LG A2UN186FA0, Service Manual

Page: 63 / 132

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3) Electrical Wiring
Power cord
Terminal on the OUTDOOR UNIT
3 1(L) 2(N)
OUTDOOR UNIT
1(L) 2(N)
Terminal on the INDOOR UNIT
D-UNIT
1(L) 2(N) 3
Terminal on the INDOOR UNIT
C-UNIT
1(L) 2(N) 3
Terminal on the INDOOR UNIT
B-UNIT
1(L) 2(N) 3
Terminal on the INDOOR UNIT
A-UNIT
1(L) 2(N) 3
3 2(N) 3 3 1(L)
Power cord
Terminal on the OUTDOOR UNIT
3 1(L) 2(N)
OUTDOOR UNIT
1(L) 2(N)
Terminal on the INDOOR UNIT
A-UNIT
1(L) 2(N) 3
Terminal on the INDOOR UNIT
B-UNIT
1(L) 2(N) 3
Terminal on the INDOOR UNIT
C-UNIT
1(L) 2(N) 3
3 2(N) 3 3 1(L)
Power cord
Terminal on the OUTDOOR UNIT
3 1(L) 2(N)
OUTDOOR UNIT
1(L) 2(N)
Terminal on the INDOOR UNIT
A-UNIT
1(L) 2(N) 3
Terminal on the INDOOR UNIT
B-UNIT
1(L) 2(N) 3
3 2(N) 3 3 1(L)
Power cord
Connecting
cable
Cover control
Terminal block
Outdoor unit
Over 5mm
Holder for
power supply
cord
1. Remove the cover control from the unit by loosen-
ing the screw.
Connect the wires to the terminals on the control
board individually as the following.
2. Secure the cable onto the control board with the
holder (clamper).
3. Refix the cover control to the original position with
the screw.
4. Use a recongnized circuit breaker between the
power source and the unit. A disconnection device
to adequately disconnect all supply lines must be
fitted.
CAUTION
ø
8.5mm
GN/YL
20mm
ø
7.5mm
GN/YL
20mm
The power cord connected to the outdoor unit
should be complied with the following specifica-
tions (Rubber insulation, type H05RN-F
approved by HAR or SAA). The connecting cable connected to the indoor
and outdoor unit should be complied with the
following specifications (Rubber insulation, type
H07RN-F approved by HAR or SAA).
NORMAL CROSS-
SECTIONAL AREA
0.75mm
2
NORMAL CROSS-
SECTIONAL AREA
3.5mm
2
Air
Conditioner
Air
Conditioner
Circuit Breaker
Use a 20A circuit
breaker or time
delay fuse.
(21K)
Main power source Main power source
Circuit Breaker
Use a 25A circuit
breaker or time
delay fuse.
(30K)
CAUTION
If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below.