LG Electronics LA120CPI, LA120HPO, LA090HPO, LA120CPO, LA120HPI service manual Connecting the Cables

Connecting the cable between indoor unit and outdoor unit

Connecting the cable between indoor unit and outdoor unit

ConnectingtheCables

1. Remove the cover control from the unit by loosening

the screw.

Wiring Diagram

Connecting cable(Low voltage) b

2.	Dismount caps on the conduit panel.
3.	Temporarily mount the conduit tubes on the conduit
	panel.
4.	Properly connect both the power supply and low volt-
	age lines to the corresponding terminals on the termi-
	nal block.
5.	Ground the unit in accordance with local codes.
6.	Be sure to size each wire allowing several inches
	longer than the required length for wiring.
7.	Use lock nuts to secure the conduit tubes.

Indoor Unit	Outdoor Unit
Terminal	Terminal
(4P)	(6P)
1		1
2		2
3		3
4		4
	L1* 5
	L2	6

G

*L1 is neutral for 115V models.

Power supply a

To branch circuit

Ground

NOTICE

Connector trade size for this unit is 1/2"(12.7mm). Refer to "How to connect wiring to the terminals" for instructions on connecting depending on the wire type you are using.

NOTICE

1. shows field wiring.

2.Separately wire the high and low voltage line.

3.Use heat-proof electrical wiring capable of with- standing temperatures up to 167°F(75°C).

WARNING:

• Be sure to comply with local codes while

running the wire from the indoor unit to

the outdoor unit(size of wire and wiring

method, etc).

4.Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and outdoor unit.

(For example, Type SJO-WA)

• Every wire must be connected firmly.

• No wire should be allowed to touch

refrigerant tubing, the compressor or any

moving parts.

Power Supply

Model	Power	AWG(MIN)		Fuse or breaker
	source			Capacity
9k/12k	1Ø, 115V	14	18	20A

Outdoor unit

Terminal block

Over 5mm (0.2")

Cover control

Conduit panel

Connecting cable

Power supply cord

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