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LG AMNH12GD4L0 - User Manual

LG AMNH12GD4L0
268 pages
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LG
Multi Type Air Conditioner
SERVICE MANUAL
LG
CAUTION
website http://www.lgservice.com
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
MODEL
Indoor Unit:
Outdoor Unit: A2UW146FA0
A2UW146FA1
A2UW146FA2
A2UW166FA0
A2UW166FA1
A2UW186FA0
A3UW186FA0
A3UW186FA1
A3UW246FA0
A4UW246FA0
A4UW306FA0
A4UW306FA1
A6UW406FA0
Room Type
Art Cool Deluxe Type
Duct Type 1 Way CST
AMNH096BTG0
AMNH126BTG0
AMNH186BTG0
AMNH096BPA0
AMNH126BPA0
AMNH186BHA0
AMNH246BHA0
AMNC246BHA0
AMNH306BGA0
AMNC306BGA0
AMNH366BGA0
AMNC366BGA0
AMNH09GB1A0
AMNH12GB1A0
AMNH18GB2A0
AMNH24GB2A0
AMNH076LQL0
AMNH096LQL0
AMNH096LRL0
AMNH126LRL0
AMNH186LTL0
AMNH246LTL0
AMNH07GD4L0
AMNH09GD4L0
AMNH12GD4L0
AMNH18GD5L0
AMNH24GD5L0
AMNH096AP*1
AMNH126AP*1
AMNH076DZ*0
AMNH096DU*0
AMNH126DU*0
AMNH186D3*0
AMNH246D3*0
AMNH07GDZ*0
AMNH09GDU*0
AMNH12GDU*0
AMNH18GD3*0
AMNH24GD3*0
AMNH07GDE*0
AMNH09GDE*0
AMNH12GDE*0
AMNH096TCC0
AMNC096TCC0
AMNH126TCC0
AMNC126TCC0
AMNH09GTCC0
AMNH12GTCC0
4 Way CST
AMNH096TEC0
AMNH126TEC0
AMNH186TEC0
AMNH246TFC0
AMNH306TFC0
AMNH366TDC0
AMNH306TFA0
AMNC306TFC0
AMNC366TDC0
AMNH09GTEF0
AMNH12GTEF0
AMNH18GTEF0
AMNH24GTHF0
CVT
AMNH096VEA0
AMNH126VEA0
AMNH186VBA0
AMNH246VBA0
Art Cool Type

Table of Contents

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LG AMNH12GD4L0 Specifications

General IconGeneral
BrandLG
ModelAMNH12GD4L0
CategoryAir Conditioner
LanguageEnglish

Summary

Model Number Nomenclature

Indoor Unit Model Number Explanation

Details on the nomenclature for indoor unit model numbers, including chassis and function codes.

Outdoor Unit Model Number Explanation

Explanation of the model number structure for outdoor units, covering capacity and type.

Panel Nomenclature

Explanation of model number nomenclature specific to cassette and built-in duct panels.

Indoor and Outdoor Unit Model Tables

Tables listing various indoor and outdoor unit models with their specifications.

Safety Precautions

Installation Safety Precautions

Critical safety instructions to follow during the installation process to prevent hazards.

Operational Safety Precautions

Essential safety guidelines for operating the air conditioner unit to ensure user safety.

Dimensions

Indoor Unit Dimensions

Detailed physical dimensions for various types of indoor units, including split and Art Cool models.

Duct Type Unit Dimensions

Physical dimensions for Duct Type indoor units, covering BH/BG, BP, and BT/BT1/B1/B2 chassis.

CVT Type Unit Dimensions

Physical dimensions for CVT Type indoor units, including VE and VB models.

CST Type Unit Dimensions

Physical dimensions for CST Type indoor units, covering TC, TC1, TE(1), TF, TH, TD chassis.

Outdoor Unit Dimensions

Physical dimensions for various outdoor unit models, including UL, UE, UE1, UE2, UH series.

Product Specifications

Indoor Unit Specifications

Detailed technical specifications for various indoor unit types, including Wall Mounted and Art Cool.

Outdoor Unit Specifications

Detailed technical specifications for outdoor units, covering various models and features.

Installation

Selecting Indoor Unit Location

Guidelines for choosing the optimal location for indoor unit installation, considering airflow and drainage.

Indoor Unit Fixing Procedures

Step-by-step instructions on how to securely fix indoor units, including wall mounting.

Piping and Drainage Procedures

Detailed steps for preparing pipes, flaring, and connecting them, along with drainage setup.

Connecting Pipes and Cables to Outdoor Unit

Instructions for connecting refrigerant pipes and electrical cables to the outdoor unit.

Refrigerant Charge Calculation

Guidelines for calculating maximum allowable piping length and additional refrigerant charge.

Operation

CVT Type Operation

Operation procedures and settings specific to CVT Type air conditioning units.

Function of Control

Explanation of the main unit's control functions, including indicators and operating modes.

Function of Indoor Unit

Detailed overview of indoor unit functions, fan speed control, and special modes.

Remote Control Operation

Guide to operating the air conditioner using various remote controller types.

Control Devices and Function

Simple Central Control Features

Features and functions of the simple central control system for managing multiple units.

Electrical Wiring Diagrams

Schematic diagrams illustrating the electrical wiring connections for central control systems.

Deluxe Central Control System

Overview and major characteristics of the Deluxe Central Control system for comprehensive management.

Disassembly of the parts (Indoor unit)

Split Type Indoor Unit Disassembly

Step-by-step instructions for disassembling the split type indoor unit.

Art Cool Type Indoor Unit Disassembly

Procedures for disassembling Art Cool Type indoor units, including control box and evaporator.

Art Cool Deluxe Type Indoor Unit Disassembly

Disassembly steps for Art Cool Deluxe Type indoor units (SZ, SU, S3, SE chassis).

CVT Type Indoor Unit Disassembly

Disassembly procedures for CVT Type indoor units, covering VB and VE chassis.

Duct Type Indoor Unit Disassembly

Disassembly steps for Duct Type indoor units, including removing front panel and diffuser assembly.

Schematic Diagram

Indoor Unit Electronic Control Device Schematics

Schematic diagrams for the electronic control devices of indoor units, including Split and Art Cool types.

Duct Type Schematics

Schematic diagrams for Duct Type indoor units, covering various chassis configurations.

Convertible Type Schematics

Schematic diagrams for Convertible Type indoor units, including AC and DC parts.

Outdoor Unit Schematics

Schematic diagrams for outdoor units, detailing the electronic control circuits.

Wiring Diagrams

Comprehensive wiring diagrams for various indoor and outdoor unit types.

Components Locations

Diagrams showing the physical locations of components on various control boards.

Troubleshooting Guide

Refrigeration Cycle Diagrams

Diagrams illustrating the refrigeration cycles for different outdoor unit models.

Self-diagnosis Function

Explanation of the self-diagnosis function and error codes for indoor and outdoor units.

Troubleshooting Specific Errors

Detailed troubleshooting steps for common issues like remote control or fan operation failures.

General Information on Errors

General information regarding error indicators and common error codes for indoor and outdoor units.

(3-way) Valve Operation

3-way Valve Operation (Liquid Side)

Explanation of the shaft positions and service port operations for the 3-way valve (liquid side).

3-way Valve Operation (Gas Side)

Explanation of the shaft positions and service port operations for the 3-way valve (gas side).

Pumping Down Procedure

Step-by-step procedure for pumping down the air conditioning system.

Evacuation Procedure

Procedure for evacuating the system to remove refrigerant and moisture.

Gas Charging Procedure

Procedure for charging the system with the correct amount of refrigerant.

Exploded View & Replacement Parts List

Indoor Unit Exploded Views

Exploded diagrams and part lists for various indoor unit chassis types.

Duct Type Exploded Views

Exploded diagrams and part lists for Duct Type indoor units (High Static and Low Static).

Cassette Type Exploded Views

Exploded diagrams and part lists for Cassette Type indoor units (1-way, 4-way).

Convertible Type Exploded Views

Exploded diagrams and part lists for Convertible Type indoor units (VE and VB chassis).

Outdoor Unit Exploded Views

Exploded diagrams and part lists for various outdoor unit models.

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