LG LM-2421C2L/A2L, Service Manual

Page: 24 / 56

- 24 -
Terminal on the OUTDOOR UNIT
Terminal on the INDOOR UNIT Terminal on the INDOOR UNIT Terminal on the INDOOR UNIT
A-UNIT B-UNIT C-UNIT
Power Cord
1(L) 1(L) 2(N) 2(N)
1(L) 2(N)
3 3 2(N) 3
3 1(L) 2(N) 3 1(L) 2(N) 3
2(N) 1(L)
1(L) 2(N)
1(L) 2(N)
3
3 1(L) 2(N) 3
1(L)
Terminal on the OUTDOOR UNIT
Terminal on the INDOOR UNIT Terminal on the INDOOR UNIT
B-UNIT A-UNIT
Power Cord
2(N) 2(N) 3 1(L)
Over 5mm
Terminal block
Holder for
power supply
cord
Cover control
Connecting cable
Power cord
2) Connection of the cable
1. Remove the cover control from the unit by loosening
the screw.
Connect the wires to the terminals on the control board
individually as the following.
• LM-2421C2L
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 ade-
quately 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
2.5mm
2
• LM-3022C3L
If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below.
Air
Conditioner
Main power source
Circuit Breaker
Use a 25A circuit
breaker or time
delay fuse.
CAUTION