LG Electronics A2UH243FA0(LMU240HE), AMNH123APM0(LMAN120HNS) Safety Precautions, Installation

LG Electronics A2UC243FA0 (LMU240CE) service manual Multi Type Air Conditioner, Indoor Unit Room Type Art Cool Type
LG Electronics AMNH123DEA0 (LMN120HE), AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) service manual Table of Contents
LG Electronics AMNC093APM0(LMAN090CNS), AMNH123APM0(LMAN120HNS) Model Number Nomenclature, Indoor Unit, Outdoor Unit
LG Electronics AMNC123DEA0 (LMN120CE), AMNH123APM0(LMAN120HNS) service manual Symbols Used in this Manual, Combination table
LG Electronics A2UH243FA0(LMU240HE) Safety Precautions, Installation, Be sure not to do Be sure to follow the instruction
LG Electronics AMNH093APM0(LMAN090HNS) Operation, Do not place anything on the power cable, Be cautious when unpacking
LG Electronics AMNH123APM0(LMAN120HNS) Do not allow water to run into electric parts, Smoke comes from product
LG Electronics A2UC243FA0 (LMU240CE) When the product is soaked, Not enter the product, Flooded or submerged, contact
LG Electronics AMNH123DEA0 (LMN120HE) service manual Operational, Air flow, Vents, etc, Not use harsh detergents, sol
LG Electronics AMNC093APM0(LMAN090CNS) Do not step on or put anyting on the product. outdoor units, Sary Operated, Product
LG Electronics AMNC123DEA0 (LMN120CE), AMNH123APM0(LMAN120HNS) service manual Dimensions, Indoor Unit, Split Type Indoor
LG Electronics A2UH243FA0(LMU240HE), AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE), AMNH123DEA0 (LMN120HE) Outdoor Unit
LG Electronics AMNH093APM0(LMAN090HNS), AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) Product Specifications, Indoor Unit
LG Electronics AMNH123APM0(LMAN120HNS) Outdoor Unit Multiple piping models, Model A2UC243FA0LMU240CE A2UH243FA0LMU240HE
LG Electronics A2UC243FA0 (LMU240CE), AMNH123APM0(LMAN120HNS) service manual Installation Parts, Installation Tools
LG Electronics AMNH123DEA0 (LMN120HE), A2UC243FA0 (LMU240CE) Select the best location, Outdoor unit, Rooftop Installations LG Electronics AMNC093APM0(LMAN090CNS), AMNH123APM0(LMAN120HNS) Piping length and elevation, Multi Piping Type, 24k LG Electronics AMNC123DEA0 (LMN120CE), AMNH123APM0(LMAN120HNS), A2UH243FA0(LMU240HE) Fixing Installation PlateStandard Type LG Electronics A2UH243FA0(LMU240HE) service manual Preparing work for Installation Artcool Type Only, Open panel front LG Electronics AMNH093APM0(LMAN090HNS), AMNH123APM0(LMAN120HNS) Sticking the installation guide map and fixing Indoor unit LG Electronics AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) Flaring Work and Connection of Piping, Flaring work LG Electronics A2UC243FA0 (LMU240CE), AMNH123APM0(LMAN120HNS), AMNH123DEA0 (LMN120HE) Connecting the Piping, Check, Indoor LG Electronics AMNH123DEA0 (LMN120HE), A2UC243FA0 (LMU240CE) Wrap the insulation material around the connecting por- tion LG Electronics AMNC093APM0(LMAN090CNS), AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) service manual For left rear piping LG Electronics AMNC123DEA0 (LMN120CE), AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) service manual Connection Indoor LG Electronics A2UH243FA0(LMU240HE), AMNH123APM0(LMAN120HNS) Panel AssemblyArt Cool Type only, Drive two screws LG Electronics AMNH093APM0(LMAN090HNS), AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) service manual Good case, Bad case LG Electronics AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE), AMNH123DEA0 (LMN120HE) Remote Control Preparationoptional
Page 5

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

WARNING This symbol indicates the possibility of death or serious injury.

CAUTION This symbol indicates the possibility of injury or damage to properties only.

■Meanings of symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

WARNING

■Installation

Do not use a defective or under- rated circuit breaker. Use this appliance on a dedicated circuit.

•There is risk of fire or electric shock.

For electrical work, contact the

Always ground the product.

dealer, seller, a qualified electrician,

 

or an Authorized Service Center.

 

• Do not disassemble or repair the

• There is risk of fire or electric

product. There is risk of fire or

shock.

electric shock.

 

Install the panel and the cover

Always install a dedicated cir-

of control box securely.

cuit and breaker.

• There is risk of fire or electric

• Improper wiring or installation may

shock.

cause fire or electric shock

Use the correctly rated break- er or fuse.

•There is risk of fire or electric shock.

Service Manual 5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Indoor Unit Room Type Art Cool Type Multi Type Air ConditionerTable of Contents Outdoor Unit Model Number NomenclatureIndoor Unit Combination table Symbols Used in this ManualInstallation Safety PrecautionsBe sure not to do Be sure to follow the instruction Control box securely Cuit and breakerBe cautious when unpacking Do not place anything on the power cableBe sure the installation area does not deteriorate with age OperationDo not allow water to run into electric parts Nect the power supply cableSmoke comes from product Hurricane arrivesInstall the drain hose to ensure that Keep level even when When the product is soakedInstalling the product Not enter the productAir flow OperationalVents, etc Not use harsh detergents, solWhen cleaning or maintaining Ly. Clean the filter every twoDo not step on or put anyting on the product. outdoor units Do not drink the water drained from the productSplit Type Indoor DimensionsIndoor Unit Outdoor Unit Indoor Unit Product SpecificationsModel A2UC243FA0LMU240CE A2UH243FA0LMU240HE Outdoor Unit Multiple piping modelsInstallation Tools InstallationInstallation Parts Outdoor unit Rooftop InstallationsSelect the best location 24k Piping length and elevationMulti Piping Type Fixing Installation PlateStandard Type Open panel front Preparing work for Installation Artcool Type OnlyRemove cover pipe and cover side Drain hose junctionPut an Installation Guide Map on the desired surface Sticking the installation guide map and fixing Indoor unitDrill a hole in the wall Drive the fore plastic anchors into drilled pointsFlaring work Flaring Work and Connection of PipingIndoor Connecting the PipingCheck Wrap the insulation material around the connecting por- tion For left rear piping Connection Indoor Drive two screws Panel AssemblyArt Cool Type onlyBad case Good caseRemote Control Preparationoptional Outdoor unit OutdoorConnect the cable to the Indoor unit Connecting the Cable between Indoor Unit and Outdoor UnitOutdoor unit Connect the cable to the Outdoor unitHow to connect wiring to the terminals Connection method of the connecting cableExampleAttach the Grille onto the cabinet Drain piping Checking the drainageTo check the drainage Forming the piping Checking method Air Purging and EvacuationPreparation Leakage testFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Additional ChargingSplit, Art Cool Type Test RunningSoft Dry Operation Mode Cooling Mode OperationHeating Mode Operation OperationFuzzy Operation for Cooling Defrost ControlHeatingFuzzy Operation Off-Timer Operation On-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationSleep Timer Operation Off-Timer = On-Timer OperationChaos Swing Mode Chaos Natural Wind ModeBuzzer Sounding Operation Forced OperationSplit Type Indoor Unit Function of Indoor UnitArt Cool Type Indoor Unit IndicatorOperation DefrostDeice control HeatingFunction of Outdoor Unit 15 2nd F Button Remote Control OperationCooling Model , Heat Pump Model To remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover To remove the Control Box To remove the Motor To remove the EvaporatorBefore removing the Turbo Fan Split Type Schematic DiagramElectronic Control Device Outdoor TMP87CM41F RY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Art Cool Type Indoor Unit Wiring DiagramBottom View Components LocationsArt Cool Type Schematic Diagram Component side Solder side Refrigeration Cycle Diagram Troubleshooting GuideA2UH243FA0LMU240HE A2UC243FA0 LMU240CEOutdoor Error Indoor ErrorError Indicator Self-diagnosis FunctionTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are dont operateNector Trouble 4 When indoor Fan does not operateTroubleshooting Guide Check Point Error CodeIndoor air sensor Indoor inlet pipe sensorCommunication line is shorted at GND Power input AC 230V.Outdoor, IndoorError Title Cause of error Check point & Normal condition Outdoor air sensor Title Cause of error Check point & Normal conditionCondensor pipe sensor Pipe sensorWay Valve Liguid Side Way, 3-way ValvePumping down ProcedureAir purging of the charge hose Set the liquid side valve to the closed positionAll amount of refrigerant leaked Mount the valve caps and the service port capsEvacuation Gas Charging Mount the valve stem nuts and the service port nutAfter Evacuation Connect the gauge to the charging cylinderS4, SE chassis Exploded View & Replacement Parts ListLMN090HE Parts List S4, SE chassisS4 chassis SE chassis SP3 Chassis Art Cool Type Filter ASSEMBLY,AIR Cleaner Parts List SP3 chassisA2UC243FA0 LMU240CE Description Parts List A2UH243FA0LMU240HE, A2UC243FA0 LMU240CELocation April No A20462Z

AMNC093APM0(LMAN090CNS), AMNH123DEA0 (LMN120HE), A2UC243FA0 (LMU240CE), AMNH123APM0(LMAN120HNS), A2UH243FA0(LMU240HE) specifications

LG Electronics has established a prominent position in the HVAC (heating, ventilation, and air conditioning) market with its diverse range of air conditioning units, including models AMNH123APM0 (LMAN120HNS), AMNH123DEA0 (LMN120HE), AMNC123DEA0 (LMN120CE), A2UH243FA0 (LMU240HE), and A2UC243FA0 (LMU240CE). Each of these models is designed to provide efficient cooling and heating solutions, boasting advanced technologies and user-friendly features.

The AMNH123APM0 (LMAN120HNS) model stands out for its energy efficiency, thanks to its inverter technology that adjusts power consumption according to the cooling or heating demand. This feature not only reduces energy costs but also enhances the lifespan of the unit. Additionally, its compact design allows for easy installation in various residential or commercial settings.

Similarly, the AMNH123DEA0 (LMN120HE) offers robust performance with its variable-speed compressor technology. This model ensures precise temperature control and minimal fluctuations, promoting comfort throughout the space. The unit also incorporates a quiet operation mode, making it ideal for bedrooms or offices where noise levels need to be minimized.

The AMNC123DEA0 (LMN120CE) is another compelling choice, featuring a sleek design that fits seamlessly into any décor. It operates efficiently in various weather conditions, maintaining a consistent indoor climate year-round. Its smart diagnostic system simplifies maintenance, allowing for timely troubleshooting and ensuring long-term reliability.

For larger spaces, the A2UH243FA0 (LMU240HE) and A2UC243FA0 (LMU240CE) models provide effective solutions with their powerful cooling and heating capacities. These units are equipped with multi-zone capabilities, allowing users to customize temperatures for different areas of a building. The advanced filtration system in these models captures dust and allergens, improving indoor air quality.

Another noteworthy feature across these models is their SmartThinQ technology, which enables users to control their systems remotely via a smartphone app. This feature not only adds convenience but also facilitates energy management by allowing users to monitor and adjust settings on the go.

In conclusion, LG Electronics offers a range of HVAC solutions with its AMNH123APM0, AMNH123DEA0, AMNC123DEA0, A2UH243FA0, and A2UC243FA0 models. With energy-efficient technology, user-friendly features, and advanced performance capabilities, these air conditioning units are designed to meet the diverse cooling and heating needs of modern consumers while ensuring environmental sustainability.
Top Page Image Contents