LG Electronics LSN090CE Test Running, Settlement of outdoor unit, Evaluation of the performance

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Test Running

1.Check that all tubing and wiring have been properly connected.

2.Check that the gas and liquid side service valves are fully open.

Prepare remote control

1. Remove the battery cover by pulling it according to the arrow direction.

2. Insert new batteries making sure that the (+) and (–) of battery are installed correctly.

3.Reattach the cover by pushing it back into position.

NOTE:

Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries.

Remove the batteries from the remote control if the system is not going to be used for a long time.

Settlement of outdoor unit

Anchor the outdoor unit with a bolt and

nut(ø 10mm(0.39in) tightly and horizontally on a concrete or rigid mount.

When installing on the wall, roof or rooftop, anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake.

In the case when the vibration of the unit is con- veyed to the hose, secure the unit with an anti- vibration rubber.

Bolt

Tubing connection

Evaluation of the performance

Operate unit for 15~20 minutes, then check the system refrigerant charge:

1. Measure the pressure of the gas side service valve.

2.Measure the temperature of the intake and discharge of air.

3.Ensure the difference between the intake tem- perature and the discharge is more than 46.4°F(8°C) (Cooling) or (Heating).

Intake temperature

Discharge air

Discharge temperature

4.For reference; the gas side pressure of optimum condition is as below.(Cooling)

Outside ambient TEMP.

The pressure of the gas side service valve

 

 

95°F(35°C)

8.5~9.5kg/cm2 G(120~135 P.S.I.G.)

NOTE: If the actual pressure are higher than shown, the system is most likely over- charged, and charge should be removed. If the actual pressure are lower than shown, the system is most likely undercharged, and charge should be added.

The air conditioner is now ready for use.

PUMP DOWN

This is performed when the unit is to be relocated or the refrigerant circuit is serviced.

Pump Down means collecting all refrigerant in the out- door unit without loss of refrigerant.

CAUTION:

Be sure to perform Pump Down procedure with the unit cooling mode.

Pump Down Procedure

1.Connect a low-pressure gauge manifold hose to the charge port on the gas side service valve.

2.Open the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas.

3.Close the liquid side service valve(all the way in).

4.Turn on the unit's operating switch and start the cooling operation.

5.When the low-pressure gauge reading becomes 1 to 0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the gas side valve stem and then quickly turn off the unit. At that time, Pump Down has been completed and all refriger- ant will have been collected in the outdoor unit.

34Room 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 failureSolvents, etc OccupantsSalt spray directly On the product. outdoor unitDo 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 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 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 sealerPreparation Air PurgingAir purging With Vacuum Pump Leak testEvacuation Finishing the jobCharging Btu/hSettlement 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 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 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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