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LG A4UW306FA0 - User Manual

LG A4UW306FA0
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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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Summary

LG Multi Type Air Conditioner SERVICE MANUAL

MODEL

Specifies indoor and outdoor unit types and their models.

Model Number Nomenclature

Indoor Unit

Explains the coding system for indoor unit model numbers.

Outdoor Unit

Explains the coding system for outdoor unit model numbers.

Safety Precautions

Installation

Provides critical safety instructions for installing the air conditioner unit.

Dimensions

Indoor Unit

Details the physical dimensions of various indoor unit types.

Product Specifications

Indoor Unit

Lists detailed technical specifications for indoor units.

Installation

Select the best location of indoor unit

Guidance on choosing optimal placement for indoor units to ensure performance and safety.

Piping and Drainage of Indoor Unit

Preparation of pipings

Instructions on cutting, deburring, and flaring pipes for refrigerant lines.

Connecting Pipings and the cable to Outdoor unit

*Connecting pipe size

Specifies the required pipe sizes for different indoor unit capacities.

Electric characteristics

Notes

Provides important notes regarding voltage, MCA, MOP, and MSC values.

Checking the Drainage and Pipe forming

1. Split Type Indoor Unit

Steps to check the drain hose and pipe forming for split type indoor units.

Maximum Length of Pipe and Extra Charge of Refrigerant Charge

1.1 The maximun allowable level and piping length

Defines maximum allowable piping lengths and levels for multi-type systems.

Test Running

SPLIT, ART cool, ART cool deluxe Type

Procedure for performing test runs on specific indoor unit types.

System Layout and Piping Length

System Layout

Illustrates system layouts and piping configurations for multi-type air conditioners.

Installation of The Main Unit

(1) Ceiling-suspended type

Details the procedure for installing the main unit in a ceiling-suspended configuration.

Connection of Piping

Connecting the pipings to the indoor unit and drain hose to drain pipe

Instructions for connecting pipes and drain hoses to indoor units, including insulation.

Connection of Wiring

In Case of 3 rooms

Wiring connections for a 3-room system, showing terminal board arrangements.

Operation

Function of control

Explains the operational logic and control functions of the main unit.

Remote Control Operation

START;STOP BUTTON

Describes the function of the Start/Stop button on the remote control.

Control Devices and Function

Simple Central Control

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

Disassembly of the parts (Indoor unit)

1. Split Type Indoor unit

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

Schematic Diagram

1. Indoor Unit

Provides schematic diagrams for indoor unit electronic control devices.

Wiring Diagram

1. Room Type Indoor Unit -SQ;SR;ST chassis

Wiring diagram for Room Type indoor units (SQ/SR/ST chassis).

Troubleshooting Guide

Refrigeration Cycle Diagram

Illustrates the refrigerant flow for various outdoor unit models.

Self-diagnosis Function

Indoor Error

Lists error codes and descriptions for indoor unit faults.

General Information

■ Error Indicator (Indoor)

Explains the error indicators displayed on indoor units and control boards.

(3-way) Valve

3-way Valve (Liquid Side)

Details the operation and shaft positions of the 3-way valve for the liquid side.

Exploded View & Replacement Parts List

Indoor Unit

Exploded view and part list for the SQ/SR chassis indoor unit.

Parts List (SQ, SR chassis)

LOCATION No.

Lists part numbers by location number for SQ/SR chassis.

Exploded View & Replacement Parts List

ST chassis

Exploded view of the ST chassis indoor unit.

Parts List (ST chassis)

LOCATION No.

Lists part numbers by location number for ST chassis.

Exploded View & Replacement Parts List

S4, S5 chassis

Exploded view of the S4/S5 chassis indoor unit.

Parts List (S4, S5 chassis)

LOCATION No.

Lists part numbers by location number for S4/S5 chassis.

Exploded View & Replacement Parts List

SP1 chassis(Art cool type)

Exploded view of the SP1 chassis indoor unit (Art Cool Type).

Parts List(SP1 chassis)

LOCATION No.

Lists part numbers by location number for SP1 chassis.

Exploded View & Replacement Parts List

Art Cool Deluxe Type(SU,SZ, S3 chassis - A;C Motor)

Exploded view of Art Cool Deluxe Type indoor units (SU,SZ, S3 chassis) for A/C Motor.

Parts List(Art cool Deluxe Type A;C Motor)

LOCATION No.

Lists part numbers by location number for Art Cool Deluxe Type A/C Motor.

Exploded View & Replacement Parts List

Art Cool Deluxe Type(SU,SZ, S3 chassis - BLDC)

Exploded view of Art Cool Deluxe Type indoor units (SU,SZ, S3 chassis) for BLDC Motor.

Parts List(Art cool Deluxe Type BLDC)

LOCATION No.

Lists part numbers by location number for Art Cool Deluxe Type BLDC units.

Exploded View & Replacement Parts List

DUCT LOW(B1)

Exploded view of DUCT LOW (B1) chassis.

Parts List(Duct Type - Low Static)

LOCATION No.

Lists part numbers by location number for Duct Type - Low Static (B1) chassis.

Exploded View & Replacement Parts List

Duct Type - High Static

Exploded view of Duct Type - High Static chassis.

Parts List(Duct Type - High Static )

LOCATION No.

Lists part numbers by location number for Duct Type - High Static chassis.

Exploded View & Replacement Parts List

Built in Duct type (BP chassis)

Exploded view of Built in Duct type (BP chassis).

Parts List(Built in Duct Type-BP chassis)

LOCATION No.

Lists part numbers by location number for Built in Duct Type-BP chassis.

Exploded View & Replacement Parts List

Cassette Type - 1 way (TC1 chassis)

Exploded view of Cassette Type - 1 way (TC1 chassis).

Parts List(Cassette Type - 1 way)

LOCATION No.

Lists part numbers by location number for Cassette Type - 1 way.

Parts List(Cassette Type - 1 way)

Part No.

Lists part numbers for Cassette Type - 1 way models.

Exploded View & Replacement Parts List

Cassette Type - 4 way(TF chassis)

Exploded view of Cassette Type - 4 way (TF chassis).

Exploded View & Replacement Parts List

Cassette Type - 4 way(TH chassis)

Exploded view of Cassette Type - 4 way (TH chassis).

Parts List(Cassette Type - 4 way - TH)

PART No.

Lists part numbers for Cassette Type - 4 way (TH) models.

Exploded View & Replacement Parts List

Cassette Type - 4 way(TD chassis)

Exploded view of Cassette Type - 4 way (TD chassis).

Exploded View & Replacement Parts List

Cassette Type - 4 way(TD chassis)

Exploded view of Cassette Type - 4 way (TD chassis).

Exploded View & Replacement Parts List

Convertible Type (VE chassis)

Exploded view of Convertible Type (VE chassis).

Parts List(Convertible Type-VE chassis)

LOCATION No.

Lists part numbers by location number for Convertible Type-VE chassis.

Exploded View & Replacement Parts List

Convertible Type (VB chassis)

Exploded view of Convertible Type (VB chassis).

Exploded View & Replacement Parts List

A2 UW146 FA0, A3 UW186 FA0

Exploded view for specific outdoor unit models.

Parts List (Single compressor inverter)

Location No.

Lists part numbers by location for single compressor inverter models.

Exploded View & Replacement Parts List

A3 UW246 FA0, A4 UW246 FA0 - TPS Inverter

Exploded view for specific outdoor unit models.

Parts List (A3 UW246 FA0, A4 UW246 FA0 - TPS Inverter)

Part No.

Lists part numbers for A3UW246FA0, A4UW246FA0 models.

Exploded View & Replacement Parts List

A4 UW306 FA0, A4 UW306 FA1 - TPS Inverter

Exploded view for specific outdoor unit models.

Parts List (A4 UW306 FA0, A4 UW306 FA1 - TPS Inverter)

Part No.

Lists part numbers for A4UW306FA0, A4UW306FA1 models.

Exploded View & Replacement Parts List

A6 UW406 FA0 - TPS Inverter

Exploded view for specific outdoor unit models.

Parts List (A6 UW406 FA0 - TPS Inverter)

Part No.

Lists part numbers for A6UW406FA0 model.

LG A4UW306FA0 Specifications

General IconGeneral
BrandLG
ModelA4UW306FA0
CategoryAir Conditioner
LanguageEnglish

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