Daikin VRV IV Series - Electrical installation; About connecting the electrical wiring

17 | Electrical installation
Installer and user reference guide
88
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
17 Electrical installation
In this chapter
17.1 About connecting the electrical wiring .................................................................................................................................. 88
17.1.1 Precautions when connecting the electrical wiring .............................................................................................. 88
17.1.2 Field wiring: Overview............................................................................................................................................ 90
17.1.3 Guidelines when knocking out knockout holes..................................................................................................... 92
17.1.4 About electrical compliance .................................................................................................................................. 92
17.1.5 Safety device requirements ................................................................................................................................... 92
17.2 To connect the electrical wiring on the compressor unit...................................................................................................... 93
17.3 To connect the electrical wiring on the heat exchanger unit................................................................................................ 96
17.4 To close the compressor unit ................................................................................................................................................. 97
17.5 To close the heat exchanger unit ........................................................................................................................................... 97
17.6 To check the insulation resistance of the compressor .......................................................................................................... 98
17.1 About connecting the electrical wiring
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 units.
2 Connecting the electrical wiring to the compressor unit.
3 Connecting the electrical wiring to the heat exchanger unit.
4 Connecting the electrical wiring to the indoor units.
5 Connecting the main power supply.
17.1.1 Precautions when connecting the electrical wiring
INFORMATION
Also read the precautions and requirements in the following chapters:
▪ General safety precautions
▪ Preparation
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.