To check the insulation resistance of the compressor .................................................................................................. 102
11 Configuration 103
11.1 Overview: Configuration................................................................................................................................................. 103
11.1.1 To access the most used commands ............................................................................................................. 104
11.1.2 To connect the PC cable to the switch box.................................................................................................... 106
11.2 Configuration wizard....................................................................................................................................................... 107
11.3 Possible screens .............................................................................................................................................................. 108
11.3.1 Possible screens: Overview ............................................................................................................................ 108
11.3.2 Home screen................................................................................................................................................... 109
11.3.3 Main menu screen.......................................................................................................................................... 111
11.3.4 Menu screen................................................................................................................................................... 112
11.3.5 Setpoint screen............................................................................................................................................... 113
11.3.6 Detailed screen with values ........................................................................................................................... 114
11.4 Preset values and schedules........................................................................................................................................... 114
11.4.1 Using preset values......................................................................................................................................... 114
11.4.2 Using and programming schedules................................................................................................................ 115
11.4.3 Schedule screen: Example.............................................................................................................................. 117
11.4.4 Setting the energy prices................................................................................................................................ 121
11.5 Weather-dependent curve ............................................................................................................................................. 123
11.5.1 What is a weather-dependent curve? ........................................................................................................... 123
11.5.2 2-points curve................................................................................................................................................. 124
11.5.3 Slope-offset curve........................................................................................................................................... 125
11.5.4 Using weather-dependent curves.................................................................................................................. 126
11.6 Settings menu ................................................................................................................................................................. 128
11.6.1 Malfunctioning ............................................................................................................................................... 128
11.6.2 Room............................................................................................................................................................... 128
11.6.3 Main zone ....................................................................................................................................................... 133
11.6.4 Additional zone............................................................................................................................................... 142
11.6.5 Space heating/cooling .................................................................................................................................... 146
11.6.6 User settings ................................................................................................................................................... 156
11.6.7 Information..................................................................................................................................................... 160
11.6.8 Installer settings ............................................................................................................................................. 161
11.6.9 Commissioning ............................................................................................................................................... 179
11.6.10 User profile ..................................................................................................................................................... 179
11.6.11 Operation........................................................................................................................................................ 180
11.6.12 WLAN .............................................................................................................................................................. 180
11.7 Menu structure: Overview user settings........................................................................................................................ 183
11.8 Menu structure: Overview installer settings.................................................................................................................. 184

Table of contents
Installer reference guide
4
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
12 Commissioning 185
12.1 Overview: Commissioning .............................................................................................................................................. 185
12.2 Precautions when commissioning .................................................................................................................................. 186
12.3 Checklist before commissioning..................................................................................................................................... 186
12.4 Checklist during commissioning ..................................................................................................................................... 187
12.4.1 Minimum flow rate......................................................................................................................................... 187
12.4.2 Air purge function........................................................................................................................................... 188
12.4.3 Operation test run .......................................................................................................................................... 190
12.4.4 Actuator test run ............................................................................................................................................ 190
12.4.5 Underfloor heating screed dryout ................................................................................................................. 191
13 Hand-over to the user 195
14 Maintenance and service 196
14.1 Maintenance safety precautions.................................................................................................................................... 196
14.2 Yearly maintenance ........................................................................................................................................................ 196
14.2.1 Yearly maintenance outdoor unit: overview ................................................................................................. 196
14.2.2 Yearly maintenance outdoor unit: instructions ............................................................................................. 197
15 Troubleshooting 198
15.1 Overview: Troubleshooting ............................................................................................................................................ 198
15.2 Precautions when troubleshooting ................................................................................................................................ 198
15.3 Solving problems based on symptoms........................................................................................................................... 199
15.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 199
15.3.2 Symptom: Hot water does NOT reach the desired temperature.................................................................. 199
15.3.3 Symptom: The compressor does NOT start................................................................................................... 200
15.3.4 Symptom: The system is making gurgling noises after commissioning ........................................................ 200
15.3.5 Symptom: The pump is blocked..................................................................................................................... 201
15.3.6 Symptom: The pump is making noise (cavitation)......................................................................................... 202
15.3.7 Symptom: The pressure relief valve opens.................................................................................................... 202
15.3.8 Symptom: The water pressure relief valve leaks ........................................................................................... 202
15.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 203
15.3.10 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 203
15.4 Solving problems based on error codes ......................................................................................................................... 203
15.4.1 To display the help text in case of a malfunction .......................................................................................... 204
15.4.2 Error codes of the unit ................................................................................................................................... 204
16 Disposal 209
16.1 Overview: Disposal.......................................................................................................................................................... 209
16.2 To pump down ................................................................................................................................................................ 209
17 Technical data 211
17.1 Piping diagram: Outdoor unit ......................................................................................................................................... 212
17.2 Wiring diagram: Outdoor unit ........................................................................................................................................ 213
17.3 ESP curve: Outdoor unit ................................................................................................................................................. 221
18 Glossary 222
19 Field settings table 223

1 | About this document
Installer reference guide
5
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
1 About this document
Target audience
Authorised installers
Documentation set
This document is part of a documentation set. The complete set consists of:
▪General safety precautions:
-Safety instructions that you must read before installing
-Format: Paper (in the box of the outdoor unit)
▪Operation manual:
-Quick guide for basic usage
-Format: Paper (in the box of the outdoor unit)
▪User reference guide:
-Detailed step-by-step instructions and background information for basic and
advanced usage
-Format: Digital files on https://www.daikin.eu. Use the search function to
find your model.
▪Installation manual:
-Installation instructions
-Format: Paper (in the box of the outdoor unit)
▪Installer reference guide:
-Preparation of the installation, good practices, reference data,…
-Format: Digital files on https://www.daikin.eu. Use the search function to
find your model.
▪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 https://
www.daikin.eu. Use the search function to find your model.
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 Business Portal
(authentication required).
Online tools
In addition to the documentation set, some online tools are available for installers:
▪Daikin Technical Data Hub
-Central hub for technical specifications of the unit, useful tools, digital
resources, and more.
-Publicly accessible via https://daikintechnicaldatahub.eu.

1 | About this document
Installer reference guide
6
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
▪Heating Solutions Navigator
-Digital toolbox that offers a variety of tools to facilitate the installation and
configuration of heating systems.
-To access Heating Solutions Navigator, registration to the Stand By Me
platform is required. For more information, see https://
professional.standbyme.daikin.eu.
▪Daikin e-Care
-Mobile app for installers and service technicians that allows you to register,
configure and troubleshoot heating systems.
-The mobile app can be downloaded for iOS and Android devices using the QR
codes below. Registration to the Stand By Me platform is required to access
the app.
App Store Google Play
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/SCALDING
Indicates a situation that could result in burning/scalding because of extreme hot or
cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate injury.
NOTICE
Indicates a situation that could result in equipment or property damage.

1 | About this document
Installer reference guide
7
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
INFORMATION
Indicates useful tips or additional information.
Symbols used on the unit:
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.
The unit contains rotating parts. Be careful when servicing or
inspecting the unit.
Symbols used in the documentation:
Symbol Explanation
Indicates a figure title or a reference to it.
Example: " 1–3 Figure title" means "Figure 3 in chapter 1".
Indicates a table title or a reference to it.
Example: " 1–3 Table title" means "Table 3 in chapter 1".
1.2 Installer reference guide at a glance
Chapter Description
About the documentation What documentation exists for the installer
General safety precautions Safety instructions that you must read before
installing
Specific installer safety
instructions
About the box How to handle the box, unpack the units and
remove their accessories
About the units and options ▪How to identify the units
▪Possible combinations of units and options
Application guidelines Various installation setups of the system
Unit installation What to do and know to install the system,
including information on how to prepare for an
installation
Piping installation What to do and know to install the piping of the
system, including information on how to
prepare for an installation
Electrical installation What to do and know to install the electrical
components of the system, including
information on how to prepare for an
installation

1 | About this document
Installer reference guide
8
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
Chapter Description
Finishing the outdoor unit
installation
What to do after unit installation, piping
installation and electrical installation
Configuration What to do and know to configure the system
after it is installed
Commissioning What to do and know to commission the system
after it is configured
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 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.

2 | General safety precautions
Installer reference guide
9
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
2 General safety precautions
In this chapter
2.1 For the installer....................................................................................................................................................................... 9
2.1.1 General ................................................................................................................................................................... 9
2.1.2 Installation site ....................................................................................................................................................... 10
2.1.3 Refrigerant — in case of R410A or R32 ................................................................................................................. 10
2.1.4 Water...................................................................................................................................................................... 12
2.1.5 Electrical ................................................................................................................................................................. 12
2.1 For the installer
2.1.1 General
DANGER: RISK OF BURNING/SCALDING
▪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
Improper installation or attachment of equipment or accessories could result in
electrical 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).
WARNING
Tear apart and throw away plastic packaging bags so that nobody, especially
children, can play with them. Possible risk: suffocation.
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
Wear adequate personal protective equipment (protective gloves, safety glasses,…)
when installing, maintaining or servicing the system.
CAUTION
Do NOT touch the air inlet or aluminium fins of the unit.
CAUTION
▪Do NOT place any objects or equipment on top of the unit.
▪Do NOT sit, climb or stand on the unit.

2 | General safety precautions
Installer reference guide
10
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
If you are NOT sure how to install or operate the unit, contact your dealer.
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.
2.1.2 Installation site
▪Provide sufficient space around the unit for servicing and air circulation.
▪Make sure the installation site withstands the weight and vibration of the unit.
▪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.
2.1.3 Refrigerant — in case of R410A or R32
If applicable. See the installation manual or installer reference guide of your
application for more information.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump down the system, and there
is a leak in the refrigerant circuit:
▪Do NOT use the unit's automatic pump down function, with which you can collect
all refrigerant from the system into the outdoor unit. Possible consequence: Self-
combustion and explosion of the compressor because of air going into the
operating compressor.
▪Use a separate recovery system so that the unit's compressor does NOT have to
operate.
WARNING
During tests, NEVER pressurise the product with a pressure higher than the
maximum allowable pressure (as indicated on the nameplate of the unit).

2 | General safety precautions
Installer reference guide
11
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
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 might be produced if refrigerant gas comes into contact with fire.
WARNING
ALWAYS recover the refrigerant. Do NOT release them directly into the environment.
Use a vacuum pump to evacuate the installation.
WARNING
Make sure there is no oxygen in the system. Refrigerant may ONLY be charged after
performing the leak test and the vacuum drying.
Possible consequence: Self-combustion and explosion of the compressor because of
oxygen going into the operating compressor.
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.
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.
NOTICE
After all the piping has been connected, make sure there is no gas leak. Use nitrogen
to perform a gas leak detection.
▪In case recharge is required, see 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")
Charge with the cylinder upright.

2 | General safety precautions
Installer reference guide
12
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
If Then
A siphon tube is NOT present Charge with the cylinder upside down.
▪Open refrigerant cylinders slowly.
▪Charge the refrigerant in liquid form. Adding it in gas form may prevent normal
operation.
CAUTION
When the refrigerant charging procedure is done or when pausing, close the valve of
the refrigerant tank immediately. If the valve is NOT closed immediately, remaining
pressure might charge additional refrigerant. Possible consequence: Incorrect
refrigerant amount.
2.1.4 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 2020/2184.
2.1.5 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 10minutes, and measure the voltage
at the terminals of main circuit capacitors or electrical components before
servicing. The voltage MUST be less than 50VDC before you can touch electrical
components. For the location of the terminals, see the wiring diagram.
▪Do NOT touch electrical components with wet hands.
▪Do NOT leave the unit unattended when the service cover is removed.
WARNING
If NOT factory installed, a main switch or other means for disconnection, having a
contact separation in all poles providing full disconnection under overvoltage
categoryIII condition, MUST be installed in the fixed wiring.

2 | General safety precautions
Installer reference guide
13
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
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
electrical 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.
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.
CAUTION
▪When connecting the power supply: connect the earth cable first, before making
the current-carrying connections.
▪When disconnecting the power supply: disconnect the current-carrying cables
first, before separating the earth connection.
▪The length of the conductors between the power supply stress relief and the
terminal block itself MUST be as such that the current-carrying wires are
tautened before the earth wire is in case the power supply is pulled loose from
the stress relief.
NOTICE
Precautions when laying power wiring:
▪Do NOT connect wiring of different thicknesses to the power terminal block (slack
in the power wiring may cause abnormal heat).
▪When connecting wiring which is the same thickness, do as shown in the figure
above.
▪For wiring, use the designated power wire and connect firmly, then secure to
prevent outside pressure being exerted on the terminal board.
▪Use an appropriate screwdriver for tightening the terminal screws. A screwdriver
with a small head will damage the head and make proper tightening impossible.
▪Over-tightening the terminal screws may break them.

2 | General safety precautions
Installer reference guide
14
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
Install power cables at least 1 meter away from televisions or radios to prevent
interference. Depending on the radio waves, a distance of 1 meter may NOT be
sufficient.
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.

3 | Specific installer safety instructions
Installer reference guide
15
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
3 Specific installer safety instructions
Always observe the following safety instructions and regulations.
Installation site (see "7.1Preparing the installation site"[ 4
48])
WARNING
Follow the service space dimensions in this manual for correct installation of the unit.
See "7.1.1Installation site requirements of the outdoor unit"[448].
Special requirements for R32 (see "7.1.1Installation site requirements of the
outdoor unit"[
4
48])
WARNING
▪Do NOT pierce or burn refrigerant cycle parts.
▪Do NOT use means to accelerate the defrosting process or to clean the
equipment, other than those recommended by the manufacturer.
▪Be aware that R32 refrigerant does NOT contain an odour.
WARNING
The appliance shall be stored so as to prevent mechanical damage and in a well-
ventilated room without continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric heater).
WARNING
Make sure installation, servicing, maintenance and repair comply with instructions
from Daikin and with applicable legislation and are executed ONLY by authorised
persons.
Mounting the outdoor unit (see "7.2Mounting the outdoor unit"[ 4
51])
WARNING
Fixing method of the outdoor unit MUST be in accordance with the instructions from
this manual. See "7.2Mounting the outdoor unit"[451].
Opening and closing the unit (see "7.3Opening and closing the unit"[ 4
56])
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
Piping installation (see "8Piping installation"[ 4
59])
WARNING
The field piping method MUST be in accordance with the instructions from this
manual. See "8Piping installation"[459].
In case of freeze protection by glycol:

3 | Specific installer safety instructions
Installer reference guide
16
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
WARNING
Ethylene glycol is toxic.
WARNING
Due to the presence of glycol, corrosion of the system is possible. Uninhibited glycol
will turn acidic under the influence of oxygen. This process is accelerated by the
presence of copper and high temperatures. The acidic uninhibited glycol attacks
metal surfaces and forms galvanic corrosion cells that cause severe damage to the
system. Therefore it is important that:
▪the water treatment is correctly executed by a qualified water specialist,
▪a glycol with corrosion inhibitors is selected to counteract acids formed by the
oxidation of glycols,
▪no automotive glycol is used because their corrosion inhibitors have a limited
lifetime and contain silicates which can foul or plug the system,
▪galvanized pipes are NOT used in glycol systems since the presence may lead to
the precipitation of certain components in the glycol's corrosion inhibitor.
Electrical installation (see "9Electrical installation"[ 4
72])
DANGER: RISK OF ELECTROCUTION
WARNING
Electrical wiring connection method MUST be in accordance with the instructions
from:
▪This manual. See "9Electrical installation"[472].
▪The wiring diagram, which is delivered with the unit, located at the inside of the
service cover. For a translation of its legend, see "17.2Wiring diagram: Outdoor
unit"[4213].
WARNING
ALWAYS use multicore cable for power supply cables.
CAUTION
Do NOT push or place redundant cable length into the unit.
WARNING
The backup heater MUST have a dedicated power supply and MUST be protected by
the safety devices required by the applicable legislation.
CAUTION
To guarantee the unit is completely earthed, ALWAYS connect the backup heater
power supply and the earth cable.
WARNING
Stripped wire. Make sure that stripped wire cannot make contact with possible
water on the bottom plate.

3 | Specific installer safety instructions
Installer reference guide
17
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
Commissioning (see "12Commissioning"[ 4
185])
WARNING
Commissioning method MUST be in accordance with the instructions from this
manual. See "12Commissioning"[4185].

4 | About the box
Installer reference guide
18
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
4 About the box
Keep the following in mind:
▪At delivery, the unit MUST be checked for damage and completeness. Any
damage or missing parts MUST be reported immediately to the claims agent of
the carrier.
▪Bring the packed unit as close as possible to its final installation position to
prevent damage during transport.
▪Prepare in advance the path along which you want to bring the unit to its final
installation position.
In this chapter
4.1 Outdoor unit ........................................................................................................................................................................... 18
4.1.1 To unpack the outdoor unit ................................................................................................................................... 18
4.1.2 To remove the accessories from the outdoor unit ............................................................................................... 18
4.1 Outdoor unit
4.1.1 To unpack the outdoor unit
1Cut straps and remove the cardbord.
2Remove the top packaging.
4.1.2 To remove the accessories from the outdoor unit
1Remove the accessories on top and in front of the unit.

4 | About the box
Installer reference guide
19
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
2×
h
3×4×
ji
1×
g
1× 1×1×
a b d
1×
c
1×
e
1×
f
8× 4× 8×
k
4×
aInstallation manual vibration dampers
bGeneral safety precautions
cOperation manual
dInstallation manual
eAddendum book for optional equipment
fEnergy label
gUser interface (front plate, rear plate, screws, and wall plugs)
hUnit mounting plate
iVibration dampers
jCable tie
kBolts, nuts, washers, and spring washers
2After opening the unit (see "7.3.2To open the outdoor unit"[456]), remove
the accessory inside the unit.
m
mShutoff valve

5 | About the units and options
Installer reference guide
20
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
5 About the units and options
In this chapter
5.1 Identification........................................................................................................................................................................... 20
5.1.1 Identification label: Outdoor unit .......................................................................................................................... 20
5.2 Combining units and options.................................................................................................................................................. 21
5.2.1 Possible options for the outdoor unit.................................................................................................................... 21
5.1 Identification
5.1.1 Identification label: Outdoor unit
Location
Model identification
Example: EWYA006D2V3P-H
Code Explanation
EW European water chiller
Y A=Cooling only
Y=Reversible (heating+cooling)
A Refrigerant R32
006 Capacity class
D2 Model series
V3 Power supply:
V3=1N~, 230VAC, 50Hz
P Pump included
-H Heater tape included(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.