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14 Electrical installation
Component
User interface cable
Recommended field fuse
Residual current device
Must comply with applicable legislation
(a)
MCA=Minimum circuit ampacity. Stated values are maximum
values (see electrical data of indoor unit for exact values).
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 User interface cable: Route the cable through the opening for
cable, connect the cable to the terminal block (symbols P1, P2).
3 Transmission cable: Route the cable through the opening for
cable, connect the cable 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.
4 Power supply cable: Route the cable through the frame and
connect the cable 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
a
7
c
a
User interface cable and transmission cable
b
Power supply cable
c
Service cover with wiring diagram
Installation and operation manual
16
Class
200
250
2
0.75 to 1.25 mm
(2‑core wire)
H05RN-F (60245 IEC 57)
Length ≤500 m
6 A
a
b
70~90
b
10~15
L N
5 Plastic clamp for tie wrap (for transmission cable): Pass tie
wraps through the plastic clamps and fasten to fix the cables.
6 Cable clamp (for power supply cable): Fix the cable with the
cable clamp.
a
Plastic clamp for tie wrap
b
Opening for cables
c
Cable clamp
7 Wrap the sealing (field supply) around the cables to prevent
water from entering the unit. Seal all gaps to prevent small
animals from entering the system.
8 Reattach the service cover.
Complete system examples
▪ 1 user interface controls 1 indoor unit.
▪ Group control or 2 user interfaces control 1 indoor unit
▪ With BS unit
1 user interface controls 1 indoor unit.
a
TO IN/D
TO OUT/D
N
L
N
L
N L
N L
P
P
F
F
T
T
P
P
F
F
1
2
1
2
1
2
1
2
1
b
P
P
P
P
1
2
1
2
c
a
Outdoor unit
b
Indoor unit
c
User interface
d
Most downstream indoor unit
Group control or 2 user interfaces control 1 indoor unit
a
TO IN/D
TO OUT/D
N
L
N L
N L
P
P
F
F
T
T
P
P
F
F
1
2
1
2
1
2
1
2
1
b
P
P
1
2
c
a
Outdoor unit
b
Indoor unit
c
User interface
d
Most downstream indoor unit
With BS unit
a
b c
N
L
N
L
N L
N L
T
T
P
P
F
F
T
T
P
P
F
F
2
1
2
1
2
1
2
1
2
1
2
1
2
P
P
P
P
1
2
1
2
N L
N L
T
T
P
P
F
F
T
T
P
P
F
F
2
1
2
1
2
1
2
1
2
1
2
1
2
P
P
P
1
2
1
FXMQ-A
VRV system air conditioner
3P701545-1 – 2022.07
d
T
T
1
2
d
T
T
1
2
P
2
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