Wiring Connection - LG ATNC186ELAA Service Manual

4. 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.
3Phase
Heat Pump Model.
3Phase
Cooling Model Only.
1Phase
Cooling Model Only.
1Phase
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 or its service agent.
WARNING
Make sure that the screws of the terminal are free from looseness.
Terminal Block of Outdoor Unit
R S T N
1(L) 2(N) 3
POWER INPUT
Terminal Block of Outdoor Unit
R S T N
1(L) 2(N) 3
POWER INPUT
Terminals on the indoor unit
Terminals on the outdoor unit 1(L) 2(N)
POWER
INPUT
Terminals on the indoor unit
1(L) 2(N)
Terminals on the outdoor unit
POWER
INPUT
Capacity 1 Phase 3 Phase
18, 24, 30k
2
2.5mm
BTU/h
2
36K BTU/h 5.5mm 2.5mm
48, 54K BTU/h
- 3.5mm
4 5
4 5
3(L) 4(N) 5 6 7
3(L) 4(N) 5 6 7 8
3(L) 4(N) 5 6 7
3(L) 4(N) 5 6 7 8
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).
-
2
2
Installation
Terminal Block of Indoor Unit
1(L) 2(N) 3 4 5
Terminal Block of Indoor Unit
1(L) 2(N) 3 4 5
NORMAL
CROSS-SECTIONAL
2
AREA 0.75mm (18K/24K/30K)
2
1.25mm (36k/48k/45k)
Service Manual 67