Daikin VRV 5-S - 20 Electrical Installation; About Connecting the Electrical Wiring; Precautions When Connecting the Electrical Wiring

20 | Electrical installation
Installer and user reference guide
116
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
20 Electrical installation
CAUTION
See "3 Specific installer safety instructions" [4 14] to make sure this installation
complies with all safety regulations.
In this chapter
20.1 About connecting the electrical wiring .................................................................................................................................. 116
20.1.1 Precautions when connecting the electrical wiring .............................................................................................. 116
20.1.2 About the electrical wiring..................................................................................................................................... 118
20.1.3 Guidelines for making knockout holes .................................................................................................................. 119
20.1.4 Guidelines when connecting the electrical wiring ................................................................................................ 120
20.1.5 About electrical compliance .................................................................................................................................. 122
20.1.6 Specifications of standard wiring components ..................................................................................................... 123
20.2 To connect the electrical wiring to the outdoor unit ............................................................................................................ 124
20.3 To connect the external outputs............................................................................................................................................ 126
20.4 To connect the cool/heat selector switch option.................................................................................................................. 127
20.5 To check the insulation resistance of the compressor .......................................................................................................... 128
20.1 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 outdoor unit.
3 Connecting the electrical wiring to the indoor unit.
4 Connecting the main power supply.
20.1.1 Precautions when connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
The appliance MUST be installed in accordance with national wiring regulations.
WARNING
▪ All wiring MUST be performed by an authorised electrician and MUST comply
with the 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.
WARNING
ALWAYS use multicore cable for power supply cables.