Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics A2UC243FA0 (LMU240CE) InstallationParts, InstallationTools, Service Manual

Models: AMNC093APM0(LMAN090CNS) AMNH123DEA0 (LMN120HE) A2UC243FA0 (LMU240CE) AMNH123APM0(LMAN120HNS) A2UH243FA0(LMU240HE) AMNH093APM0(LMAN090HNS) AMNC123DEA0 (LMN120CE)

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Installation

Read carefully, and then follow step by step.

InstallationParts

Installation plate	Type "A" screw and plastic anchor
Type "B" screw	Remote Control Holder

InstallationTools

Figure	Name	Figure	Name
	Screw driver		Ohmmeter
	Electric Drill		Hexagonal wrench
	Measuring Tape, Knife		Ammeter
	Hole Core Drill		Gas Leak Detector
	Spanner		Thermometer,
	Spanner		Level
			Level
	Torque wrench		Flaring Tool Set

Service Manual 15

Page 15

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LG Electronics A2UC243FA0 (LMU240CE), AMNH123APM0(LMAN120HNS) InstallationParts, InstallationTools, Service Manual

Contents

Multi Type Air Conditioner SERVICE MANUALBEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNELInstallation Parts 2 Multi type Air ConditionerTABLE OF CONTENTS Multi type Air Conditioner Service ManualOutdoor Unit Service ManualModel Number Nomenclature Indoor UnitThis symbol alerts you to the risk of electric shock SymbolsUsedinthisManualCombination table 4 Multi type Air ConditionerBe sure not to do Be sure to follow the instruction Safety PrecautionsInstallation Safety Precautionsand installing the product Do not modify or extend the power cableDo not install, remove, or re install the unit by yourselfDo not allow water to run into electric parts Do not plug or unplug the power supply plug during operationDo not place a heater or other appliances near the power cable nect the power supply cable8 Multi type Air Conditioner When the product is soakedTurn the main power off when cleaning or maintaining the product not enter the productof air flow OperationalDo not expose the skin directly to cool air for long periods of time Dont sit in the draftDo not drink the water drained from the product ly. Clean the filter every twowhen cleaning or maintaining Do not step on or put anyting on the product. outdoor units1. Split Type Indoor DimensionsDimensions IndoorUnit24kBtu/h OutdoorUnit12 Multi type Air Conditioner DimensionsService Manual Product SpecificationsProduct Specifications Indoor UnitModel Outdoor Unit - Multiple piping models14 Multi type Air Conditioner Product SpecificationsInstallation InstallationInstallationParts InstallationToolsOutdoor unit Rooftop InstallationsSelect the best location Indoor unitService Manual Piping length and elevationMulti Piping Type InstallationFixing Installation PlateStandard Type 18 Multi type Air ConditionerInstallation Drain hose junction Preparing work for Installation Artcool Type OnlyOpen panel front Remove cover pipe and cover side20 Multi type Air Conditioner INSTALLATIONSticking the installation guide map and fixing Indoor unit Drill a hole in the wallCut the pipes and the cable Flaring Work and Connection of PipingFlaringwork Flaring Work and Connection of PipingFor right rear piping Connecting the PipingCheck IndoorFlaring Work and Connection of Piping Service ManualConnecting the piping to the indoor unit and drain hose to drain pipe Wrap the insulation material around the connecting por- tionDrain pipe For left rear piping24 Multi type Air Conditioner Flaring Work and Connection of PipingFlaring Work and Connection of Piping Service ManualWrap the insulation material around the connecting por- tion Indoor unit installationFlaring Work and Connection of Piping Panel AssemblyArt Cool Type only26 Multi type Air Conditioner Panel Front ConnectorFlaring Work and Connection of Piping Service ManualGood case Bad caseFlaring Work and Connection of Piping REMOTE CONTROL PREPARATIONOPTIONAL28 Multi type Air Conditioner HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIESOutside diameter OutdoorService Manual Flaring Work and Connection of PipingConnecting the Cable between Indoor Unit and Outdoor Unit Connecting the Cable between Indoor Unit and Outdoor UnitConnectthe cabletotheIndoorunit 30 Multi type Air ConditionerEvery wire must be connected firmly Connectthe cabletotheOutdoor unitConnecting the Cable between Indoor Unit and Outdoor Unit Service ManualConnecting the Cable between Indoor Unit and Outdoor Unit How to connect wiring to the terminals32 Multi type Air Conditioner Connectionmethod ofthe connectingcableExample2. Attach the Grille onto the cabinet Connectthecable totheindoorunitConnecting the Cable between Indoor Unit and Outdoor Unit Service ManualDrain piping Checking the Drainage, Forming the Pipings and Long Pipe SettingCheckingthedrainage To check the drainageChecking the Drainage, Forming the Pipings and Long Pipe Setting Service ManualFormingthe piping Air Purging and Evacuation CAUTION Be sure to use a manifold valve for leak testingAir Purging and Evacuation CheckingmethodChecking the Drainage, Forming the Pipings and Long Pipe Setting Repeat evacuation procedure for each indoor unitEvacuation Finishing the jobMax length of ChargingCharging 38 Multi type Air ConditionerService Manual Test RunningTest Running Split, Art Cool TypeOperation OperationFunctionofcontrol 1. MAIN UNIT FUNCTIONOperation Defrost ControlHeatingFuzzy Operation Service Manual42 Multi type Air Conditioner On-Timer OperationOff-Timer Operation Airflow Speed SelectionChaos Natural Wind Mode Off-Timer = On-Timer OperationSleep Timer Operation Chaos Swing ModeOperation Forced OperationBuzzer Sounding Operation 44 Multi type Air ConditionerOperation ON/OFF by Remote controller Sensing the Room Temperature FunctionofIndoorUnitSplit Type Indoor Unit Service ManualRoom temperature control Art Cool Type Indoor Unit46 Multi type Air Conditioner Operation ON/OFF by Remote controller Sensing the Room TemperatureOperation FunctionofOutdoor UnitOutdoor Unit Service ManualROOM TEMPERATURE RemoteControlOperation48 Multi type Air Conditioner The Remote Controller transmits the signals to the systemService Manual DisassemblyDisassembly Indoor Unit2. To remove the Control Box 50 Multi type Air ConditionerDisassembly When repair, do not damage the Caution label6. To remove the Cross-Flow Fan Service ManualDisassembly 5. To remove the Motor CoverArt Cool Type Indoor Unit Be sure the power switch is set to “OFF”52 Multi type Air Conditioner Disassembly4 Before removing the Turbo Fan DisassemblyService Manual 3 To remove the Evaporator1. Indoor Unit Schematic DiagramSchematic Diagram ElectronicControlDeviceManual DiagramSchematic ServiceTMP87CM41F 2. Outdoor Unit56 Multi type Air Conditioner Schematic DiagramService Manual Schematic DiagramR102 1. Room Type Indoor Unit -S4/SE chassis Wiring Diagram3. Outdoor Unit 2. Art Cool Type Indoor UnitMAIN P.C.B ASM 1 Split Type ComponentsLocationsTOP VIEW BOTTOM VIEWTOP VIEW BOTTOM VIEW 2 Art Cool Type60 Multi type Air Conditioner Schematic DiagramService Manual 2. Display ASSEMBLY 1 Split Type 6871A206802 Art Cool Type 6871A20462 Schematic Diagram3. Outdoor Unit 1 Component side62 Multi type Air Conditioner Schematic Diagram2 Solder side Schematic DiagramService Manual 1. A2UH243FA0LMU240HE Troubleshooting GuideRefrigerationCycleDiagram Troubleshooting GuideTroubleshooting Guide Indoor ErrorOutdoor Error Self-diagnosisFunctionTroubleshooting Guide CycleTroubleshooting GuideTrouble analysis 66 Multi type Air ConditionerTroubleshooting Guide ElectronicPartsTroubleshooting GuideTrouble The Product doesn’t operate at allTrouble Product doesnt operate with the remote controller68 Multi type Air Conditioner Troubleshooting GuideCheck Point The Compressor/Outdoor Fan are dont operateTroubleshooting Guide TroubleTroubleshooting Guide Trouble 4 When indoor Fan does not operateWhen indoor Fan does not operate 70 Multi type Air ConditionerTrouble 5 When the louver does not operate When Vertical Louver does not operateTroubleshooting Guide Troubleshooting Guide ErrorCodeCheck Point 72 Multi type Air ConditionerThe connecting wires are misconnected Service ManualTroubleshooting Guide Power input AC 230V.Outdoor, IndoorCause of error 74 Multi type Air ConditionerTroubleshooting Guide ErrorCheck Point Service ManualTroubleshooting Guide Cause of error2-way Valve Liguid Side 2-way, 3-way Valve2-way, 3-way Valve 76 Multi type Air Conditioner2-way, 3-way Valve Procedure1 Pumping down Service Manual7. Mount the valve caps and the service port caps 2 Evacuation78 Multi type Air Conditioner Procedure2-way, 3-way Valve 3 Gas ChargingProcedure 5. Mount the valve stem nuts and the service port nut80 Multi type Air Conditioner Exploded View & Replacement Parts ListExploded View & Replacement Parts List S4, SE chassisDESCRIPTION Parts List S4, SE chassisExploded View & Replacement Parts List Service ManualSP3 Chassis Art Cool Type 82 Multi type Air ConditionerExploded View & Replacement Parts List COVER ASSEMBLY,TOPINDOOR Parts List SP3 chassisExploded View & Replacement Parts List Service ManualA2UC243FA0 LMU240CE Outdoor Unit84 Multi type Air Conditioner Exploded View & Replacement Parts ListLocation Parts List A2UH243FA0LMU240HE, A2UC243FA0 LMU240CEExploded View & Replacement Parts List Service Manual