LG THERMA V AHBW166A0 User Manual

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

LG THERMA V AHBW166A0 Specifications

General

Heating Capacity	16 kW
Refrigerant	R32
Weight (Outdoor Unit)	98 kg
Type	Air to Water Heat Pump
Energy Efficiency Class (Heating)	A++

Summary

Safety Precautions and Warnings

Installation Safety Guidelines

Safety instructions for unit installation.

Operation Safety Guidelines

Safety instructions for unit operation.

General Information and Model Details

Model Names

Lists model names and related technical information.

External Appearance

Visual representation of the unit's external design.

Nomenclature Explained

Explanation of the model number naming convention.

Features, Controls, and System Setup

List of Available Functions

Comprehensive list of functions available for different models.

Remote Controller Operation Guide

Details on the remote controller's functions and display.

System Setup and Configuration Options

DIP switch, control panel, and function code settings.

Basic Control Principles

Normal Operation Principles

Explains basic principles of compressor and fan control.

EEV Control Logic

Details on Electronic Expansion Valve control for superheat.

Replacement Procedures

Compressor Replacement Guide

Step-by-step guide for replacing the compressor.

PCB Replacement Procedures

Procedures for replacing main PCB assemblies.

Outdoor Panel Assembly Caution

Cautionary notes for reassembling outdoor unit panels.

Troubleshooting and Error Diagnosis

Checking Key Components for Troubleshooting

Diagnosing issues with flow switch, water pump, and electric heater.

Self-Diagnosis and Error Code Interpretation

Understanding self-diagnosis concepts and error code lists.

Specific Error Troubleshooting Steps

Troubleshooting sensor issues and communication failures.