18
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Electrical installation
Installer and user reference guide
68
FXHA32~100AVEB
VRV system air conditioner
4P673749-1 – 2022.01
Wire type
Installation method
Stranded conductor wire
with round crimp-style
terminal
c b
b
a
c
a
B
B
a
Terminal
b
Screw
c
Flat washer
Allowed
NOT allowed
Tightening torques
Wiring
Screw size
Tightening torque
(N•m)
Power supply cable
M4
1.3~1.6
Earth terminal cable
M4
1.44~1.94
Transmission cable
(indoor↔outdoor)
M3.5
0.79~0.97
User interface cable
▪
The earth wire between the wire retainer and the terminal must be longer than
the other wires.
18.1.3 Specifications of standard wiring components
Component
Class
32
50
63
100
Power supply
cable
MCA
(a)
0.5 A
0.6 A
0.7 A
1.3 A
Voltage
220~240 V/220 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
1.5 mm
2
(3‑core wire)
H07RN-F (60245 IEC 66)
Transmission wiring
For specifications, refer to the installation manual
of the outdoor unit
User interface cable
0.75 to 1.25 mm
2
(2‑core wire)
H05RN-F (60245 IEC 57)
Length ≤500 m
Recommended circuit breaker
6 A
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).
