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LG AVNH246BLAC - User Manual

LG AVNH246BLAC
174 pages
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LG
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Air Conditioner
SERVICE MANUAL
LG
CAUTION
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
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Summary

Model Number Nomenclature

Indoor Unit Model Number Structure

Explains the coding system for LG indoor air conditioner model numbers.

Outdoor Unit Model Number Structure

Explains the coding system for LG outdoor air conditioner model numbers.

Safety Precautions

Installation Safety Guidelines

Essential safety instructions for the proper installation of the air conditioner.

Operation Safety Guidelines

Critical safety measures to follow during the operation of the air conditioner.

Model Names

Indoor Unit Model Identification

Lists and categorizes various indoor unit model names by type and capacity.

Outdoor Unit Model Identification

Lists and categorizes various outdoor unit model names by type and capacity.

Dimensions

Indoor Unit Dimensions

Provides detailed physical dimensions for various indoor unit types.

Outdoor Unit Dimensions

Provides detailed physical dimensions for outdoor unit models.

Product Specifications

Indoor Unit Technical Specifications

Detailed technical data for indoor units, including capacity, power, and dimensions.

Outdoor Unit Technical Specifications

Detailed technical data for outdoor units, including capacity, power, and features.

Installation Procedures

Indoor Unit Installation Steps

Step-by-step guide for installing indoor units, including location and mounting.

Outdoor Unit Installation Steps

Guidelines for selecting the location and installing outdoor units.

Wiring and Connections

Indoor Unit Wiring Details

Instructions for making electrical connections for indoor units.

Outdoor Unit Wiring Details

Instructions for making electrical connections for outdoor units.

Operation Modes and Functions

Basic Unit Functions and Indicators

Details on display indicators, operation modes, and fan speed controls.

Advanced Operation Modes

Explanation of Fuzzy, Defrost, Jet Cool, and other advanced operational modes.

Remote Controller Usage

Guide to operating the air conditioner using the remote controller.

Control Systems

Simple Central Control System

Overview of features and functions for simple central control.

Deluxe Central Control System

Details on the advanced deluxe central control system's capabilities.

Schematic and Wiring Diagrams

Indoor Unit Electronic Diagrams

Circuit diagrams for various indoor unit electronic control devices.

Outdoor Unit Schematics

Circuit diagrams for outdoor units, showing component layout.

Wiring Diagrams

Visual representation of electrical connections for different unit types.

Piping Diagrams

AUUH488 C Piping Configurations

Illustrates refrigerant piping for AUUH488C models with multiple indoor units.

AUUH728 C Piping Configurations

Illustrates refrigerant piping for AUUH728C models with multiple indoor units.

AUUH1008 C Piping Configurations

Illustrates refrigerant piping for AUUH1008C models with multiple indoor units.

Troubleshooting Guide

Refrigeration Cycle Analysis

Diagnostic steps for issues related to refrigerant cycle and temperature differences.

Electronic Component Troubleshooting

Step-by-step troubleshooting for common product and remote control malfunctions.

Error Code Diagnostics

Guide to interpreting error codes indicated by LED lights for self-diagnosis.

(3-way) Valve Procedures

3-Way Valve Work Steps

Details on valve operation for purging, pumping down, evacuation, and charging.

Refrigerant Charging Process

Step-by-step instructions for charging refrigerant into the system.

Unit Functions

Ceiling Cassette Type Functions

Explains auto swing, soft-dry, cooling, and heating modes for cassette units.

Duct Type Functions

Explains operation modes and controls for duct units.

Ceiling & Floor Functions

Explains operation modes and controls for ceiling/floor units.

Outdoor Unit Control Logic

Details on basic control, compressor step control, EEV, fan, and reversing valve functions.

Exploded View & Replacement Parts List

Indoor Unit Parts Identification

Exploded views and part numbers for indoor unit components.

Outdoor Unit Parts Identification

Exploded views and part numbers for outdoor unit components.

LG AVNH246BLAC Specifications

General IconGeneral
BrandLG
ModelAVNH246BLAC
CategoryAir Conditioner
LanguageEnglish

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