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9 Electrical installation
In this chapter
9.1 About connecting the electrical wiring
9.1.1 Precautions when connecting the electrical wiring
ERLA11~16D + EBSH/X(B)11+16P30+50D
Daikin Altherma 3 R ECH₂O
4P663482-1C - 2023.05
9.1
About connecting the electrical wiring .................................................................................................................................. 121
9.1.1
Precautions when connecting the electrical wiring .............................................................................................. 121
9.1.2
Guidelines when connecting the electrical wiring ................................................................................................ 122
9.1.3
About electrical compliance .................................................................................................................................. 124
9.1.4
About preferential kWh rate power supply........................................................................................................... 124
9.1.5
Overview of electrical connections except external actuators............................................................................. 124
9.2
Connections to the outdoor unit............................................................................................................................................ 125
9.2.1
Specifications of standard wiring components ..................................................................................................... 126
9.2.2
To connect the electrical wiring to the outdoor unit ............................................................................................ 126
9.3
Connections to the indoor unit .............................................................................................................................................. 129
9.3.1
To connect the electrical wiring to the indoor unit............................................................................................... 131
9.3.2
To connect the main power supply ....................................................................................................................... 133
9.3.3
To connect the backup heater power supply........................................................................................................ 135
9.3.4
To connect the backup heater to the main unit.................................................................................................... 138
9.3.5
To connect the shut-off valve ................................................................................................................................ 139
9.3.6
To connect the electricity meters.......................................................................................................................... 140
9.3.7
To connect the domestic hot water pump............................................................................................................ 141
9.3.8
To connect the alarm output ................................................................................................................................. 142
9.3.9
To connect the space cooling/heating ON/OFF output ........................................................................................ 143
9.3.10
To connect the changeover to external heat source ............................................................................................ 144
9.3.11
To connect the power consumption digital inputs ............................................................................................... 145
9.3.12
To connect the safety thermostat (normally closed contact)............................................................................... 147
9.3.13
To connect a Smart Grid ........................................................................................................................................ 148
9.3.14
To connect the WLAN cartridge............................................................................................................................. 153
9.3.15
To connect the solar input ..................................................................................................................................... 154
9.3.16
To connect the DHW output.................................................................................................................................. 154
Before connecting the electrical wiring
Make sure:
▪
The refrigerant piping is connected and checked
▪
The water piping is connected
Typical workflow
Connecting the electrical wiring typically consists of the following stages:
▪
"9.2 Connections to the outdoor
▪
"9.3 Connections to the indoor
DANGER: RISK OF ELECTROCUTION
WARNING
▪
All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable national wiring regulation.
▪
Make electrical connections to the fixed wiring.
▪
All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
9
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Electrical installation
Installer reference guide
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