Daikin EHBH04DA6V7 How to use

Installer reference guide
Daikin Altherma 3 R W
ERGA04DAV3(A)
ERGA06DAV3(A)
ERGA08DAV3(A)
EHBH04DA6V7
EHBH08DA6V7
EHBH08DA9W7
EHBX04DA6V7
EHBX08DA6V7
EHBX08DA9W7
+

Table of contents
Installer reference guide
2
ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
Table of contents
1 General safety precautions 6
1.1 About the documentation .............................................................................................................................................. 6
1.1.1 Meaning of warnings and symbols ................................................................................................................ 6
1.2 For the installer............................................................................................................................................................... 7
1.2.1 General ........................................................................................................................................................... 7
1.2.2 Installation site ............................................................................................................................................... 8
1.2.3 Refrigerant...................................................................................................................................................... 8
1.2.4 Brine................................................................................................................................................................ 10
1.2.5 Water .............................................................................................................................................................. 11
1.2.6 Electrical ......................................................................................................................................................... 11
2 About the documentation 13
2.1 About this document ...................................................................................................................................................... 13
2.2 Installer reference guide at a glance .............................................................................................................................. 13
3 About the box 15
3.1 Overview: About the box ................................................................................................................................................ 15
3.2 Outdoor unit ................................................................................................................................................................... 15
3.2.1 To unpack the outdoor unit ........................................................................................................................... 15
3.2.2 To handle the outdoor unit............................................................................................................................ 15
3.2.3 To remove the accessories from the outdoor unit........................................................................................ 16
3.3 Indoor unit ...................................................................................................................................................................... 17
3.3.1 To unpack the indoor unit.............................................................................................................................. 17
3.3.2 To remove the accessories from the indoor unit .......................................................................................... 17
4 About the units and options 18
4.1 Overview: About the units and options.......................................................................................................................... 18
4.2 Identification ................................................................................................................................................................... 18
4.2.1 Identification label: Outdoor unit .................................................................................................................. 18
4.2.2 Identification label: Indoor unit ..................................................................................................................... 19
4.3 Combining units and options.......................................................................................................................................... 19
4.3.1 Possible options for the outdoor unit............................................................................................................ 19
4.3.2 Possible options for the indoor unit............................................................................................................... 20
4.3.3 Possible combinations of indoor unit and outdoor unit................................................................................ 22
4.3.4 Possible combinations of indoor unit and domestic hot water tank ............................................................ 22
5 Application guidelines 23
5.1 Overview: Application guidelines ................................................................................................................................... 23
5.2 Setting up the space heating/cooling system ................................................................................................................ 23
5.2.1 Single room..................................................................................................................................................... 24
5.2.2 Multiple rooms – OneLWT zone ................................................................................................................... 28
5.2.3 Multiple rooms – TwoLWT zones.................................................................................................................. 32
5.3 Setting up an auxiliary heat source for space heating ................................................................................................... 34
5.4 Setting up the domestic hot water tank......................................................................................................................... 37
5.4.1 System layout – Standalone DHW tank ......................................................................................................... 37
5.4.2 Selecting the volume and desired temperature for the DHW tank .............................................................. 37
5.4.3 Setup and configuration – DHW tank ............................................................................................................ 39
5.4.4 DHW pump for instant hot water .................................................................................................................. 39
5.4.5 DHW pump for disinfection ........................................................................................................................... 40
5.4.6 DHW pump for tank preheating..................................................................................................................... 40
5.5 Setting up the energy metering...................................................................................................................................... 41
5.5.1 Produced heat ................................................................................................................................................ 41
5.5.2 Consumed energy........................................................................................................................................... 41
5.5.3 Normal kWh rate power supply ..................................................................................................................... 42
5.5.4 Preferential kWh rate power supply.............................................................................................................. 43
5.6 Setting up the power consumption control ................................................................................................................... 44
5.6.1 Permanent power limitation.......................................................................................................................... 45
5.6.2 Power limitation activated by digital inputs .................................................................................................. 45
5.6.3 Power limitation process................................................................................................................................ 46
5.7 Setting up an external temperature sensor ................................................................................................................... 47
6 Preparation 49
6.1 Overview: Preparation.................................................................................................................................................... 49
6.2 Preparing the installation site......................................................................................................................................... 49
6.2.1 Installation site requirements of the outdoor unit........................................................................................ 49
6.2.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 51

Table of contents
Installer reference guide
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ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
6.2.3 Installation site requirements of the indoor unit .......................................................................................... 52
6.3 Preparing refrigerant piping ........................................................................................................................................... 56
6.3.1 Refrigerant piping requirements.................................................................................................................... 56
6.3.2 Refrigerant piping insulation.......................................................................................................................... 56
6.4 Preparing water piping ................................................................................................................................................... 56
6.4.1 Water circuit requirements............................................................................................................................ 57
6.4.2 Formula to calculate the expansion vessel pre-pressure.............................................................................. 59
6.4.3 To check the water volume and flow rate ..................................................................................................... 59
6.4.4 Changing the pre-pressure of the expansion vessel...................................................................................... 61
6.4.5 To check the water volume: Examples .......................................................................................................... 62
6.5 Preparing electrical wiring .............................................................................................................................................. 63
6.5.1 About preparing electrical wiring................................................................................................................... 63
6.5.2 About preferential kWh rate power supply................................................................................................... 63
6.5.3 Overview of electrical connections except external actuators ..................................................................... 64
6.5.4 Overview of electrical connections for external and internal actuators....................................................... 65
7 Installation 67
7.1 Overview: Installation ..................................................................................................................................................... 67
7.2 Opening the units ........................................................................................................................................................... 67
7.2.1 About opening the units................................................................................................................................. 67
7.2.2 To open the outdoor unit............................................................................................................................... 67
7.2.3 To open the indoor unit ................................................................................................................................. 68
7.3 Mounting the outdoor unit............................................................................................................................................. 70
7.3.1 About mounting the outdoor unit ................................................................................................................. 70
7.3.2 Precautions when mounting the outdoor unit.............................................................................................. 70
7.3.3 To provide the installation structure ............................................................................................................. 70
7.3.4 To install the outdoor unit ............................................................................................................................. 73
7.3.5 To provide drainage........................................................................................................................................ 74
7.3.6 To prevent the outdoor unit from falling over .............................................................................................. 75
7.4 Mounting the indoor unit ............................................................................................................................................... 76
7.4.1 About mounting the indoor unit.................................................................................................................... 76
7.4.2 Precautions when mounting the indoor unit................................................................................................. 76
7.4.3 To install the indoor unit ................................................................................................................................ 76
7.4.4 To connect the drain hose to the drain ......................................................................................................... 78
7.5 Connecting the refrigerant piping .................................................................................................................................. 78
7.5.1 About connecting the refrigerant piping ....................................................................................................... 78
7.5.2 Precautions when connecting the refrigerant piping.................................................................................... 79
7.5.3 Guidelines when connecting the refrigerant piping...................................................................................... 80
7.5.4 Pipe bending guidelines ................................................................................................................................. 80
7.5.5 To flare the pipe end ...................................................................................................................................... 80
7.5.6 To braze the pipe end..................................................................................................................................... 81
7.5.7 Using the stop valve and service port............................................................................................................ 82
7.5.8 To connect the refrigerant piping to the outdoor unit ................................................................................. 83
7.5.9 To connect the refrigerant piping to the indoor unit .................................................................................... 84
7.6 Checking the refrigerant piping...................................................................................................................................... 84
7.6.1 About checking the refrigerant piping........................................................................................................... 84
7.6.2 Precautions when checking the refrigerant piping........................................................................................ 85
7.6.3 To check for leaks ........................................................................................................................................... 85
7.6.4 To perform vacuum drying............................................................................................................................. 85
7.7 Charging refrigerant........................................................................................................................................................ 86
7.7.1 About charging refrigerant............................................................................................................................. 86
7.7.2 Precautions when charging refrigerant ......................................................................................................... 87
7.7.3 To determine the additional refrigerant amount.......................................................................................... 88
7.7.4 To determine the complete recharge amount.............................................................................................. 88
7.7.5 To charge additional refrigerant .................................................................................................................... 88
7.7.6 To fix the fluorinated greenhouse gases label............................................................................................... 88
7.8 Connecting water piping................................................................................................................................................. 89
7.8.1 About connecting the water piping ............................................................................................................... 89
7.8.2 Precautions when connecting the water piping............................................................................................ 89
7.8.3 To connect the water piping .......................................................................................................................... 90
7.8.4 To fill the water circuit ................................................................................................................................... 91
7.8.5 To fill the domestic hot water tank................................................................................................................ 91
7.8.6 To insulate the water piping .......................................................................................................................... 91
7.9 Connecting the electrical wiring..................................................................................................................................... 92
7.9.1 About connecting the electrical wiring.......................................................................................................... 92
7.9.2 About electrical compliance........................................................................................................................... 92
7.9.3 Precautions when connecting the electrical wiring....................................................................................... 92
7.9.4 Guidelines when connecting the electrical wiring......................................................................................... 93
7.9.5 Specifications of standard wiring components.............................................................................................. 94
7.9.6 To connect the electrical wiring to the outdoor unit .................................................................................... 94

Table of contents
Installer reference guide
4
ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
7.9.7 To connect the electrical wiring to the indoor unit....................................................................................... 95
7.9.8 To connect the main power supply................................................................................................................ 97
7.9.9 To connect the backup heater power supply ................................................................................................ 98
7.9.10 To connect the shut-off valve ........................................................................................................................ 100
7.9.11 To connect the electricity meters .................................................................................................................. 101
7.9.12 To connect the domestic hot water pump .................................................................................................... 101
7.9.13 To connect the alarm output ......................................................................................................................... 101
7.9.14 To connect the space cooling/heating ON/OFF output................................................................................. 102
7.9.15 To connect the changeover to external heat source..................................................................................... 102
7.9.16 To connect the power consumption digital inputs........................................................................................ 103
7.9.17 To connect the safety thermostat (normally closed contact) ....................................................................... 103
7.10 Finishing the outdoor unit installation ........................................................................................................................... 104
7.10.1 To finish the outdoor unit installation ........................................................................................................... 104
7.11 Finishing the indoor unit installation.............................................................................................................................. 104
7.11.1 To close the indoor unit ................................................................................................................................. 104
8 Configuration 106
8.1 Overview: Configuration................................................................................................................................................. 106
8.1.1 To access the most used commands ............................................................................................................. 106
8.2 Configuration wizard....................................................................................................................................................... 108
8.3 Possible screens .............................................................................................................................................................. 110
8.3.1 Possible screens: Overview ............................................................................................................................ 110
8.3.2 Home screen................................................................................................................................................... 110
8.3.3 Main menu screen.......................................................................................................................................... 112
8.3.4 Menu screen................................................................................................................................................... 113
8.3.5 Setpoint screen............................................................................................................................................... 113
8.3.6 Detailed screen with values ........................................................................................................................... 114
8.3.7 Schedule screen: Example.............................................................................................................................. 114
8.4 Weather-dependent curve ............................................................................................................................................. 119
8.4.1 What is a weather-dependent curve? ........................................................................................................... 119
8.4.2 2-points curve................................................................................................................................................. 119
8.4.3 Slope-offset curve........................................................................................................................................... 120
8.4.4 Using weather-dependent curves.................................................................................................................. 122
8.5 Settings menu ................................................................................................................................................................. 124
8.5.1 Malfunctioning ............................................................................................................................................... 124
8.5.2 Room............................................................................................................................................................... 124
8.5.3 Main zone ....................................................................................................................................................... 127
8.5.4 Additional zone............................................................................................................................................... 137
8.5.5 Space heating/cooling .................................................................................................................................... 141
8.5.6 Tank................................................................................................................................................................. 149
8.5.7 User settings ................................................................................................................................................... 156
8.5.8 Information..................................................................................................................................................... 160
8.5.9 Installer settings ............................................................................................................................................. 161
8.6 Menu structure: Overview user settings........................................................................................................................ 179
8.7 Menu structure: Overview installer settings.................................................................................................................. 180
9 Commissioning 181
9.1 Overview: Commissioning .............................................................................................................................................. 181
9.2 Precautions when commissioning.................................................................................................................................. 181
9.3 Checklist before commissioning..................................................................................................................................... 181
9.4 Checklist during commissioning ..................................................................................................................................... 182
9.4.1 To check the minimum flow rate ................................................................................................................... 183
9.4.2 Air purge function........................................................................................................................................... 183
9.4.3 To perform an operation test run.................................................................................................................. 185
9.4.4 To perform an actuator test run .................................................................................................................... 185
9.4.5 Underfloor heating screed dryout ................................................................................................................. 186
10 Hand-over to the user 190
11 Maintenance and service 191
11.1 Overview: Maintenance and service .............................................................................................................................. 191
11.2 Maintenance safety precautions .................................................................................................................................... 191
11.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 191
11.4 Checklist for yearly maintenance of the indoor unit ..................................................................................................... 191
11.5 About cleaning the water filter in case of trouble ......................................................................................................... 194
11.5.1 To remove the water filter ............................................................................................................................. 194
11.5.2 To clean the water filter in case of trouble.................................................................................................... 195
11.5.3 To install the water filter ................................................................................................................................ 196
12 Troubleshooting 197
12.1 Overview: Troubleshooting ............................................................................................................................................ 197

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Installer reference guide
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ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
12.2 Precautions when troubleshooting ................................................................................................................................ 197
12.3 Solving problems based on symptoms........................................................................................................................... 198
12.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 198
12.3.2 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 199
12.3.3 Symptom: The system is making gurgling noises after commissioning ........................................................ 199
12.3.4 Symptom: The pump is making noise (cavitation)......................................................................................... 200
12.3.5 Symptom: The pressure relief valve opens.................................................................................................... 200
12.3.6 Symptom: The water pressure relief valve leaks........................................................................................... 201
12.3.7 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 201
12.3.8 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 202
12.3.9 Symptom: Decoration panels are pushed away due to a swollen tank ........................................................ 202
12.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 202
12.4 Solving problems based on error codes ......................................................................................................................... 203
12.4.1 To display the help text in case of a malfunction .......................................................................................... 203
12.4.2 Error codes: Overview .................................................................................................................................... 204
13 Disposal 208
13.1 Overview: Disposal.......................................................................................................................................................... 208
13.2 To pump down ................................................................................................................................................................ 208
13.3 To start and stop forced cooling..................................................................................................................................... 209
14 Technical data 211
14.1 Piping diagram: Outdoor unit ......................................................................................................................................... 211
14.2 Piping diagram: Indoor unit ............................................................................................................................................ 212
14.3 Wiring diagram: Outdoor unit ........................................................................................................................................ 213
14.4 Wiring diagram: Indoor unit ........................................................................................................................................... 215
14.5 Table 1 – Maximum refrigerant charge allowed in a room: indoor unit ....................................................................... 221
14.6 Table 2 – Minimum floor area: indoor unit.................................................................................................................... 221
14.7 Table 3 – Minimum venting opening area for natural ventilation: indoor unit ............................................................ 223
14.8 ESP curve: Indoor unit..................................................................................................................................................... 224
15 Glossary 225
16 Field settings table 227

1 | General safety precautions
Installer reference guide
6
ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
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 in the installer reference guide MUST be performed by an authorised
installer.
1.1.1 Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of extreme hot or cold
temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate injury.
NOTICE
Indicates a situation that could result in equipment or property damage.
INFORMATION
Indicates useful tips or additional information.
Symbols used on the unit:

1 | General safety precautions
Installer reference guide
7
ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
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 For the installer
1.2.1 General
If you are NOT sure how to install or operate the unit, contact your dealer.
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
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).
CAUTION
Wear adequate personal protective equipment (protective gloves, safety glasses,…)
when installing, maintaining or servicing the system.
WARNING
Tear apart and throw away plastic packaging bags so that nobody, especially
children, can play with them. Possible risk: suffocation.

1 | General safety precautions
Installer reference guide
8
ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
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.
CAUTION
▪Do NOT place any objects or equipment on top of the unit.
▪Do NOT sit, climb or stand on the unit.
NOTICE
Works executed on the outdoor unit are best done under dry weather conditions to
avoid water ingress.
In accordance with the applicable legislation, it might be necessary to provide a
logbook with the product containing at least: information on maintenance, repair
work, results of tests, stand-by periods,…
Also, at least, following information MUST be provided at an accessible place at the
product:
▪Instructions for shutting down the system in case of an emergency
▪Name and address of fire department, police and hospital
▪Name, address and day and night telephone numbers for obtaining service
In Europe, EN378 provides the necessary guidance for this logbook.
1.2.2 Installation site
▪Provide sufficient space around the unit for servicing and air circulation.
▪Make sure the installation site withstands the 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.
1.2.3 Refrigerant
If applicable. See the installation manual or installer reference guide of your
application for more information.

1 | General safety precautions
Installer reference guide
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ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
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.
▪In case of R410A or R32 refrigerant: Toxic gas might be produced if refrigerant
gas comes into contact with fire.
▪In case of CO2 refrigerant: Refrigerant gas is toxic in high concentrations.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump down the system, and there
is a leak in the refrigerant circuit:
▪Do NOT use the unit's automatic pump down function, with which you can collect
all refrigerant from the system into the outdoor unit. Possible consequence: Self-
combustion and explosion of the compressor because of air going into the
operating compressor.
▪Use a separate recovery system so that the unit's compressor does NOT have to
operate.
WARNING
ALWAYS recover the refrigerant. Do NOT release them directly into the environment.
Use a vacuum pump to evacuate the installation.
NOTICE
After all the piping has been connected, make sure there is no gas leak. Use nitrogen
to perform a gas leak detection.
NOTICE
▪To avoid compressor breakdown, do NOT charge more than the specified amount
of refrigerant.
▪When the refrigerant system is to be opened, refrigerant MUST be treated
according to the applicable legislation.
WARNING
Make sure there is no oxygen in the system. Refrigerant may only be charged after
performing the leak test and the vacuum drying.
Possible consequence: Self-combustion and explosion of the compressor because of
oxygen going into the operating compressor.

1 | General safety precautions
Installer reference guide
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ERGA04~08DAV3(A) + EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618958-1 – 2020.03
▪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.
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.
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.