Wiring Connection; Electrical Wiring; Connecting Cables Between Indoor Unit And Outdoor Unit - LG UU85W Installation Manual

WIRING CONNECTION

Electrical Wiring

Perform the electrical wiring work according
to the electrical wiring connection.
- All wiring must comply with local require-
ments.
- Select a power source that is capable of sup-
plying the current required by the air condi-
tioner.
- Use a recognized ELCB(Electric Leakage Cir-
cuit Breaker) between the power source and
the unit. A disconnection device to ade-
quately disconnect all supply lines must be
fitted.
- Model of circuit breaker recommended by
authorized personnel only

Connecting Cables between Indoor Unit and Outdoor 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
Simultaneous
Operation Unit 2,3,4
Main Unit1
(380V-415V3N)
Terminals on the
Outdoor unit
R S
POWER INPUT
S Terminals on the indoor unit 4
S Terminals on the indoor unit 3
S Terminals on the indoor unit 2
M
Terminals on the indoor unit 1
(220V-240V~)
T N L N
POWER INPUT
WIRING CONNECTION
Main
power source
Indoor
Model Phase(Ø)
UU85W 3
1(L) 2(N) 3 1(L) 2(N) 3
1(L) 2(N) 3 1(L) 2(N) 3
1(L) 2(N) 3 1(L) 2(N) 3
1(L) 2(N) 3 1(L) 2(N) 3
1(L) 2(N) 3 1(L) 2(N) 3
DUCT, CVT CST
• When using simultaneous Operation System,
use only one wired remote controller
in the indoor units
23
ELCB
Switch box
Outdoor
ELCB
30A
4 5 CN-REMO
4 5 CN-REMO
CN-REMO
4 5
4 5
CN-REMO
Remote
Controller