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Step 12 Connecting the power and
communication cables
CAUTION
• Always remember to connect the refrigerant pipes
before performing the electric connections.
When disconnecting the system, always disconnect
the electric cables before disconnecting the
refrigerant pipes.
CAUTION
• Always remember to connect the air conditioner to
the grounding system before performing the electric
connections. Use a crimp ring terminal at the end of
each wire.
The indoor unit is powered through the outdoor unit by
means of a H07 RN-F connection cable (or a more power
model), with insulation in synthetic rubber and a jacket
in polychloroprene (neoprene), in accordance with the
requirements specified in the standard EN 60335-2-40.
1 Remove the screw on the electrical component box
and remove the cover plate.
2 Route the connection cord through the side of the
indoor unit and connect the cable to the terminals
refer to the figure below.
3 Route the other end of the cable to the outdoor unit
through the ceiling & the hole on the wall.
4 Reassemble the electrical component box cover,
carefully tightening the screw.
1 phase
Indoor Unit
1(L)
2(N)
Outdoor
Unit
1(L) 2(N)
L
Indoor Power
Main power cable
F2
F1
N
Cable
Cable
Tie
clamp
Communication cable
3 phase
Indoor Unit
1(L)
2(N)
Outdoor
Unit
1(L) 2(N)
L1(R)
L2(S) L3(T)
Indoor
3 Phase 4 Wires power cable
Power
(AC 380V)
Indoor power supply
Power supply
Max/Min(V)
±10%
220 to 240V, 50 Hz
Communication cable
0.75 to 1.5 mm², 2 wires
AC power: M4 screw
13
11
Tightening torque (N·m)
M3.5
M4
•
1 N·m = 10 kgf·cm
• Power supply cords of parts of appliances for outdoor
use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC:60245 IEC 57 /
CENELEC: H05RN-F or IEC:60245 IEC 66 / CENELEC:
H07RN-F)
F2
F1
N
Cable
Cable
Tie
clamp
Communication
cable
Indoor power cable
1.5 mm², 3 wires
(Unit: mm)
Communication: M3.5 screw
7.5
9.0
0.8 to 1.2
1.2 to 1.8
English
15
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