9 | Electrical installation
Installer reference guide
45
EKHWET90~120BAV3
R32 Split series – Domestic hot water tank
4P680077-1 – 2021.11
9 Electrical installation
In this chapter
9.1 About connecting the electrical wiring .................................................................................................................................. 45
9.1.1 Precautions when connecting the electrical wiring .............................................................................................. 45
9.1.2 Guidelines when connecting the electrical wiring ................................................................................................ 46
9.1.3 About electrical compliance .................................................................................................................................. 47
9.2 Connections to the indoor unit .............................................................................................................................................. 47
9.2.1 To connect the main power supply ....................................................................................................................... 47
9.2.2 To connect the booster heater power supply....................................................................................................... 48
9.2.3 To connect the WLAN cartridge (delivered as accessory)..................................................................................... 50
9.1 About connecting the electrical wiring
Typical workflow
Connecting the electrical wiring typically consists of the following stages:
▪ "9.2Connections to the indoor unit"[447]
9.1.1 Precautions when connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
▪ All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
INFORMATION
Also read the precautions and requirements in the "2 General safety
precautions"[49].