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EPRA14~18D + ETBH/X16E
Daikin Altherma 3 H HT W
4P644736-1D - 2023.10
7.2.2
To open the outdoor unit............................................................................................................................... 70
7.2.3
To remove the transportation stay ................................................................................................................ 71
7.2.4
To attach the compressor cover piece .......................................................................................................... 72
7.2.5
To close the outdoor unit............................................................................................................................... 73
7.2.6
To open the indoor unit ................................................................................................................................. 73
7.2.7
To close the indoor unit ................................................................................................................................. 75
7.3
Mounting the outdoor unit............................................................................................................................................. 75
7.3.1
About mounting the outdoor unit ................................................................................................................. 75
7.3.2
Precautions when mounting the outdoor unit .............................................................................................. 76
7.3.3
To provide the installation structure ............................................................................................................. 76
7.3.4
To install the outdoor unit ............................................................................................................................. 77
7.3.5
To provide drainage........................................................................................................................................ 78
7.3.6
To install the discharge grille.......................................................................................................................... 79
7.3.7
To remove the discharge grille, and put the grille in safety position............................................................ 81
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
8.1
Preparing water piping ................................................................................................................................................... 86
8.1.1
Water circuit requirements............................................................................................................................ 86
8.1.2
Formula to calculate the expansion vessel pre-pressure .............................................................................. 89
8.1.3
To check the water volume and flow rate ..................................................................................................... 89
8.1.4
Changing the pre-pressure of the expansion vessel...................................................................................... 91
8.1.5
To check the water volume: Examples .......................................................................................................... 91
8.2
Connecting water piping................................................................................................................................................. 92
8.2.1
About connecting the water piping ............................................................................................................... 92
8.2.2
Precautions when connecting the water piping............................................................................................ 92
8.2.3
To connect the water piping .......................................................................................................................... 92
8.2.4
To fill the water circuit ................................................................................................................................... 95
8.2.5
To protect the water circuit against freezing ................................................................................................ 95
8.2.6
To fill the domestic hot water tank................................................................................................................ 99
8.2.7
To insulate the water piping .......................................................................................................................... 99
9.1
About connecting the electrical wiring .......................................................................................................................... 101
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 101
9.1.2
Guidelines when connecting the electrical wiring......................................................................................... 102
9.1.3
About electrical compliance........................................................................................................................... 104
9.1.4
About preferential kWh rate power supply................................................................................................... 104
9.1.5
Overview of electrical connections except external actuators ..................................................................... 105
9.2
Connections to the outdoor unit.................................................................................................................................... 106
9.2.1
Specifications of standard wiring components.............................................................................................. 106
9.2.2
To connect the electrical wiring to the outdoor unit .................................................................................... 106
9.2.3
To reposition the air thermistor on the outdoor unit ................................................................................... 113
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 ........................................................................................................................ 122
9.3.4
To connect the electricity meters .................................................................................................................. 123
9.3.5
To connect the domestic hot water pump .................................................................................................... 124
9.3.6
To connect the alarm output ......................................................................................................................... 125
9.3.7
To connect the space cooling/heating ON/OFF output................................................................................. 126
9.3.8
To connect the changeover to external heat source..................................................................................... 127
9.3.9
To connect the power consumption digital inputs........................................................................................ 128
9.3.10
To connect the safety thermostat (normally closed contact) ....................................................................... 129
9.3.11
To connect a Smart Grid................................................................................................................................. 130
9.3.12
To connect the WLAN cartridge (delivered as accessory)............................................................................. 134
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....................................................................................................................................................... 139
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
Table of contents
86
101
136
Installer reference guide
3
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