LG Electronics AMNC123APM0(LMAN120CNS), A3UH363FA0(LMU360HE) Connect the cable to the indoor unit

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Connecting the Cable between Indoor Unit and Outdoor Unit

CAUTION: Provide a circuit breaker between power source and the unit as shown below.

Main power source

Air

Conditioner

Circuit Breaker	Model	Power source	Fuse or breaker
Use a circuit			Capacity
Use a circuit
breaker or time	36k	1Ø, 230/208V	40A
delay fuse.

Connectthecable totheindoorunit

1.Connect the wires to the terminals on the control board individually according to the outdoor unit connection.

•Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respec- tively.

2.Attach the Grille onto the cabinet.

•Grasp the lower left and right side of the Grille and engage four tabs on the top inside edge of the chassis.

•Press the Grille toward the chassis until it will be back into place.

Connecting cable

Service Manual 33

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Contents Outdoor Unit A3UH363FA0LMU360HE A3UC363FA0LMU360CE Indoor Unit Room Type Art Cool TypeTable of Contents Model Number Nomenclature Indoor UnitOutdoor 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 productDimensions Indoor UnitSplit Type Indoor Outdoor Unit Indoor Unit Product SpecificationsModel A3UC363FA0LMU360CE A3UH363FA0LMU360HE Outdoor Unit Multiple piping modelsInstallation Installation PartsInstallation Tools Rooftop Installations Select the best locationOutdoor unit Multi Piping Type Piping length and elevationFixing 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 PipingConnecting the Piping CheckIndoor Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Drive two screws Panel AssemblyArt Cool Type onlyBad case Good caseRemote Control Preparationoptional Outdoor unit Outdoor Connect 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 cableExampleConnect the cable to the indoor unit Checking the drainage To check the drainageDrain piping Forming the piping Checking method Air Purging and EvacuationPreparation Leakage testRepeat evacuation procedure for each indoor unit EvacuationFinishing the job Additional ChargingSplit, Art Cool Type Test RunningSoft Dry Operation Mode Cooling Mode OperationHeating Mode Operation OperationDefrost ControlHeating Fuzzy OperationFuzzy Operation for Cooling 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 Remote Control Operation Cooling Model , Heat Pump Model15 2nd F Button 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 Evaporator Before removing the Turbo FanTo remove the Motor Schematic Diagram Electronic Control DeviceSplit Type Outdoor Outdoor Unit Schematic Diagram Art Cool Type Indoor Unit Wiring DiagramBottom View Components LocationsArt Cool Type Schematic Diagram Component side Solder side Refrigeration Cycle Diagram Troubleshooting GuideA3UH363FA0LMU360HE A3UC363FA0LMU360CEOutdoor 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 positionMount the valve caps and the service port caps EvacuationAll amount of refrigerant leaked 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 ListParts List S4, SE chassis S4 chassis SE chassisLMN090HE SP3 Chassis Art Cool Type Filter ASSEMBLY,AIR Cleaner Parts List SP3 chassisA3UC363FA0LMU360CE Code Parts List A3UH363FA0LMU360HE, A3UC363FA0LMU360CEMay No A20474C