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Electrical installation
Installer and user reference guide
70
FXHA-A
VRV system air conditioner
4P673749-1A – 2022.11
Use the following methods for installing wires:
Wire type
Installation method
Single-core wire
Or
Stranded conductor wire
twisted to "solid-like"
connection
c b
c
a
a
A
AA´
A´
a
Curled wire (single-core or twisted stranded
conductor wire)
b
Screw
c
Flat washer
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.
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