LG Electronics LSN090CE, LSU120CE, LSU090HE, LSU090CE, LSN180CE, LSN120HE, TRUE Room Air Conditioner

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After the confirmation of the above conditions, prepare the wiring as follows:

1)Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover.

2)The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)

3)Specification of power source.

4)Confirm that electrical capacity is sufficient.

5)Confirm that the starting voltage is maintained at more than 90 percent of the rated volt- age marked on the name plate.

6)Confirm that the cable thickness is as specified in the power source specification. (Particularly note the relation between cable length and thickness.

7)Always install an GFCI circuit breaker in a wet or moist area.

8)The following would be caused by voltage drop.

Vibration of a magnetic switch, which will damage the contact point, open fuse, disturbance of the normal function of the overload.

9)The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm(0.12in) in each active(phase) conductors.

28Room Air Conditioner

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Contents Room Air Conditioner Table of Contents Safety Precautions InstallationDo not modify or extend the power cord Be sure not to do Be sure to follow the instructionOperation Moisture may condense and wet or damage furnishings Keep level even when installing the product Low refrigerant levels may cause product failureOn the product. outdoor unit Solvents, etcOr more often if necessary Do not drink the water drained from the unit DisuseReplace all the batteries in the remote Symbols Used in this Manual DimensionsIndoor Unit Model Btu Series Dimension Mminch 109042.9 30011.8 1787.0 Outdoor Unit 9k, 12k18k, 24k DIMFeatures IntroductionInstallation Parts InstallationInstallation Tools Installation Map Bushing-SleeveConfirm The Refrigerant This Product Contains R-410A RefrigerantRooftop Installations Select The Best LocationIndoor unit Outdoor unitPiping Length And Elevation Evap Moz/ftHow To Mount Installation Plate Drill a Hole In The WallFlaring Work Cut the pipes and the cableBurrs removal Putting nut onIndoor unit installation Connecting The PipingIndoor Wrap the insulation material around the connecting portion Tighten the flare nut with a wrenchInsert the connecting cable into the indoor unit Indoor unit installationConnection Indoor Correct case Incorrect caseConnection Of The Drain Hose Connection Of Piping -OutdoorWiring Diagram Connection Of The CableRoom Air Conditioner Checking The Drainage Drain pipingForming The Piping Seal small openings around pipings with a gum type sealerAir Purging Air purging With Vacuum PumpPreparation Leak testEvacuation Finishing the jobCharging Prepare remote control Test RunningSettlement of outdoor unit Evaluation of the performanceCooling Mode Operation Healthy Dehumidification ModeOperation Function of ControlsHeating Mode Operation Defrost ControlSleep Timer Operation Chaos Natural Wind ModeJet Cool Mode Operation C/O Model Jet Cool Mode Operation H/P ModelForced operation Test operationAuto restart Protection of the evaporator pipe from frostingSelf-diagnosis Function Display FunctionHeating Model Remote Control Operations Operation ModeDisassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Motor Cover Troubleshooting Guide Refrigeration Cycle DiagramCooling Only Models Cooling & Heating ModelsWay, 3-way Valve Way Valve Liquid SideProcedure Pumping DownBalance Refrigerant of the 3-way Valve Vacuum pump Gas Charging After EvacuationMethod of using graph Method of using equationAccording to Indoor & Outdoor Temperature Additional gas chargingCycle Parts Trouble analysisElectronic Parts 9k model Product does not operate at allElectronic Parts 18k model Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive.9k Model Compressor/Outdoor Fan are unable to drive.18k Model When indoor Fan does not operate NectorWhen Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor UnitOutdoor Unit Schematic Diagram Electric Control DeviceOutdoor 9k, 12k Outdoor 18k, 24k Wiring Diagram Models 9kC/O Models 12kH/P, 12kC/O, H/P Models 18kC/O Models 18kH/P, 24kC/O, H/P Components Location Outdoor9k, 12k Outdoor18k, 24k 6871A20681 6871A20680Product Specifications Cooling OnlyCooling & Heating LS090HE LS120HE LS180HE LS240HEExploded View Outdoor Unit 9k, 12k Btu/h Seriess 435512 Outdoor Unit 18kH/P, 24k Seriess W0CZZ-2Replacement Parts List Parts List IndoorLSN180CE Parts List Outdoor LSU120HEReplacement Parts List LSU240HE No A20462V
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