Daikin Altherma 3 R W How to use

Installer reference guide
Daikin Altherma 3 R W
ERGA04E▲V3▼
ERGA06E▲V3H▼
ERGA08E▲V3H▼
ERGA04E▲V3A▼
ERGA06E▲V3A▼
ERGA08E▲V3A▼
EHBH04E▲6V▼
EHBH08E▲6V▼
EHBH08E▲9W▼
EHBX04E▲6V▼
EHBX08E▲6V▼
EHBX08E▲9W▼
▲= A, B, C, …, Z
▼= , , 1, 2, 3, …, 9
https://daikintechnicaldatahub.eu

Table of contents
Installer reference guide
2
ERGA04~08E + EHBH/X04+08E
Daikin Altherma 3 R W
4P629085-1C – 2022.05
Table of contents
1 About this document 6
1.1 Meaning of warnings and symbols................................................................................................................................. 7
1.2 Installer reference guide at a glance .............................................................................................................................. 8
2 General safety precautions 10
2.1 For the installer............................................................................................................................................................... 10
2.1.1 General ........................................................................................................................................................... 10
2.1.2 Installation site ............................................................................................................................................... 11
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 11
2.1.4 Water .............................................................................................................................................................. 13
2.1.5 Electrical ......................................................................................................................................................... 13
3 Specific installer safety instructions 16
4 About the box 22
4.1 Outdoor unit ................................................................................................................................................................... 22
4.1.1 To unpack the outdoor unit ........................................................................................................................... 22
4.1.2 To handle the outdoor unit............................................................................................................................ 22
4.1.3 To remove the accessories from the outdoor unit........................................................................................ 23
4.2 Indoor unit ...................................................................................................................................................................... 24
4.2.1 To unpack the indoor unit.............................................................................................................................. 24
4.2.2 To remove the accessories from the indoor unit .......................................................................................... 24
5 About the units and options 25
5.1 Identification ................................................................................................................................................................... 25
5.1.1 Identification label: Outdoor unit .................................................................................................................. 25
5.1.2 Identification label: Indoor unit ..................................................................................................................... 26
5.2 Combining units and options.......................................................................................................................................... 26
5.2.1 Possible options for the outdoor unit............................................................................................................ 26
5.2.2 Possible options for the indoor unit............................................................................................................... 27
5.2.3 Possible combinations of indoor unit and outdoor unit................................................................................ 30
5.2.4 Possible combinations of indoor unit and domestic hot water tank ............................................................ 30
6 Application guidelines 31
6.1 Overview: Application guidelines ................................................................................................................................... 31
6.2 Setting up the space heating/cooling system ................................................................................................................ 32
6.2.1 Single room..................................................................................................................................................... 33
6.2.2 Multiple rooms – OneLWT zone ................................................................................................................... 37
6.2.3 Multiple rooms – Two LWT zones.................................................................................................................. 42
6.3 Setting up an auxiliary heat source for space heating ................................................................................................... 47
6.4 Setting up the domestic hot water tank......................................................................................................................... 49
6.4.1 System layout – Standalone DHW tank ......................................................................................................... 49
6.4.2 Selecting the volume and desired temperature for the DHW tank .............................................................. 49
6.4.3 Setup and configuration – DHW tank ............................................................................................................ 51
6.4.4 DHW pump for instant hot water .................................................................................................................. 52
6.4.5 DHW pump for disinfection ........................................................................................................................... 52
6.4.6 DHW pump for tank preheating..................................................................................................................... 53
6.5 Setting up the energy metering...................................................................................................................................... 54
6.5.1 Produced heat ................................................................................................................................................ 55
6.5.2 Consumed energy........................................................................................................................................... 55
6.5.3 Normal kWh rate power supply ..................................................................................................................... 56
6.5.4 Preferential kWh rate power supply.............................................................................................................. 57
6.6 Setting up the power consumption control ................................................................................................................... 58
6.6.1 Permanent power limitation.......................................................................................................................... 58
6.6.2 Power limitation activated by digital inputs .................................................................................................. 59
6.6.3 Power limitation process................................................................................................................................ 60
6.6.4 BBR16 power limitation.................................................................................................................................. 61
6.7 Setting up an external temperature sensor ................................................................................................................... 62
7 Unit installation 64
7.1 Preparing the installation site......................................................................................................................................... 64
7.1.1 Installation site requirements of the outdoor unit........................................................................................ 64
7.1.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 67
7.1.3 Installation site requirements of the indoor unit .......................................................................................... 68
7.1.4 Special requirements for R32 units................................................................................................................ 69
7.1.5 Installation patterns ....................................................................................................................................... 69

Table of contents
Installer reference guide
3
ERGA04~08E + EHBH/X04+08E
Daikin Altherma 3 R W
4P629085-1C – 2022.05
7.2 Opening and closing the units ........................................................................................................................................ 73
7.2.1 About opening the units................................................................................................................................. 73
7.2.2 To open the outdoor unit............................................................................................................................... 73
7.2.3 To close the outdoor unit............................................................................................................................... 74
7.2.4 To open the indoor unit ................................................................................................................................. 74
7.2.5 To close the indoor unit ................................................................................................................................. 76
7.3 Mounting the outdoor unit............................................................................................................................................. 76
7.3.1 About mounting the outdoor unit ................................................................................................................. 76
7.3.2 Precautions when mounting the outdoor unit.............................................................................................. 76
7.3.3 To provide the installation structure ............................................................................................................. 77
7.3.4 To install the outdoor unit ............................................................................................................................. 79
7.3.5 To provide drainage........................................................................................................................................ 80
7.3.6 To prevent the outdoor unit from falling over .............................................................................................. 82
7.4 Mounting the indoor unit ............................................................................................................................................... 83
7.4.1 About mounting the indoor unit.................................................................................................................... 83
7.4.2 Precautions when mounting the indoor unit................................................................................................. 83
7.4.3 To install the indoor unit ................................................................................................................................ 83
7.4.4 To connect the drain hose to the drain ......................................................................................................... 84
8 Piping installation 86
8.1 Preparing refrigerant piping ........................................................................................................................................... 86
8.1.1 Refrigerant piping requirements.................................................................................................................... 86
8.1.2 Refrigerant piping insulation.......................................................................................................................... 87
8.2 Connecting the refrigerant piping .................................................................................................................................. 87
8.2.1 About connecting the refrigerant piping ....................................................................................................... 87
8.2.2 Precautions when connecting the refrigerant piping.................................................................................... 88
8.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 89
8.2.4 Pipe bending guidelines ................................................................................................................................. 89
8.2.5 To flare the pipe end ...................................................................................................................................... 89
8.2.6 To braze the pipe end..................................................................................................................................... 90
8.2.7 Using the stop valve and service port............................................................................................................ 91
8.2.8 To connect the refrigerant piping to the outdoor unit ................................................................................. 92
8.2.9 To connect the refrigerant piping to the indoor unit .................................................................................... 93
8.3 Checking the refrigerant piping...................................................................................................................................... 93
8.3.1 About checking the refrigerant piping........................................................................................................... 93
8.3.2 Precautions when checking the refrigerant piping........................................................................................ 94
8.3.3 To check for leaks ........................................................................................................................................... 94
8.3.4 To perform vacuum drying............................................................................................................................. 95
8.3.5 To insulate the refrigerant piping .................................................................................................................. 96
8.4 Charging refrigerant........................................................................................................................................................ 96
8.4.1 About charging refrigerant............................................................................................................................. 96
8.4.2 Precautions when charging refrigerant ......................................................................................................... 97
8.4.3 To determine the additional refrigerant amount.......................................................................................... 97
8.4.4 To determine the complete recharge amount.............................................................................................. 98
8.4.5 To charge additional refrigerant .................................................................................................................... 98
8.4.6 To fix the fluorinated greenhouse gases label............................................................................................... 98
8.5 Preparing water piping ................................................................................................................................................... 99
8.5.1 Water circuit requirements............................................................................................................................ 99
8.5.2 Formula to calculate the expansion vessel pre-pressure.............................................................................. 102
8.5.3 To check the water volume and flow rate ..................................................................................................... 102
8.5.4 Changing the pre-pressure of the expansion vessel...................................................................................... 104
8.5.5 To check the water volume: Examples .......................................................................................................... 104
8.6 Connecting water piping................................................................................................................................................. 105
8.6.1 About connecting the water piping ............................................................................................................... 105
8.6.2 Precautions when connecting the water piping............................................................................................ 105
8.6.3 To connect the water piping .......................................................................................................................... 105
8.6.4 To fill the water circuit ................................................................................................................................... 107
8.6.5 To fill the domestic hot water tank................................................................................................................ 107
8.6.6 To insulate the water piping .......................................................................................................................... 107
9 Electrical installation 108
9.1 About connecting the electrical wiring .......................................................................................................................... 108
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 108
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 109
9.1.3 Specifications of standard wiring components.............................................................................................. 110
9.1.4 About electrical compliance........................................................................................................................... 111
9.1.5 About preferential kWh rate power supply................................................................................................... 111
9.1.6 Overview of electrical connections except external actuators ..................................................................... 112
9.2 Connections to the outdoor unit.................................................................................................................................... 112
9.2.1 To connect the electrical wiring to the outdoor unit .................................................................................... 112

Table of contents
Installer reference guide
4
ERGA04~08E + EHBH/X04+08E
Daikin Altherma 3 R W
4P629085-1C – 2022.05
9.3 Connections to the indoor unit ...................................................................................................................................... 114
9.3.1 To connect the main power supply................................................................................................................ 118
9.3.2 To connect the backup heater power supply ................................................................................................ 120
9.3.3 To connect the shut-off valve ........................................................................................................................ 123
9.3.4 To connect the electricity meters .................................................................................................................. 124
9.3.5 To connect the domestic hot water pump .................................................................................................... 125
9.3.6 To connect the alarm output ......................................................................................................................... 126
9.3.7 To connect the space cooling/heating ON/OFF output................................................................................. 127
9.3.8 To connect the changeover to external heat source..................................................................................... 128
9.3.9 To connect the power consumption digital inputs........................................................................................ 129
9.3.10 To connect the safety thermostat (normally closed contact) ....................................................................... 130
9.3.11 To connect a Smart Grid................................................................................................................................. 131
9.3.12 To connect the WLAN cartridge (delivered as accessory) ............................................................................. 135
10 Configuration 136
10.1 Overview: Configuration................................................................................................................................................. 136
10.1.1 To access the most used commands ............................................................................................................. 137
10.1.2 To connect the PC cable to the switch box.................................................................................................... 139
10.2 Configuration wizard....................................................................................................................................................... 140
10.3 Possible screens.............................................................................................................................................................. 141
10.3.1 Possible screens: Overview ............................................................................................................................ 141
10.3.2 Home screen................................................................................................................................................... 142
10.3.3 Main menu screen.......................................................................................................................................... 144
10.3.4 Menu screen................................................................................................................................................... 145
10.3.5 Setpoint screen............................................................................................................................................... 145
10.3.6 Detailed screen with values ........................................................................................................................... 146
10.4 Preset values and schedules........................................................................................................................................... 147
10.4.1 Using preset values......................................................................................................................................... 147
10.4.2 Using and programming schedules................................................................................................................ 147
10.4.3 Schedule screen: Example.............................................................................................................................. 151
10.4.4 Setting the energy prices................................................................................................................................ 155
10.5 Weather-dependent curve............................................................................................................................................. 157
10.5.1 What is a weather-dependent curve? ........................................................................................................... 157
10.5.2 2-points curve................................................................................................................................................. 157
10.5.3 Slope-offset curve........................................................................................................................................... 158
10.5.4 Using weather-dependent curves.................................................................................................................. 160
10.6 Settings menu ................................................................................................................................................................. 162
10.6.1 Malfunctioning ............................................................................................................................................... 162
10.6.2 Room............................................................................................................................................................... 162
10.6.3 Main zone ....................................................................................................................................................... 166
10.6.4 Additional zone............................................................................................................................................... 177
10.6.5 Space heating/cooling .................................................................................................................................... 181
10.6.6 Tank................................................................................................................................................................. 190
10.6.7 User settings ................................................................................................................................................... 199
10.6.8 Information..................................................................................................................................................... 204
10.6.9 Installer settings ............................................................................................................................................. 205
10.6.10 Commissioning ............................................................................................................................................... 229
10.6.11 User profile ..................................................................................................................................................... 229
10.6.12 Operation........................................................................................................................................................ 229
10.6.13 WLAN .............................................................................................................................................................. 230
10.7 Menu structure: Overview user settings........................................................................................................................ 233
10.8 Menu structure: Overview installer settings.................................................................................................................. 234
11 Commissioning 236
11.1 Overview: Commissioning .............................................................................................................................................. 236
11.2 Precautions when commissioning.................................................................................................................................. 237
11.3 Checklist before commissioning..................................................................................................................................... 237
11.4 Checklist during commissioning ..................................................................................................................................... 238
11.4.1 Minimum flow rate......................................................................................................................................... 238
11.4.2 Air purge function........................................................................................................................................... 239
11.4.3 Operation test run .......................................................................................................................................... 240
11.4.4 Actuator test run ............................................................................................................................................ 241
11.4.5 Underfloor heating screed dryout ................................................................................................................. 242
12 Hand-over to the user 246
13 Maintenance and service 247
13.1 Maintenance safety precautions.................................................................................................................................... 247
13.2 Yearly maintenance ........................................................................................................................................................ 248
13.2.1 Yearly maintenance outdoor unit: overview ................................................................................................. 248
13.2.2 Yearly maintenance outdoor unit: instructions ............................................................................................. 248

Table of contents
Installer reference guide
5
ERGA04~08E + EHBH/X04+08E
Daikin Altherma 3 R W
4P629085-1C – 2022.05
13.2.3 Yearly maintenance indoor unit: overview .................................................................................................... 248
13.2.4 Yearly maintenance indoor unit: instructions ............................................................................................... 248
13.3 About cleaning the water filter in case of trouble ......................................................................................................... 250
13.3.1 To remove the water filter ............................................................................................................................. 250
13.3.2 To clean the water filter in case of trouble.................................................................................................... 251
13.3.3 To install the water filter ................................................................................................................................ 252
14 Troubleshooting 254
14.1 Overview: Troubleshooting ............................................................................................................................................ 254
14.2 Precautions when troubleshooting ................................................................................................................................ 254
14.3 Solving problems based on symptoms........................................................................................................................... 255
14.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 255
14.3.2 Symptom: Hot water does NOT reach the desired temperature.................................................................. 256
14.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 256
14.3.4 Symptom: The system is making gurgling noises after commissioning ........................................................ 256
14.3.5 Symptom: The pump is making noise (cavitation)......................................................................................... 257
14.3.6 Symptom: The pressure relief valve opens.................................................................................................... 258
14.3.7 Symptom: The water pressure relief valve leaks ........................................................................................... 258
14.3.8 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 259
14.3.9 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 260
14.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 260
14.4 Solving problems based on error codes......................................................................................................................... 260
14.4.1 To display the help text in case of a malfunction .......................................................................................... 261
14.4.2 Error codes: Overview .................................................................................................................................... 261
15 Disposal 266
15.1 Overview: Disposal.......................................................................................................................................................... 266
15.2 To pump down................................................................................................................................................................ 266
16 Technical data 268
16.1 Piping diagram: Outdoor unit......................................................................................................................................... 269
16.2 Piping diagram: Indoor unit............................................................................................................................................ 270
16.3 Wiring diagram: Outdoor unit ........................................................................................................................................ 271
16.4 Wiring diagram: Indoor unit ........................................................................................................................................... 273
16.5 Table 1 – Maximum refrigerant charge allowed in a room: indoor unit....................................................................... 279
16.6 Table 2 – Minimum floor area: indoor unit.................................................................................................................... 279
16.7 Table 3 – Minimum bottom opening area for natural ventilation: indoor unit ............................................................ 280
16.8 ESP curve: Indoor unit..................................................................................................................................................... 281
17 Glossary 282
18 Field settings table 283