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LG AUUH368A User Manual

LG AUUH368A
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LG
Universal System
Air Conditioner
SERVICE MANUAL
LG
CAUTION
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
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LG AUUH368A Specifications

General IconGeneral
BrandLG
ModelAUUH368A
CategoryAir Conditioner
LanguageEnglish

Summary

Models List

Cooling Only

Lists LG air conditioner models for cooling-only applications.

Heat Pump

Lists LG air conditioner models for heat pump applications.

Model Number Nomenclature

Indoor Units

Explains the structure and meaning of indoor unit model numbers.

Decoration panel (For Ceiling Cassette Models)

Details the nomenclature for decoration panels of ceiling cassette models.

Outdoor Units

Explains the structure and meaning of outdoor unit model numbers.

Safety Precautions

Installation Safety

Provides crucial safety guidelines for installing the air conditioner unit.

Operational Safety

Outlines essential safety precautions for operating the air conditioner.

Features & Benefits

Environment Friendly Refrigerant

Highlights the use of environmentally friendly refrigerant.

Jet Cool

Describes the Jet Cool mode for rapid cooling.

Energy Saving Gold Fin

Explains the benefits of the Energy Saving Gold Fin technology.

Plasma Air Purifier

Details the Plasma Air Purifier feature for air quality improvement.

Group Control

Explains the Group Control capability for multiple units.

Central Control

Describes the Central Control system for managing multiple units.

Swirl Swing (For Ceiling Cassette)

Explains the Swirl Swing function for ceiling cassette models.

Space Control (For Ceiling Cassette)

Details the Space Control feature for ceiling cassette models.

Auto Restart Operation

Describes the Auto Restart Operation feature after power failure.

Two Thermistor Control

Explains the Two Thermistor Control system for temperature management.

Auto Changeover

Details the Auto Changeover function between cooling and heating.

Defrost / Deicing

Explains the Defrost and Deicing function in heating mode.

Low Ambient Control

Describes the Low Ambient Control for operation in cold conditions.

High Ceiling Operation (For Ceiling Cassette)

Explains high ceiling operation adjustments for cassette models.

Water Drain Pump

Details the functionality of the Water Drain Pump.

Time Delay Safety Function

Explains the Time Delay Safety Function for compressor protection.

Zero Standby Power

Highlights the Zero Standby Power feature for energy saving.

Child Lock Function

Describes the Child Lock Function to prevent accidental operation.

Zone Control

Explains the Zone Control feature for temperature management by zone.

Tele Control

Details the Tele Control feature for remote operation via telephone.

E.S.P. Control

Explains the E.S.P. Control for regulating air volume.

Electric Heater

Describes the Electric Heater function for additional heating.

Self Diagnosis Function

Explains the Self Diagnosis Function for error detection.

List of Functions

Ceiling Cassette

Lists functions available for Ceiling Cassette indoor units.

Ceiling Concealed Duct

Lists functions available for Ceiling Concealed Duct indoor units.

Ceiling & Floor

Lists functions available for Ceiling & Floor indoor units.

Function of Remote Control

Wireless LCD Remote Control (Ceiling & Floor models)

Describes the functions of the wireless LCD remote for floor/ceiling models.

Wireless LCD Remote Control (Ceiling Cassette models)

Details the functions of the wireless LCD remote for ceiling cassette models.

Wireless LCD Remote Control (Ceiling Concealed Duct models)

Explains the functions of the wireless LCD remote for concealed duct models.

Wireless LCD Remote Control (Ceiling Cassette models)

Provides further details on wireless LCD remote functions for cassette models.

Wired LCD Remote Control (Ceiling Concealed Duct models)

Describes the functions of the wired LCD remote for concealed duct models.

Specifications

Cooling Only Nominal 1.5 Ton

Provides detailed technical specifications for 1.5 Ton Cooling Only models.

Nominal 2 Ton Cooling Only

Lists detailed technical specifications for 2 Ton Cooling Only models.

Nominal 2.5 Ton Cooling Only

Details technical specifications for 2.5 Ton Cooling Only models.

Nominal 3 Ton Cooling Only

Provides technical specifications for 3 Ton Cooling Only models.

Nominal 4 Ton Cooling Only

Lists technical specifications for 4 Ton Cooling Only models.

Nominal 5 Ton Cooling Only

Details technical specifications for 5 Ton Cooling Only models.

Heat Pump Nominal 1.5 Ton

Provides detailed technical specifications for 1.5 Ton Heat Pump models.

Heat Pump Nominal 2 Ton

Lists detailed technical specifications for 2 Ton Heat Pump models.

Heat Pump Nominal 3 Ton

Details technical specifications for 3 Ton Heat Pump models.

Heat Pump Nominal 4 Ton

Provides technical specifications for 4 Ton Heat Pump models.

Heat Pump Nominal 5 Ton

Lists technical specifications for 5 Ton Heat Pump models.

Dimensional Drawings

Indoor Units - Ceiling Cassette Type

Shows dimensional drawings for indoor Ceiling Cassette units (ATNC-EL, ATNH-EL).

Indoor Units - Ceiling Cassette Type (ATNC-FL, ATNH-FL)

Provides dimensional drawings for ATNC-FL and ATNH-FL Ceiling Cassette units.

Indoor Units - Ceiling Cassette Type (ATNC-DL, ATNH-DL)

Shows dimensional drawings for ATNC-DL and ATNH-DL Ceiling Cassette units.

Indoor Units - Ceiling Concealed Duct Type

Displays dimensional drawings for Ceiling Concealed Duct indoor units.

Indoor Units - Ceiling & Floor Type

Provides dimensional drawings for Ceiling & Floor indoor units.

Outdoor Units - AUUC186A/AB

Shows dimensional drawings for AUUC186A/AB outdoor units.

Outdoor Units - AUUH186A/AB, AUUC246A/AB

Displays dimensional drawings for AUUH186A/AB and AUUC246A/AB outdoor units.

Outdoor Units - AUUH246A/AB, AUUC306A/AB, AUUH306A/AB

Shows dimensional drawings for AUUH246A/AB, AUUC306A/AB, AUUH306A/AB outdoor units.

Outdoor Units - AUUC368A/AB, AUUH368A/AB

Provides dimensional drawings for AUUC368A/AB and AUUH368A/AB outdoor units.

Outdoor Units - AUUC488A/AB, AUUH488A/AB, AUUC608A/AB, AUUH608A/AB

Shows dimensional drawings for AUUC488A/AB, AUUH488A/AB, AUUC608A/AB, AUUH608A/AB outdoor units.

Wiring Diagrams

Indoor Unit - Ceiling Cassette Type / Cooling Only

Presents wiring diagrams for indoor Ceiling Cassette Cooling Only units.

Indoor Unit - Ceiling Cassette Type / Heat Pump

Shows wiring diagrams for indoor Ceiling Cassette Heat Pump units.

Indoor Unit - Ceiling Concealed Duct Type / Cooling Only

Presents wiring diagrams for indoor Concealed Duct Cooling Only units.

Indoor Unit - Ceiling Concealed Duct Type / Heat Pump

Shows wiring diagrams for indoor Concealed Duct Heat Pump units.

Indoor Unit - Ceiling & Floor Type (Cooling Only & Heat Pump)

Provides wiring diagrams for Indoor Ceiling & Floor units (Cooling/Heat Pump).

Outdoor Unit - Cooling Only

Presents wiring diagrams for outdoor Cooling Only units.

Outdoor Unit - Heat Pump

Shows wiring diagrams for outdoor Heat Pump units.

Outdoor Unit - Cooling Only (Variations)

Displays alternative wiring diagrams for outdoor Cooling Only units.

Outdoor Unit - Heat Pump (Variations)

Displays alternative wiring diagrams for outdoor Heat Pump units.

Refrigerant Cycle Diagrams

Cooling Only Models

Illustrates the refrigerant cycle for cooling-only models.

Heat Pump Models

Illustrates the refrigerant cycle for heat pump models.

Electrical Data

Operation Range

Inlet air temperature (Cooling)

Specifies the operating range for inlet air temperature during cooling.

Inlet air temperature (Heating)

Specifies the operating range for inlet air temperature during heating.

Power Source Voltage

Details the acceptable power source voltage and starting conditions.

External Static Pressure & Air Flow

Ceiling Concealed Duct (ABNC-EL, ABNH-EL Models)

Presents external static pressure and air flow data for specific duct models.

Ceiling Concealed Duct (ABNC-HL/GL, ABNH-HL/GL Models) - ESP Setting

Explains ESP setting for concealed duct models and provides guidelines.

Installation

Indoor Unit Location Selection

Guidelines for selecting the optimal location for indoor unit installation.

Outdoor Unit Installation & Settlement

Instructions for installing and settling the outdoor unit securely.

Indoor Unit Installation - Ceiling Cassette Type

Step-by-step guide for installing indoor Ceiling Cassette units.

Indoor Unit Installation - Ceiling Concealed Duct Type

Instructions for installing indoor Ceiling Concealed Duct units.

Indoor Unit Installation - Ceiling Concealed Duct Type (CASE 2)

Specific installation instructions for Ceiling Concealed Duct units, Case 2.

Indoor Unit Installation - Ceiling & Floor Type (Ceiling)

Guide for installing indoor Ceiling & Floor units on the ceiling.

Indoor Unit Installation - Ceiling & Floor Type (Wall)

Instructions for installing indoor Ceiling & Floor units on the wall.

Indoor Unit Installation - Ceiling & Floor Type (Floor)

Guide for installing indoor Ceiling & Floor units on the floor.

Wiring Connection

Details on connecting the wiring for the air conditioner system.

Decoration Panel Installation

Instructions for installing the indoor unit's decoration panel.

Heat Insulation and Pipings

Guidance on applying heat insulation and forming refrigerant pipings.

Drain Pipe Work - Ceiling Cassette

Instructions for drain pipe installation for Ceiling Cassette units.

Drain Pipe Work - Ceiling Concealed Duct

Instructions for drain pipe installation for Concealed Duct units.

Optional Operation - Two Thermistor System

Configuration of the Two Thermistor System for temperature control.

Optional Operation - Adjusting Air Volume by Ceiling Height

Adjusting air volume based on ceiling height for cassette models.

Optional Operation - Group Control

Explains setting up Group Control for multiple indoor units.

Optional Operation - Plasma Air Cleaner Installation

Instructions for installing the optional Plasma Air Cleaner.

Service Parts List

Lists available service parts with their part numbers.

Dimension

Provides dimension details for various unit components.

Electronic Control Device

Main P.C.B ASM - Ceiling Cassette Type

Diagram of the Main PCB Assembly for Ceiling Cassette units.

PCB Assembly - Ceiling Duct Type

Diagram of the PCB Assembly for Ceiling Duct units.

PCB Assembly - Ceiling & Floor Type

Diagram of the PCB Assembly for Ceiling & Floor units.

Schematic Diagram

Ceiling Cassette Type

Electrical schematic diagram for Ceiling Cassette units.

Ceiling Duct Type(BG Series)

Electrical schematic diagram for Ceiling Duct (BG Series) units.

Ceiling Duct Type(BH, BE Series)

Electrical schematic diagram for Ceiling Duct (BH, BE Series) units.

Ceiling & Floor Type

Electrical schematic diagram for Ceiling & Floor units.

Exploded View and Replacement Parts List

Indoor Unit - Ceiling Cassette Type (ATNC-EL, ATNH-EL)

Exploded view of indoor Ceiling Cassette units (ATNC-EL, ATNH-EL).

Indoor Unit - Ceiling Cassette Type (Internal Components)

Exploded view of internal components for Ceiling Cassette units.

Parts List - Indoor Unit (Ceiling Cassette Type)

Replacement parts list for Indoor Ceiling Cassette units.

Indoor Unit - Ceiling Cassette Type (ATNC-FL, ATNH-FL)

Exploded view of indoor Ceiling Cassette units (ATNC-FL, ATNH-FL).

Indoor Unit - Ceiling Cassette Type (Internal Components)

Exploded view of internal components for Ceiling Cassette units.

Parts List - Indoor Unit (Ceiling Cassette Type)

Replacement parts list for Indoor Ceiling Cassette units.

Parts List - Indoor Unit (Ceiling Cassette Type)

Replacement parts list for Indoor Ceiling Cassette units.

Indoor Unit - Ceiling Cassette Type (ATNC-DL, ATNH-DL)

Exploded view of indoor Ceiling Cassette units (ATNC-DL, ATNH-DL).

Indoor Unit - Ceiling Cassette Type (Internal Components)

Exploded view of internal components for Ceiling Cassette units.

Parts List - Indoor Unit (Ceiling Cassette Type)

Replacement parts list for Indoor Ceiling Cassette units.

Parts List - Indoor Unit (Ceiling Cassette Type)

Replacement parts list for Indoor Ceiling Cassette units.

Indoor Unit - Ceiling Concealed Duct Type

Exploded view of indoor Ceiling Concealed Duct units.

Parts List - Indoor Unit (Ceiling Concealed Duct Type)

Replacement parts list for Indoor Ceiling Concealed Duct units.

Parts List - Indoor Unit (Ceiling Concealed Duct Type)

Replacement parts list for Indoor Ceiling Concealed Duct units.

Indoor Unit - Ceiling Concealed Duct Type (ABNC-EL, ABNH-EL)

Exploded view of indoor Ceiling Concealed Duct units (ABNC-EL, ABNH-EL).

Parts List - Indoor Unit (Ceiling Concealed Duct Type)

Replacement parts list for Indoor Ceiling Concealed Duct units.

Indoor Unit - Ceiling & Floor Type (AVNC-BL, AVNH-BL)

Exploded view of indoor Ceiling & Floor units (AVNC-BL, AVNH-BL).

Parts List - Indoor Unit (Ceiling & Floor Type)

Replacement parts list for Indoor Ceiling & Floor units.

Parts List - Indoor Unit (Ceiling & Floor Type)

Replacement parts list for Indoor Ceiling & Floor units.

Outdoor Units - AUUC186A/AB

Exploded view of AUUC186A/AB outdoor units.

Outdoor Units - AUUH186A/AB, AUUC246A/AB

Exploded view of AUUH186A/AB and AUUC246A/AB outdoor units.

Outdoor Units - AUUH246A/AB, AUUC306A/AB, AUUH306A/AB

Exploded view of AUUH246A/AB, AUUC306A/AB, AUUH306A/AB outdoor units.

Parts List - Outdoor Units

Replacement parts list for Outdoor Units.

Parts List - Outdoor Units

Replacement parts list for Outdoor Units.

Parts List - Outdoor Units

Replacement parts list for Outdoor Units.

Outdoor Units - AUUC368A/AB, AUUH368A/AB

Exploded view of AUUC368A/AB and AUUH368A/AB outdoor units.

Outdoor Units - AUUC488A/AB, AUUH488A/AB, AUUC608A/AB, AUUH608A/AB

Exploded view of AUUC488A/AB, AUUH488A/AB, AUUC608A/AB, AUUH608A/AB outdoor units.

Parts List - Outdoor Units

Replacement parts list for Outdoor Units.

Parts List - Outdoor Units

Replacement parts list for Outdoor Units.

Parts List - Outdoor Units

Replacement parts list for Outdoor Units.

Indoor Unit Exploded Views - PT-HEA/C, PT-CEA/C

Exploded views of indoor units for PT-HEA/C and PT-CEA/C models.

Indoor Unit Exploded Views - PT-HFA/C, PT-CFA/C

Exploded views of indoor units for PT-HFA/C and PT-CFA/C models.

Indoor Unit Exploded Views - PT-HDA/C, PT-CDA/C

Exploded views of indoor units for PT-HDA/C and PT-CDA/C models.

Parts List - Indoor Unit (Various Models)

Replacement parts list for various indoor unit models.

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