Heat Pump Model - LG ATNH126ELFB Service Manual

8.5 Wiring Connection
1. All wiring must comply with LOCAL REGULATIONS.
2. Select a power source that is capable of supplying the current as required by the air conditioner.
3. Feed the power source to the unit via a distribution switch board designed for this purpose.
4. The terminal screws inside the control box may be loose due to vibration during transport.
Check the screws for loose connection.
(Running the air conditioner with loose connection can overload and damage electrical components.)
5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION.
1Phase

Heat Pump Model.

3Phase
Heat Pump Model.
The power cord connected to the outdoor unit should be
complied with the following specifications (Rubber
insulation, type H05RN-F approved by HAR or SAA).
If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent.
W
ARNING:
Make sure that the screws of the terminal are free from looseness.
Terminals on the indoor unit
Terminals on the outdoor unit
POWER
INPUT
1(L) 2(N)
R S T N
1(L) 2(N)
Power
Input
NORMAL CROSS-SECTIONAL AREA
Capacity 1 Phase 3 Phase
12k BTU/h 1.0mm -
18k BTU/h 2.5mm -
24k BTU/h 2.5mm -
30k BTU/h 2.5mm -
2
36k BTU/h - 2.5mm
2
48k BTU/h - 3.0mm
60k BTU/h - 3.0mm 2
1(L) 2(N)
1(L) 2(N) 1(L) 2(N)
Terminal Block
3
(Outdoor Unit)
Terminal Block
3 4 5
(Indoor Unit)
CAUTION
The connecting cable connected to the indoor and outdoor
unit should be complied with the following specifications
(Rubber insulation, type H05RN-F approved by HAR or SAA).
MPS Variable SINGLE A
3 4 5
3 4 5
NORMAL
CROSS-SECTIONAL
2
AREA 0.75mm (12k/18k/24k/30k)
AREA 1.25mm 2 (36k/48k60k)
Service Manual 97