LG Electronics LSN240CE Additional gas charging, Method of using graph, Method of using equation

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Troubleshooting Guide

Additional gas charging

(Gas leakage)

When refrigerant is insufficient by leakage, recharge the unit with the refrigerant up to normal oper- ating suction pressure.

Use the graph or the equation below to get operating suction pressure according to indoor and out- door temperature.

Suction pressure was measured at 3-way valve service port after operating the unit for 10 minutes.

The method of using graph

-Find outdoor temperature.

-Find indoor temperature onto the curve of outdoor temperature.

-Read suction pressure at the axis of ordinates.

The method of using equation

-. Calculate suction pressure after putting indoor and outdoor temperature into the equation.

Suction Pressure (Kg/cm2.g)

Operating Suction Pressure (For R410A)

(According to Indoor & Outdoor Temperature)

 

(At operating the Unit for 10 minutes)

13

 

12

50˚C

 

11

40˚C

10

30˚C

9

20˚C

8

10˚C

0˚C

 

7

6

5

5

10

15

20

25

30

35

40

Indoor Temp. (˚C)

Outdoor Temp. (˚C)

P = 3 + 0.0123 x Tout1.5 + 0.8 x Tin0.5

Where, P : Suction Pressure(kg/cm2.g)

Tout : Outdoor Temperature(˚C)

Tin : Indoor Temperature(˚C)

50Room Air Conditioner

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Contents Room Air Conditioner Table of Contents Do not modify or extend the power cord Safety PrecautionsInstallation 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 failureOr more often if necessary Solvents, etcOn the product. outdoor unit Replace all the batteries in the remote DisuseDo not drink the water drained from the unit Indoor Unit DimensionsSymbols Used in this Manual Model Btu Series Dimension Mminch 109042.9 30011.8 1787.0 Outdoor Unit 9k, 12k18k, 24k DIMFeatures IntroductionInstallation Tools InstallationInstallation Parts Installation Map Bushing-SleeveConfirm The Refrigerant This Product Contains R-410A RefrigerantIndoor unit Rooftop InstallationsSelect The Best Location Outdoor unitPiping Length And Elevation Evap Moz/ftHow To Mount Installation Plate Drill a Hole In The WallBurrs removal Flaring WorkCut the pipes and the cable Putting nut onIndoor Connecting The PipingIndoor unit installation 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 sealerPreparation Air PurgingAir purging With Vacuum Pump Leak testEvacuation Finishing the jobCharging Settlement of outdoor unit Prepare remote controlTest Running Evaluation of the performanceOperation Cooling Mode OperationHealthy Dehumidification Mode Function of ControlsHeating Mode Operation Defrost ControlJet Cool Mode Operation C/O Model Sleep Timer OperationChaos Natural Wind Mode Jet Cool Mode Operation H/P ModelAuto restart Forced operationTest operation Protection of the evaporator pipe from frostingHeating Model Display FunctionSelf-diagnosis Function Remote Control Operations Operation ModeDisassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Motor Cover Cooling Only Models Troubleshooting GuideRefrigeration Cycle Diagram Cooling & Heating ModelsWay, 3-way Valve Way Valve Liquid SideProcedure Pumping DownBalance Refrigerant of the 3-way Valve Vacuum pump Gas Charging After EvacuationAccording to Indoor & Outdoor Temperature Method of using graphMethod of using equation 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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