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Electrical installation
Installer reference guide
96
ERGA04~08EAV3(A) + EHBH/X04+08EA/EJ6V+9W
Daikin Altherma 3 R W
4P629085-1 – 2020.08
9 Electrical installation
In this chapter
Connections to the indoor unit .............................................................................................................................................. 102
9.3.1
9.1 About connecting the electrical wiring
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:
1
Making sure the power supply system complies with the electrical
specifications of the heat pump.
2
Connecting the electrical wiring to the outdoor unit.
3
Connecting the electrical wiring to the indoor unit.
4
Connecting the main power supply.
5
Connecting the backup heater power supply.
6
Connecting the shut-off valves.
7
Connecting the electrical meters.
8
Connecting the domestic hot water pump.
9
Connecting the alarm output.
10
Connecting the space cooling/heating ON/OFF output.
11
Connecting the changeover to an external heat source.
12
Connecting the power consumption digital inputs.
13
Connecting the safety thermostat.