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Installation
Installer reference guide
39
FNA25~60A2VEB(9)
Split system air conditioners
4P550955-3C – 2020.12
6.4.3 Guidelines when connecting the electrical wiring
Keep the following in mind:
▪
If stranded conductor wires are used, install a round crimp-style terminal on the
end of the wire. Place the round crimp-style terminal on the wire up to the
covered part and fasten the terminal with the appropriate tool.
b
a
a
Stranded conductor wire
b
Round crimp-style terminal
▪
Use the following methods for installing wires:
Wire type
Installation method
Single-core wire
c b
c
a
a
A
AA´
A´
a
Curled single-core 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)
Interconnection cable
(indoor↔outdoor)
M4
1.08~1.32
User interface cable
M3.5
0.79~0.97
▪
The earth wire between the wire retainer and the terminal must be longer than
the other wires.
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