LG HMC012WAE/WAC Owner's Manual

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Wiring Diagram

(1) 7K, 9K, 11K, 12K, 14K BTU Cooling Only

1. Indoor Unit (11K, 14K)

This section details the wiring diagram for the indoor unit of the LG HMC012WAE/WAC air conditioner, specifically for 11K and 14K BTU models. It illustrates connections for power, transformer, fan motor, compressor relay, PCB assembly, and display PCB. Key components include:

POWER: L(1), N(2) terminals
TRANSFORMER
FORCED OPERATION SWITCH
CN-TRANS, CN-FAN, CN-POWER, CN-TH, CN-UP/DOWN, CN-4WAY, CN-DISP connectors
RY-L, RY-M, RY-H (Relays for fan speed)
RY-COMP (Relay for compressor)
SH-CAPA (Capacitor for fan motor)
THERMISTOR
STEP MOTOR
FUSE T2A
MAIN PCB ASM
DISPLAY PCB ASM
PILLAR TERMINAL (1(L), 2(N), BLACK)

The diagram shows connections to the OUTDOOR UNIT.

2. Outdoor Unit

This section provides the wiring diagram for the outdoor unit. It includes connections for:

CAPACITOR
COMP (Compressor) with OLP (Overload Protector)
FAN MOTOR
RY-COMP (Compressor Relay)
PILLAR TERMINAL (1(L), 2(N), BLACK)
Connections to the INDOOR UNIT

The diagram shows connections labeled with colors such as YL (Yellow), BL (Blue), GN/YL (Green/Yellow), BR (Brown), RD (Red), BK (Black), and GRAY.

Indoor Wiring Diagram (7K, 9K, 12K)

This diagram illustrates the indoor unit wiring for 7K, 9K, and 12K BTU models. It shows similar components to the 11K/14K model, including:

POWER, TRANSFORMER, FORCED OPERATION SWITCH
Various CN connectors (CN-TRANS, CN-FAN, CN-POWER, CN-TH, CN-UP/DOWN, CN-4WAY, CN-DISP)
Relays (RY-L, RY-M, RY-H, RY-COMP, RY-4WAY, RY-FAN)
SH-CAPA (Capacitor)
THERMISTOR, STEP MOTOR
FUSE T2A
MAIN PCB ASM, DISPLAY PCB ASM
PILLAR TERMINAL (1(L), 2(N), 3, 4, BLACK, GRAY)

The diagram indicates connections to the OUTDOOR UNIT.

Outdoor Wiring Diagram

This diagram shows the outdoor unit wiring, featuring:

CAPACITOR
COMP (Compressor) with OLP
FAN MOTOR
REVERSING VALVE
PILLAR TERMINAL (1(L), 2(N), 3, 4, BLACK, GRAY)

Connections are made to the INDOOR UNIT and are color-coded (BR, BL, RD, BK, BL, BR, YL, GN/YL).

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