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LG General Wall Mounted-Inverter Type User Manual

LG General Wall Mounted-Inverter Type
67 pages
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Room Air Conditioner
SVC MANUAL(General)
MODEL : General Wall Mounted-Inverter Type
CAUTION
Before Servicing the unit, read the safety precautions in this SVC manual.
Only for authorized service personnel.
http://biz.lgservice.com
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LG General Wall Mounted-Inverter Type Specifications

General IconGeneral
MountingWall Mounted
Power Supply220-240V, 50Hz
TypeInverter
RefrigerantR32
FeaturesEnergy Saving, Auto Clean
Noise LevelVaries by model (Indoor: 19-42 dB(A), Outdoor: 48-55 dB(A))

Summary

Part 1 General Information

Safety Precautions for Air Conditioner Servicing

Essential safety warnings and cautions for repair and servicing procedures, including warnings and cautions in repair.

Appliance Nomenclature and Model Codes

Details the structure and meaning of global model names and component codes for identification.

Part 2 Functions & Controls

List of Air Conditioner Controls and Functions

Provides a categorized list of all functions and controls available in the air conditioner system.

Basic Mode Operation Controls

Explains the core cooling and heating modes, including operational logic and parameters.

Special Mode Operations

Details specialized operating modes like Jet Cool, Jet Heat, and Energy Saving for enhanced performance.

Utility Functions for Convenience

Describes useful functions such as Forced Operation, Auto Cleaning, and Air Volume Control.

Protection Functions and Controls

Outlines critical protection mechanisms to prevent damage and ensure safe operation of the unit.

Part 3 Test Run Procedures

Pre-Test Run Checks

Lists critical checks to perform before starting a test run to ensure safety and proper function.

Test Run Flowchart

Provides a visual guide for conducting and evaluating the test run procedure.

Detailed Test Run and Performance Evaluation

Offers detailed steps for performance evaluation, unit settlement, and pump-down operations.

Part 4 Troubleshooting Guide

2-Way and 3-Way Valve Operation

Explains the operation and handling of 2-way and 3-way valves for servicing and refrigerant management.

Refrigerant Pumping Down Procedure

Details the procedure for safely collecting refrigerant into the outdoor unit for maintenance.

Evacuation Procedure for Refrigerant Systems

Describes the process of creating a vacuum in the refrigeration system to remove air and moisture.

Refrigerant Gas Charging Procedure

Outlines the steps for safely charging the system with the correct amount of refrigerant.

Air Conditioner Self-Diagnosis Function

Explains how the unit's self-diagnosis feature identifies and reports various operational errors.

Refrigeration Cycle Troubleshooting Guide

Provides guidance on diagnosing issues based on temperature differences and operating currents.

Electronic Parts Troubleshooting Guide

Details troubleshooting steps for various electronic component failures and error codes.

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