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18
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Electrical installation
18.1.3 Specifications of standard wiring components
18.2 To connect the electrical wiring to the indoor unit
Installer and user reference guide
70
Component
Interconnection cable
(indoor↔outdoor)
User interface cable
NOTICE
▪
Follow the wiring diagram (delivered with the unit, located at the inside of the
service cover).
▪
For instructions on how to connect the optional equipment, see the installation
manual delivered with the optional equipment.
▪
Make sure the electrical wiring does NOT obstruct proper reattachment of the
service cover.
It is important to keep the power supply and the transmission wiring separated
from each other. In order to avoid any electrical interference the distance between
both wirings should ALWAYS be at least 50 mm.
NOTICE
Be sure to keep the power line and transmission line apart from each other.
Transmission wiring and power supply wiring may cross, but may NOT run parallel.
1 Remove the service cover.
2 Open the knockout hole and install the resin bushing (accessory). Refer to:
mount the indoor
a
b c
d
a Power supply wiring
b Resin bushing (accessory)
c Sealing material for gaps around pipes and cables (accessory)
d User interface cable and transmission cable
3 Install the 2 wiring fixtures with screws for wiring fixture (accessory).
Only use harmonized wire providing double insulation
and suitable for applicable voltage
Minimum size 2.5 mm²
Only use harmonized wire providing double insulation
and suitable for applicable voltage
Minimum size 0.75 mm²
Maximum length 500 m
4
unit" [
54].
c
Specification
4-core cable
2-core cable
Split system air conditioner
4P708119-1 – 2022.11
"To
FHA-A(9)
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