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LG Therma V AHBW Series - User Manual

LG Therma V AHBW Series
98 pages
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CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com
System
GENERAL SVC MANUAL
MODEL : AHBW Series

Table of Contents

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LG Therma V AHBW Series Specifications

General IconGeneral
CategoryAir Conditioner
RefrigerantR32
Heating Capacity4.0 - 16.0 kW
Energy Efficiency Ratio (Heating)A+++
Energy Efficiency Ratio (Cooling)A++
Operating Temperature Range (Heating)-25°C to +35°C

Summary

Safety Precautions

Installation Safety

Essential safety guidelines for installing the air conditioner unit to prevent hazards.

Operation Safety Guidelines

Crucial safety instructions for operating the air conditioner to ensure user and product protection.

General Information

Model Names and Specifications

Details of various model names and their related technical specifications.

External Appearance Overview

Visual representation and identification of the unit's external components.

Model Nomenclature Explained

Explanation of the coding system used in model numbers.

Features and Controls

List of Available Functions

Comprehensive list of functions and features applicable to different unit models.

Features & Controls Overview

Summary of key features, emergency controls, and remote controller functions.

Special Function Details

Detailed explanation of special functions like Child Lock and Timer operations.

System Set-up

DIP Switch Setting Guide

Instructions for configuring the unit's functionality using DIP switches.

Control Panel Setting Mode

Procedure for entering and using the installer setting mode on the control panel.

Common Setting Parameters

Function Code 01: Refrigerant Charging

Details on setting up additional refrigerant charging operations.

Function Code 05: Temperature Selection

Configuration for selecting target temperature based on air or water temperature.

Function Code 11: Cooling Temperature Range

Setting the adjustable temperature range for cooling mode.

Test Run Procedures

Pre-Test Run Checks

Essential checks to perform before initiating the unit's test run.

Test Run Flow Chart

Graphical representation of the steps for conducting a successful test run.

Basic Control Operations

Normal Operation Principles

Explanation of the fundamental principles behind normal unit operation.

Compressor Control Logic

Details on how the compressor's operation is managed.

Replacement Procedures

Compressor Replacement Guide

Step-by-step instructions for replacing the compressor unit.

INV PCB Replacement Guide

Procedure for safely replacing the Inverter Printed Circuit Board.

Trouble Shooting

Checking Key Unit Components

Diagnostic steps for verifying the condition of critical unit components.

Self-Diagnosis Feature

Understanding the unit's self-diagnostic capabilities and error classification.

Troubleshooting Specific Error Codes

Detailed guidance for diagnosing and resolving various error codes.

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