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WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provides full
disconnection under overvoltage category III.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
14.1
Specifications of standard wiring
components
NOTICE
We recommend using solid (single-core) wires. If stranded
wires are used, slightly twist the strands to consolidate the
end of the conductor for either direct use in the terminal
clamp or insertion in a round crimp-style terminal. Details
are described in "Guidelines when connecting the electrical
wiring" in the installer reference guide.
Power supply
Voltage
Frequency
Phase
Current
Components
Power supply cable
MUST comply with national wiring
Wire size based on the current, but not
Transmission wiring
Only use harmonised wire providing
double insulation and suitable for
User interface cable
Only use harmonised wire providing
double insulation and suitable for
Recommended circuit
breaker
Residual current device
MUST comply with national wiring
FXHA-A
VRV system air conditioner
3P668115-5E – 2022.11
220~240 V/220 V
50/60 Hz
1~
FXHA32: 0.5 A
FXHA50: 0.6 A
FXHA63: 0.7 A
FXHA100: 1.3 A
regulation.
3-core cable
2
less than 1.5 mm
applicable voltage
2-core cable
2
Minimum size 0.75 mm
applicable voltage
2-core cable
2
Minimum size 0.75 mm
Maximum length 500 m
6 A
regulation
14 Electrical installation
14.2
To connect the electrical wiring to
the indoor unit
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:
"To mount the indoor
location depends on the power supply wiring route. For
transmission and user interface cable, choosing the same route
as the refrigerant piping is recommended.
a
b c
d
c
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).
4 User interface cable: Route the cable through the large cut out
hole and connect it to the terminal block (symbols P1, P2).
5 Transmission cable: Route the cable through the large cut out
hole and connect it to the terminal block (make sure the
symbols F1, F2 match with the symbols on the outdoor unit).
Bundle the transmission cable with the user interface cable and
fix them with a tie wrap on the wiring fixture.
6 Power supply cable: Route the cable through the small cut out
hole and connect it to the terminal block (L, N, earth). Fix the
cable with a tie wrap on the wiring fixture.
a
Circuit breaker
b
Residual current device
unit" [ 4 17]. The
a
b
Installation and operation manual
21
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