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Electrical installation
Installer and user reference guide
69
FXFA20~125A2VEB
VRV system air conditioner
4P599624-1A – 2020.06
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
O
Allowed
X
NOT allowed
Tightening torques
Wiring
Screw size
Tightening torque
(N•m)
Power supply cable
M4
1.2~1.4
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
20~40
50+63
80
100
125
Power supply
cable
MCA
(a)
0.3 A
0.4 A
0.6 A
0.8 A
1.3 A
Voltage
220~240 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
1.5 mm
2
(3‑core wire)
H07RN-F (60245 IEC 66)
Transmission wiring
0.75 to 1.25 mm
2
(2‑core wire)
H05RN-F (60245 IEC 57)
User interface - maximum 500 m
User interface cable
Recommended field fuse
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).
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