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LG A6UW406FA0 - User Manual

LG A6UW406FA0
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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

Other manuals for LG A6UW406FA0

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Summary

Model Number Nomenclature

Indoor Unit Model Number

Explanation of the model number structure for indoor units.

Outdoor Unit Model Number

Explanation of the model number structure for outdoor units.

Panel Model Number Nomenclature

Details on model number nomenclature for panel types.

Indoor and Outdoor Unit Classification

Classification of indoor units by type and capacity, and outdoor unit specs.

Safety Precautions

Installation Safety Guidelines

Crucial safety guidelines for installing the unit.

General Installation and Operation Safety

Further safety instructions regarding power cables and installation area.

Operational and Environmental Safety

Safety instructions on water, flammable gas, and storm conditions.

Product Operation and Maintenance Safety

Safety instructions on product operation, cleaning, and securing the outdoor unit.

Installation Location and Usage Safety

Safety guidelines for product installation location and usage.

Filter, Battery, and Cleaning Safety

Safety instructions for handling filters, batteries, and cleaning.

Dimensions

Indoor Unit Dimensions

Physical dimensions and installation plate details for indoor units.

Split Type Indoor Unit Dimensions

Dimensions for split type indoor units.

Art Cool Type Indoor Unit Dimensions

Dimensions for Art Cool type indoor units.

Art Cool Deluxe Type Indoor Unit Dimensions

Dimensions for Art Cool Deluxe type indoor units.

Duct Type Indoor Unit Dimensions

Dimensions for duct type indoor units.

CVT Type Indoor Unit Dimensions

Dimensions for CVT type indoor units.

CST Type Indoor Unit Dimensions

Dimensions and connection details for CST Type TC,TC1 units.

CST Type TE(1) Indoor Unit Dimensions

Dimensions for CST Type TE(1) units.

CST Type TF Indoor Unit Dimensions

Dimensions for CST Type TF units.

CST Type TH Indoor Unit Dimensions

Dimensions for CST Type TH units.

CST Type TD Indoor Unit Dimensions

Dimensions for CST Type TD units.

Outdoor Unit Dimensions

Physical dimensions for various outdoor unit models.

Product Specifications

Indoor Unit Specifications

Detailed specifications for Wall Mounted indoor units.

Indoor Unit Type Classification

Model type classification for indoor units.

Art Cool Mirror and Deluxe Indoor Unit Specs

Specifications for ART COOL Mirror and ART COOL DELUXE indoor units.

Art Cool Deluxe and Art Cool Indoor Unit Specs

Specifications for ART COOL DELUXE and ART COOL indoor units.

Ceiling Cassette and Concealed Duct Indoor Unit Specs

Specifications for Ceiling Cassette - 1 way and 4 way, and Concealed Duct units.

Ceiling Cassette Indoor Unit Specifications

Specifications for Ceiling Cassette - 1 way indoor units.

CST and Concealed Duct Indoor Unit Specifications

Specifications for CST and Concealed Duct units.

Ceiling Concealed Duct and Floor Indoor Unit Specifications

Specifications for Ceiling Concealed Duct and Ceiling & Floor units.

Ceiling Concealed Duct - Low Static Unit Specifications

Specifications for Ceiling Concealed Duct - Low Static units.

Outdoor Unit - Multiple Piping Type Specifications

Specifications for multiple piping outdoor units.

Outdoor Unit - Multiple Piping Type Specifications

Further specifications for multiple piping outdoor units.

Outdoor Unit - Distributor Type Specifications

Specifications for distributor type outdoor units.

LG Branch Distributor Specifications

Specifications and notes for LG Branch Distributors.

Installation

Indoor Unit Location Selection

Guidance on choosing the optimal location for indoor units.

Split Type Indoor Unit Installation

Installation location considerations for split type indoor units.

Art Cool Type Indoor Unit Installation

Installation location considerations for Art Cool type indoor units.

Art Cool Deluxe Type Indoor Unit Installation

Installation location considerations for Art Cool Deluxe units.

Duct Type Indoor Unit Installation

Installation requirements for duct type indoor units.

CST Type Indoor Unit Installation

Installation location considerations for CST type indoor units.

CVT Type Indoor Unit Installation

Installation location considerations for CVT type indoor units.

Room Type Indoor Unit Installation Procedure

Step-by-step guide for installing room type indoor units.

Art Cool Type Indoor Unit Installation

Disassembly and installation steps for Art Cool type indoor units.

Installation Guide Map and Fixing Indoor Unit

Guide to using the installation map and fixing the indoor unit.

Drilling Wall Holes for Piping

Instructions for drilling wall holes for piping.

Art Cool Deluxe Type Indoor Unit Installation

Installation steps for Art Cool Deluxe Type indoor units.

Duct Type Indoor Unit Installation

Installation instructions for Duct Type indoor units (BH chassis).

Main Unit Installation - BT Chassis

Installation of the main unit for BT chassis.

BP Chassis Unit Installation

Installation instructions for BP chassis units.

B1, B2 Chassis Unit Installation

Installation instructions for B1, B2 chassis units.

Indoor Unit Piping and Drainage Preparation

Steps for preparing pipes, including cutting, removing burrs, and flaring.

Indoor Unit Piping Connection

Detailed steps for connecting piping for split type indoor units.

Right Rear Piping Installation

Instructions for routing and wrapping pipes for right rear piping.

Final Piping Connections and Insulation

Final piping connections and insulation steps.

Art Cool Type Indoor Unit Piping Connection

Piping and drain hose connection for Art Cool Type units.

Panel Assembly Procedure

Steps for assembling the front panel and connecting wires.

Art Cool Deluxe Type Indoor Unit Piping Connection

Piping connection steps for Art Cool Deluxe Type indoor units.

Left Rear Piping Installation

Instructions for routing and wrapping pipes for left rear piping.

Left Rear Piping Final Steps

Final piping and insulation steps for left rear routing.

Left Piping Installation Information Caution

CAUTION regarding tubing bending and pipe damage.

Duct Type Indoor Unit Installation

Indoor unit installation for duct type units, including suspension bolts.

CVT Type Indoor Unit Ceiling Installation

Installation on the ceiling for CVT type units (VB chassis).

Ceiling Mounting Installation Steps

Securing installation plates and adjusting unit level for ceiling mounting.

VE Chassis Wall Installation

Installation on the wall for VE chassis units.

Ceiling Mounting Anchor Nut & Bolt

Steps for mounting anchor nuts and bolts for ceiling installation.

Drilling Wall Holes

Instructions for drilling holes in the wall for piping.

Declination Information for Convertible Type

Importance of unit declination for proper drainage.

Securing Unit to Installation Plates

Steps for securing the unit to installation plates and attaching components.

Wall Installation

Wall installation steps, including drilling and securing plates.

Indoor Unit Installation onto Installation Plate

Securing the indoor unit to the installation plate and attaching parts.

Floor Installation

Floor installation steps, including mounting brackets and piping.

Ceiling Cassette Type - TC, TC1 Chassis Installation

Ceiling opening dimensions and hanging bolt locations for TC, TC1 chassis.

Indoor Unit Installation

Indoor unit installation steps, including hanging bolts and piping hole drilling.

Ceiling Cassette Type - TE(1);TF;TH;TD Chassis Installation

Ceiling opening dimensions and installation for TE(1)/TF/TH/TD chassis.

Indoor Unit Installation Details

Indoor unit installation details, including hanging bolts and piping hole drilling.

Remote Controller Installation

Wired Remote Control Installation

Steps for installing a wired remote controller.

Electrical Wiring for Remote Control

Wiring diagram for remote controller connection.

Remote Control Preparation

Instructions for inserting batteries into the remote controller.

Connecting Pipings and Cable to Outdoor Unit

Connecting Pipings to the Outdoor Unit

Detailed procedure for connecting pipes to the outdoor unit.

Electric Characteristics

Unit Electrical Specifications

Electrical specifications for indoor units.

Power Supply and Wiring Safety

Electrical safety precautions regarding power supply and wiring.

Checking Drainage and Pipe Forming

Split Type Indoor Unit Drainage Check

Steps to check drainage and pipe formation for split type indoor units.

Art Cool Type Indoor Unit Drainage Check

Steps to check drainage for Art Cool type indoor units.

Art Cool Deluxe Type Drainage Check

Checking drainage and drain piping for Art Cool Deluxe units.

Convertible Type Indoor Unit Drainage Check

Checking drainage and drain piping for Convertible Type units.

Duct Type Indoor Unit Drainage Caution

CAUTION for gradient of unit and drain piping for Duct Type.

CST Type Indoor Unit Drain Piping and Test

Drain piping instructions and drain test for CST Type indoor units.

Maximum Pipe Length and Refrigerant Charge

TPS Inverter Multi - Multi Piping Type Limits

Allowable piping length and extra charge calculation for multi-piping systems.

Refrigerant Charge Calculation

Calculating additional refrigerant charge based on pipe length.

TPS Inverter Multi - Distributor Type Piping Length

Maximum allowable level and piping length for distributor type systems.

Distributor Type A4 UW306 FA1 Piping Length

Piping length details for the A4UW306FA1 distributor type.

Refrigerant Charge Calculation and Guidelines

Calculation of additional refrigerant charge based on pipe length.

Piping Connection Size Specifications

Specifications for piping connections based on indoor unit type.

Refrigerant Piping Trap Necessity

Importance and installation of traps in refrigerant piping.

Y-Branch Standard Accessory

Details on the standard Y-Branch accessory.

Test Running

Test Running Procedures for Split, Art Cool Types

Test running procedures and evaluation for specific indoor unit types.

CVT Type Operation

Operation procedures for CVT type units.

Ceiling Cassette Type Test Run Precautions

Precautions in test run and installation completion checks.

System Layout and Piping Length

System Layout Diagrams

Diagrams illustrating system layout and piping configurations.

Branch Distributor Location Precautions

Precautions for selecting the location of the branch distributor.

Installation Procedures

General Installation Guidelines

General installation guidelines for suspension or wall mounting.

Main Unit Installation - Ceiling Suspended

Procedure for ceiling-suspended installation of the main unit.

Main Unit Installation - Wall Mounted

Procedure for wall-mounted installation of the main unit.

Indoor Unit Piping and Drain Hose Connection

Steps for connecting pipes and insulating them.

Closing Unoccupied Sockets

How to properly close unoccupied piping sockets.

Wiring Connections for 3-Room Systems

Wiring connections for systems with up to 3 rooms.

Operation

Main Unit Function and Controls

Overview of the main unit functions and indicators.

Cooling Mode Operation Details

Details on how the cooling mode operates.

Soft Dry Operation Mode Explanation

Explanation of the soft dry operation mode.

Heating Mode Operation Details

Details on how the heating mode operates.

Defrost Control in Heating Mode

How defrost control works during heating operation.

Fuzzy Operation Logic

Explanation of the fuzzy operation logic.

Fuzzy Operation Modes

Fuzzy operation logic for dehumidification and heating modes.

Airflow Speed Selection

How to select airflow speed using the remote control.

Sleep Timer Operation

Operation of the sleep timer function.

Chaos Swing Mode Operation

How the chaos swing mode operates.

Chaos Natural Wind Mode Operation

Details on the chaos natural wind mode operation.

Jet Cool Mode Operation

Operation of the jet cool mode.

Auto Restarting Operation

How auto restart operates after power failure.

Forced Operation Mode

How to operate the unit using forced operation mode.

Buzzer Sounding Operation

Explanation of buzzer sounds during operation.

Split Type Indoor Unit Functions

Overview of functions for split type indoor units.

Art Cool Type Indoor Unit Functions

Overview of functions for Art Cool type indoor units.

Art Cool Deluxe Type Remote Controller Functions

Functionality of the Art Cool Deluxe Type remote controller.

Duct Type Remote Controller Functions

Functionality of the Duct Type remote controller.

CST Type Remote Controller Functions

Functionality of the CST Type remote controller.

Convertible Type Remote Control Functions

Functionality of the Convertible Type remote control.

Outdoor Unit Functions

Overview of outdoor unit functions and algorithms.

Remote Control Operation Modes

Explanation of the operation modes available via remote control.

Control Devices and Function

Simple Central Control Features

Features and functions of the simple central control system.

Central Control Part Functions

Description of the parts and functions of the central control unit.

Electrical Wiring Connections

Pictorial view and connection diagram for electrical wiring.

Simple Central Control Connection Diagram

Connection diagram for simple central control systems.

Multiple Simple Central Control Connections

Connection details for multiple simple central control units.

PI485 Setting Method for LG Aircon Network

Setting method for PI485 interface in LG Aircon Network.

Indoor Unit Address Setting Method

Method for setting the address of indoor units using wired or wireless remotes.

Address Monitoring Procedure

How to monitor the set address of indoor units.

Test Run Method

General cautions regarding installation locations.

Central Control Installation Order

Steps for installing the central control unit.

Connecting Wire Linkage

How to connect the wiring for the central control unit.

Rotary Switch Setting for Central Control

Setting the group number using the rotary switch.

DIP Switch Setting for Central Control

Setting the DIP switch for master/slave mode.

Accessory Parts for Central Control

Optional accessory parts for central control.

Deluxe Central Control System Summary

Summary of the Deluxe Central Control system.

Deluxe Central Control Major Characteristics

Key characteristics of the Deluxe Central Control system.

Convenient GUI and Touch Screen Features

Ease of use and intuitive interface of the Deluxe Central Control.

Schedule Automatic Operation and Energy Saving

Features for schedule management and energy saving.

Power Failure Backup and Stability Features

Stability and power failure backup features.

Mobility Features

Mobility features of the Deluxe Central control.

Convenient Installation Features

Ease of physical installation for the system.

Stable Data Storage and Backup

Data storage and backup capabilities.

System Scalability and Upgrade Options

System scalability and upgrade capabilities.

Deluxe Central Control Major Functions

Key functions of the Deluxe Central Control system.

System Control

General monitoring and control of air conditioners.

System Monitor

Checking the real-time status of all air conditioners.

System Set-up

Managing air conditioners through grouping and setup.

Time Schedule Setup

Setting weekly schedules for air conditioner operation.

System Configuration

Key specifications of the control system, CNU, and PI485.

Disassembly of the parts (Indoor unit)

Indoor Unit Disassembly Safety

General safety caution for disassembly.

Split Type Indoor Unit Disassembly

Steps for removing the grille and internal components of split type units.

Control Box Removal Procedure

Procedure for removing the control box.

Discharge Grille Removal Procedure

Procedure for removing the discharge grille.

Evaporator Removal Procedure

Procedure for removing the evaporator.

Cross-Flow Fan and Motor Removal

Procedure for removing the cross-flow fan and motor.

Art Cool Type Indoor Unit Disassembly

Disassembly steps for Art Cool Type indoor units.

Evaporator Removal Steps

Procedure for removing the evaporator.

Turbo Fan Removal Preparation

Steps before removing the turbo fan.

Motor Cover Removal Procedure

Procedure for removing the motor cover.

Art Cool Deluxe Type Indoor Unit Disassembly

Disassembly steps for Art Cool Deluxe Type indoor units.

Art Cool Deluxe Type SE Indoor Unit Disassembly

Disassembly steps for Art Cool Deluxe Type SE indoor units.

Control Box Removal Procedure

Procedure for removing the control box.

Discharge Grille Removal Procedure

Procedure for removing the discharge grille.

Evaporator Removal Procedure

Procedure for removing the evaporator.

Motor Cover Removal Procedure

Procedure for removing the motor cover.

Cross-Flow Fan Removal Procedure

Procedure for removing the cross-flow fan.

CVT Type VB Chassis Disassembly

Disassembly steps for CVT Type VB chassis units.

VE Chassis Disassembly Steps

Disassembly steps for VE chassis units.

Control Box Removal Steps

Procedure for removing the control box.

Discharge Grille Removal Steps

Procedure for removing the discharge grille.

Evaporator Removal Steps

Procedure for removing the evaporator.

Motor Cover Removal Steps

Procedure for removing the motor cover.

Cross-Flow Fan Removal Steps

Procedure for removing the cross-flow fan.

Air Guide, Crossflow Fan, and Motor Removal

Steps for removing air guide, crossflow fan, and motor.

Control Box Assembly Removal

Procedure for removing the control box assembly.

Front Panel Removal Procedure

Procedure for removing the front panel.

Diffuser Assembly Removal Procedure

Procedure for removing the diffuser assembly.

Display PCB Assembly Removal

Procedure for removing the display PCB assembly.

Vane and Step Motor Removal

Steps for removing vanes and step motor.

Drain Pan Assembly Removal

Procedure for removing the drain pan assembly.

Evaporator Removal Procedure

Procedure for removing the evaporator assembly.

Schematic Diagram

Electronic Control Device Schematic

Schematic diagram of the electronic control device.

Indoor Unit Schematic Diagram

Schematic diagram for the indoor unit.

Split Type Indoor Unit Schematic

Schematic diagram for Split Type indoor units.

Art Cool Type Indoor Unit Schematic

Schematic diagram for Art Cool Type indoor units.

Art Cool Deluxe Type A;C MOTOR Schematic

Schematic diagram for Art Cool Deluxe Type A/C MOTOR.

Art Cool Deluxe Type BLDC MOTOR Schematic

Schematic diagram for Art Cool Deluxe Type BLDC MOTOR.

Duct Type Indoor Unit Schematic

Schematic diagram for Duct Type indoor units.

Slim Duct B1, B2 Chassis Schematic

Schematic diagram for Slim Duct B1, B2 chassis.

Convertible Type Indoor Unit Schematic

Schematic diagram for Convertible Type indoor units.

VE Chassis AC Part Schematic

Schematic of the VE chassis AC part.

VB Chassis Schematic Diagram

Schematic diagram for VB chassis.

Outdoor Unit Schematic Diagrams

Schematic diagram for outdoor units.

A6 UW406 FA0 Outdoor Unit Schematic

Schematic diagram for the A6UW406FA0 outdoor unit.

Outdoor Unit Schematic Details

Outdoor unit schematic details for specific models.

Central Control Unit Schematic Diagram

Schematic diagram for the central control unit.

Indoor Unit Wiring Diagrams

Wiring diagram for Room Type indoor units.

Art Cool Type Indoor Unit Wiring Diagram

Wiring diagram for Art Cool Type indoor units.

Room Type Indoor Unit Wiring Diagrams

Wiring diagram for Room Type S4/S5 chassis units.

Duct Type Indoor Unit Wiring Diagrams

Wiring diagram for Duct Type BH/BP chassis units.

Art Cool Deluxe Type Motor Wiring Diagrams

Wiring diagrams for Art Cool Deluxe Type A/C and BLDC Motors.

Duct Type Indoor Unit Wiring Diagrams

Wiring diagrams for Duct Type BH/BP chassis.

CVT Type Indoor Unit Wiring Diagrams

Wiring diagrams for CVT Type VE chassis.

CVT Type Indoor Unit Wiring Diagrams

Wiring diagrams for CVT Type VB chassis.

CST Type Indoor Unit Wiring Diagrams

Wiring diagrams for CST Type TE/TF/TD chassis.

CST Type Indoor Unit Wiring Diagrams

Wiring diagrams for CST Type TE1 chassis.

CST Type Indoor Unit Wiring Diagrams

Wiring diagrams for CST Type TH chassis.

CST Type Indoor Unit Wiring Diagram

Wiring diagram for CST Type TC chassis.

CST Type Indoor Unit Wiring Diagram

Wiring diagram for CST Type TC1 chassis.

Art Cool Mirror SE Wiring Diagram

Wiring diagram for Art Cool Mirror SE units.

Slim Duct B1, B2 Chassis Wiring Diagram

Wiring diagram for Slim Duct B1, B2 chassis.

Outdoor Unit Wiring Diagrams

Wiring diagrams for various outdoor unit models.

A2 UW146 FA0, A2 UW146 FA1 Wiring Diagram

Wiring diagram for A2UW146FA0, A2UW146FA1 outdoor units.

A3 UW186 FA0, A3 UW186 FA1 Wiring Diagram

Wiring diagram for A3UW186FA0, A3UW186FA1 outdoor units.

A4 UW246 FA0 Wiring Diagram

Wiring diagram for A4UW246FA0 outdoor unit.

A7 UW486 FA0, A8 UW586 FA0 Wiring Diagram

Wiring diagram for A7UW486FA0, A8UW586FA0 outdoor units.

A2 UW146 FA2, A2 UW166 FA0;1 Wiring Diagram

Wiring diagram for A2UW146FA2, A2UW166FA0/1 outdoor units.

Components Locations

Indoor Unit Component Locations

Component locations for indoor units.

Split Type Indoor Unit Components

Component locations for split type indoor units.

DC Part Component Locations

Component locations for the DC part of the indoor unit.

AC Part Component Locations

Component locations for the AC part of the indoor unit.

Art Cool Type Component Locations

Component locations for Art Cool Type indoor units (Top and Bottom views).

Art Cool Deluxe Type A;C MOTOR Components

Component locations for Art Cool Deluxe Type A/C MOTOR.

Art Cool Deluxe Type BLDC MOTOR Components

Component locations for Art Cool Deluxe Type BLDC MOTOR.

Duct Type Component Locations

Component locations for Duct Type indoor units (BH/BG and BP chassis).

Duct Type Low Static Component Locations

Component layout for low static Duct Type BT, BT1 chassis.

Duct Type Low Static Component Locations

Component layout for low static Duct Type B1, B2 chassis.

Cassette Type 1 Way Component Locations

Component locations for Cassette Type - 1 way (TC chassis).

Cassette Type 1 Way Component Locations

Component locations for 1-way Cassette TC1 chassis.

Cassette Type 4 Way Component Locations

Component locations for 4-way Cassette TE/TF/TD chassis.

Cassette Type 4 Way Component Locations

Component locations for 4-way Cassette TE1/TH chassis.

Convertible Type Component Locations

Component locations for Convertible Type indoor units.

VE Chassis Component Locations

Component locations for VE chassis AC and DC parts.

VB Chassis Component Locations

Component locations for VB chassis.

VB Chassis Component Locations (Views)

Component locations for VB chassis (Top and Bottom views).

Display Assembly Component Locations

Component locations for display assemblies.

Split Type Display Assembly Components

Component locations for Display Assembly of Split Type.

Convertible Type Display Assembly Components

Component locations for Display Assembly of Convertible Type.

VE Chassis Display Components

Component locations for VE chassis display.

VB Chassis Display Components

Component locations for VB chassis display.

Art Cool Type Display Components

Component locations for Art Cool Type display.

Art Cool Deluxe Type Display Components

Component locations for Art Cool Deluxe Type display.

Art Cool Mirror Display Components

Component locations for Art Cool Mirror display.

Outdoor Unit Component Locations

Component locations for outdoor units.

Outdoor Unit Component Side Layout

Component layout on the component side of the outdoor PCB.

Outdoor Unit Solder Side Layout

Component layout on the solder side of the outdoor PCB.

Central Control PCB Component Locations

Component locations for the central control PCB.

Central Control PCB Top View Components

Component layout on the top view of the central control PCB.

Central Control PCB Bottom View Components

Component layout on the bottom view of the central control PCB.

SUB P.W.B ASSEMBLY Component Locations

Component locations for the SUB P.W.B ASSEMBLY.

Art Cool Type SUB P.W.B Components

Component locations for Art Cool Type SUB P.W.B.

Troubleshooting Guide

Refrigeration Cycle Diagram

Refrigeration cycle diagram for A2UW146FA0/1/2, A2UW166FA0/1, etc.

A3 UW246 FA0, A4 UW246 FA0 Refrigeration Cycle

Refrigeration cycle diagram for A3UW246FA0, A4UW246FA0 models.

A4 UW306 FA0 Refrigeration Cycle Diagram

Refrigeration cycle diagram for A4UW306FA0 model.

A4 UW306 FA1 Refrigeration Cycle Diagram

Refrigeration cycle diagram for A4UW306FA1 model.

A6 UW406 FA0 Refrigeration Cycle Diagram

Refrigeration cycle diagram for A6UW406FA0 model.

A7 UW486 FA0, A8 UW566 FA0 Refrigeration Cycle

Refrigeration cycle diagram for A7UW486FA0, A8UW566FA0 models.

BD Unit Refrigeration Cycle Diagram

Refrigeration cycle diagram for BD Units.

Self-diagnosis Function Overview

Explanation of indoor and outdoor error indicators.

Indoor Unit Error Codes

List of indoor unit error codes and their meanings.

Outdoor Unit Error Codes

Error codes and descriptions for outdoor unit self-diagnosis.

Refrigeration Cycle Trouble Analysis

Analysis of common refrigeration cycle troubles.

Electronic Parts Troubleshooting Guide

Troubleshooting steps for product not operating at all.

Troubleshooting Remote Control Issues

Troubleshooting steps when the remote controller is not working.

Troubleshooting Compressor;Outdoor Fan Issues

Troubleshooting steps when compressor or outdoor fan do not operate.

Troubleshooting Indoor Fan Operation

Troubleshooting steps when the indoor fan does not operate.

Troubleshooting Louver Operation

Troubleshooting steps when the louver does not operate.

General Information on Errors

Explanation of indoor error indicators.

Indoor Unit Error Codes

List of indoor unit error codes and their meanings.

Outdoor Unit Error Indicators

Outdoor error codes and their meanings, including LED indicators.

Outdoor Unit Error Indicators (Continued)

Further outdoor unit error codes and their meanings.

Troubleshooting Sensor Errors (CH01, CH02, CH06)

Troubleshooting steps for specific error codes related to sensors.

Troubleshooting Communication Errors (CH03)

Troubleshooting steps for communication errors.

Troubleshooting Drain Pump Errors (CH04)

Troubleshooting steps for drain pump or float switch issues.

Troubleshooting Communication Errors (CH05, CH53)

Troubleshooting steps for communication errors between indoor and outdoor units.

Troubleshooting DC Peak Errors (CH21)

Troubleshooting steps for DC Peak errors, including IPM and compressor checks.

Troubleshooting Current Errors (CH22)

Troubleshooting steps for C/T internal circuit or current errors.

Troubleshooting DC Link Voltage Errors (CH23, CH28)

Troubleshooting steps for DC Link voltage errors.

Troubleshooting Switch and Voltage Errors (CH24, CH25)

Troubleshooting steps for press switch and input voltage errors.

Troubleshooting Compressor Position and PSC Fault (CH26, CH27)

Troubleshooting steps for compressor position and PSC fault errors.

Troubleshooting Pipe Temperature Errors (CH32, CH33)

Troubleshooting steps for pipe temperature errors.

Troubleshooting Sensor Errors (CH41, CH44-CH47, CH65)

Troubleshooting steps for sensor errors (pipe, air, heat sink).

Troubleshooting Over Capacity and EEPROM Errors (CH51, CH60)

Troubleshooting steps for over capacity and EEPROM errors.

Troubleshooting High Temperature Errors (CH61, CH62)

Troubleshooting steps for high temperature errors in condenser and heat sink.

(3-way) Valve Operations

3-way Valve Positions and Ports

Shaft positions and service ports for 3-way valves (liquid and gas sides).

Pumping Down Procedure

Procedure for pumping down the system using 3-way valves.

Evacuation Procedure

Procedure for evacuating the system (removing air and moisture).

Gas Charging Procedure

Procedure for charging the system with refrigerant.

Exploded View & Replacement Parts List

Indoor Unit Exploded View (SQ;SR Chassis)

Exploded view of the indoor unit for SQ/SR chassis.

Parts List (SQ, SR Chassis)

Replacement parts list for SQ, SR chassis indoor units.

ST Chassis Indoor Unit Exploded View

Exploded view of the ST chassis indoor unit.

Parts List (ST Chassis)

Replacement parts list for ST chassis indoor units.

S4, S5 Chassis Indoor Unit Exploded View

Exploded view of S4, S5 chassis indoor units.

Parts List (S4, S5 Chassis)

Replacement parts list for S4, S5 chassis indoor units.

SP1 Chassis Indoor Unit Exploded View (Art Cool Type)

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

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

Replacement parts list for Art Cool Deluxe Type A/C Motor units.

Art Cool Deluxe Type SU, SZ, S3 Chassis Exploded View (A;C Motor)

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

Parts List (Art Cool Deluxe Type BLDC)

Replacement parts list for Art Cool Deluxe Type BLDC units.

Art Cool Deluxe Type SU, SZ, S3 Chassis Exploded View (BLDC Motor)

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

Parts List (Art Cool Deluxe Type BLDC)

Replacement parts list for Art Cool Deluxe Type BLDC units.

Convertible Type VE Chassis Exploded View

Exploded view of Convertible Type VE chassis units.

Parts List (Convertible Type-VE Chassis)

Replacement parts list for Convertible Type VE chassis units.

Duct Type Low Static B1 Chassis Exploded View

Exploded view of Duct Type Low Static B1 chassis.

Parts List (Duct Type - Low Static) B1

Replacement parts list for Duct Type Low Static B1 chassis.

Duct Type Low Static B2 Chassis Exploded View

Exploded view of Duct Type Low Static B2 chassis.

Parts List (Duct Type - Low Static) B2

Replacement parts list for Duct Type Low Static B2 chassis.

Duct Type High Static Chassis Exploded View

Exploded view of Duct Type High Static chassis.

Parts List (Duct Type - High Static)

Replacement parts list for Duct Type High Static chassis.

Duct Type Low Static BT, BT1 Chassis Exploded View

Exploded view of Duct Type Low Static BT, BT1 chassis.

Parts List (Duct Type - Low Static)

Replacement parts list for Duct Type Low Static chassis.

Built in Duct type BP Chassis Exploded View

Exploded view of Built in Duct type BP chassis.

Parts List (Built in Duct Type-BP chassis)

Replacement parts list for Built in Duct Type BP chassis.

Cassette Type 1 way TC1 Chassis Exploded View

Exploded view of Cassette Type 1 way TC1 chassis.

Parts List (Cassette Type - 1 way)

Replacement parts list for Cassette Type 1 way units.

Cassette Type 1 way TC Chassis Exploded View

Exploded view of Cassette Type 1 way TC chassis.

Parts List (Cassette Type - 1 way)

Replacement parts list for Cassette Type 1 way units.

Cassette Type 4 way TE(1) Chassis Exploded View

Exploded view of Cassette Type 4 way TE(1) chassis.

Cassette Type 4 way Chassis Exploded View

Exploded view of Cassette Type 4 way chassis components.

Parts List (Cassette Type - 4 way - TE(1) 9 K, 12 K, 18 K)

Replacement parts list for Cassette Type 4 way TE(1) units.

Cassette Type 4 way TF Chassis Exploded View

Exploded view of Cassette Type 4 way TF chassis.

Cassette Type 4 way Chassis Exploded View

Exploded view of Cassette Type 4 way chassis components.

Parts List (Cassette Type - 4 way - TF 24 K, 30 K)

Replacement parts list for Cassette Type 4 way TF units.

Cassette Type 4 way TH Chassis Exploded View

Exploded view of Cassette Type 4 way TH chassis.

Cassette Type 4 way Chassis Exploded View

Exploded view of Cassette Type 4 way chassis components.

Parts List (Cassette Type - 4 way - TH)

Replacement parts list for Cassette Type 4 way TH chassis.

Cassette Type 4 way TD Chassis Exploded View

Exploded view of Cassette Type 4 way TD chassis.

Cassette Type 4 way Chassis Exploded View

Exploded view of Cassette Type 4 way chassis components.

Parts List (Cassette Type - 4 way - TD 36 K)

Replacement parts list for Cassette Type 4 way TD chassis.

Convertible Type VE Chassis Exploded View

Exploded view of Convertible Type VE chassis units.

Parts List (Convertible Type-VE Chassis)

Replacement parts list for Convertible Type VE chassis units.

Convertible Type VB Chassis Exploded View

Exploded view of Convertible Type VB chassis units.

Parts List (Convertible Type-VB Chassis)

Replacement parts list for Convertible Type VB chassis units.

Outdoor Unit Exploded View

Exploded view of outdoor units.

Outdoor Unit Models A2 UW146 FA2, A2 UW166 FA0, A2 UW166 FA1

Exploded view of specific outdoor unit models.

Outdoor Unit Models A2 UW146 FA0, A2 UW186 FA0, A3 UW186 FA1

Exploded view of specific outdoor unit models.

Outdoor Unit Models A2 UW146 FA1, A2 UW186 FA0, A3 UW186 FA0

Exploded view of specific outdoor unit models.

Parts List (Single Compressor Inverter)

Replacement parts list for single compressor inverter outdoor units.

Outdoor Unit Parts List (Single Compressor Inverter)

Detailed parts list for single compressor inverter outdoor units.

Outdoor Unit Models A3 UW246 FA0, A4 UW246 FA0 - TPS Inverter

Exploded view of specific outdoor unit models.

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

Replacement parts list for TPS Inverter outdoor units.

Outdoor Unit Models A4 UW306 FA0, A4 UW306 FA1

Exploded view of A4UW306FA0, A4UW306FA1 outdoor units.

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

Replacement parts list for TPS Inverter outdoor units.

Outdoor Unit Model A6 UW406 FA0 Exploded View

Exploded view of A6UW406FA0 outdoor unit.

Parts List (A6 UW406 FA0 - TPS Inverter)

Replacement parts list for TPS Inverter outdoor units.

LG A6UW406FA0 Specifications

General IconGeneral
BrandLG
ModelA6UW406FA0
CategoryAir Conditioner
LanguageEnglish

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