Wiring Connection; Electrical Wiring; Connecting Cables Between Indoor Unit And Outdoor Unit - LG UUA1 Series Owner's Manual

WIRING CONNECTION

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WIRING CONNECTION

Electrical Wiring

Perform the electrical wiring work according
to the electrical wiring connection.
- All wiring must comply with local
requirements.
- Select a power source that is capable of
supplying the current required by the air
conditioner.
- Use a recognized ELCB(Electric Leakage
Circuit Breaker) between the power source
and the unit. A disconnection device to
adequately 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
1(L) 2(N)
POWER SUPPLY
UUA1 / UUB1 / UUC1
1(L) 2(N) 3
TO INDOOR UNIT
1(L) 2(N) 3
TO INDOOR UNIT
UUD3
Main
power source
Indoor
Model Name Phase(Ø)
UUA1
UUB1
UUC1
UUD1
UUD3
1(L) 2(N) 1(L) 2(N)
POWER SUPPLY TO INDOOR UNIT
UUD1
R S T N
POWER SUPPLY
ELCB
Switch box
Outdoor
ELCB (A)
1 15
1 20
1 25
1 40
3 20
3