Connecting Cables Between Indoor Unit And Outdoor Unit - LG LB-H1860RH Service Manual

5. Connecting Cables between Indoor Unit and Outdoor Unit

1) Connecting cables to the Indoor Unit
Connect the wires to the terminals on the control board individually according to the
outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as
those of indoor unit respectively
18K/24K Btu
• Cooling only type
Terminals on the indoor unit
Terminals on the outdoor unit
POWER
INPUT
36K/48K/60K Btu (3Ø)
• Cooling only type
Terminals on the indoor unit
Terminals on the outdoor unit 1
36K Btu (1Ø)
• Cooling only type
Terminals on the indoor unit
Terminals on the outdoor unit 1
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 availible from the manufacturer of its service agent.
WARNING
Make sure that the screws of the terminal are free from looseness.
2) Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.
For the heat pump model, put the 0.75mm
with a plastic clamp to the other boss of the control panel.
4) In Australia, the length of power supply cord measured from the entry of the power supply
cord to the middle of live pin on the power plug should be over 1.8m.
3(L) 4(N)
1(L) 2(N) 3(L) 4(N) 5
1 2 3 4 5
2 3 4 5
1 2 3 4 5
2 3 4 5
NORMAL CROSS-SECTIONAL AREA
Capacity 1 Phase 3 Phase
2
18K BTU/h 2.5mm -
2
24K BTU/h 2.5mm -
2
36K BTU/h 5.5mm 2.5mm
48K BTU/h - 3.5mm
60K BTU/h - 3.5mm
• Cooling & Heating type
Terminals on the indoor unit
5 6
Terminals on the outdoor unit
• Cooling & Heating type
Terminals on the indoor unit
Terminals on the outdoor unit 1
• Cooling & Heating type
Terminals on the indoor unit
Terminals on the outdoor unit 1
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
2
cable(thinner cable) on the clamp and tighten it
2
–28–
3(L) 4(N)
1(L) 2(N) 3(L) 4(N)
POWER
INPUT
1 2 3 4 5
2 3 4 5
1 2 3 4 5
2 3 4 5
NORMAL
CROSS-SECTIONAL
AREA 0.75mm 2 (18K/24K/36K)
1.25mm 2 (48K/60K)
5 6 7
5 6 7 8
(380-415V3N~)
R S T N
POWER INPUT
(220-240V, 1Ø, 50)
1(L) 2 3(N)
POWER INPUT