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LG LM-3022C3L/A3L User Manual

LG LM-3022C3L/A3L
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Multi Type Room Air Conditioner
SERVICE MANUAL
MODEL: LM-2421C2L/A2L
LM-3022C3L/A3L
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LG LM-3022C3L/A3L Specifications

General IconGeneral
TypeSplit System
Power Supply220-240V, 50Hz
RefrigerantR32
Cooling Capacity3.5 kW
Noise Level (Outdoor)50 dB

Summary

Functions

Indoor Unit Functions

Details about the functions and operations of the indoor unit.

Remote Controller Functions

Details about the functions and operations of the remote controller.

Refrigeration Cycle

LM-2421C2L/A2L Cycle

Refrigeration cycle diagram and pipe specs for LM-2421C2L/A2L.

LM-3022C3L/A3L Cycle

Refrigeration cycle diagram and pipe specs for LM-3022C3L/A3L.

Wiring Diagrams

Indoor Unit Wiring

Wiring diagram for the indoor unit.

Outdoor Unit Wiring

Wiring diagrams for outdoor units.

Installation Procedures

Location Selection & Piping Specs

Guidance on location selection and piping length/elevation limits.

Indoor Unit Installation

Mounting Plate and Piping Hole

Steps for installing the indoor unit, including mounting plate and piping holes.

System Setup and Testing

Air Purging & Pipe Length

Procedure for air purging, checking pipe length, and refrigerant charge.

Indoor Unit Disassembly

Refrigeration Cycle Service

Troubleshooting Guide

System Failure Diagnosis

Step-by-step diagnosis for no cool air, no operation, and communication errors.

Component Failure Diagnosis

Troubleshooting electronic parts, remote control, fan, louver, and outdoor unit issues.

Electronic Control Devices

Schematic Diagrams

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