LG Electronics AS-W096URH1/UBH1/UWH1/UMH1 Protection of the evaporator pipe from frosting

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Operation

Protection of theevaporatorpipefromfrosting

•If the indoor pipe temperaure is below 0°C in 7 min. after the compressor operates without pause while in cooling cycle operation mode,

➔compressor, outdoor fan are turned off.

•When indoor pipe temp. is 7°C or higher after 2 min pause of compressor

➔compressor, outdoor fan is turned on according to the condition of the room temperature.

				Indoor pipe
		Comp. free		temp.
	6˚C			7˚C
	6˚C	Comp. Step 4		7˚C
	3˚C	Comp. Step 4
	3˚C	Comp. Step 2
	0˚C	Comp. Step 2
	0˚C	Comp. off
		Comp. off

Protection of the indoorfan from dropletformation (Enclosure sweat and condensed disposaltest)

•Control condition : The system operates standard operation without this condition as follows.

Setting temperature <25°C

Indoor fan speed ≤ low speed

Outdoor temperature < 30°C

•Control method

In operation for 5~20 minutes in , , conditions, return to the previous COMP STEP after operation for 5~40 minutes at the COMP STEP 3.

34Room Air Conditioner

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Contents LG Room Air Conditioner Table of Contents 2002 LG Model NameCode Type Code of Model Meaning 2003~2005 MeaningSafety Precautions InstallationThere is risk of fire, electric shock, explosion, or injury Operation ThinnerKeep level even when installing the product Be cautious that water could not enter the productOperation Indoor Unit DimensionsSymbols Used in this Manual 9k, 12k Btu SeriesOutdoor Unit Product Specifications AS-W096U0 AS-W126U0 AS-W096U1 AS-W126U1Indoor unit InstallationSelect the best Location Outdoor unitOil trap should be installed every 5~7 meters Fixing Installation PlatePiping Length and Elevation Drill a Hole in the Wall Flaring WorkIndoor Connecting the PipingCheck Foamed polyethylene or equivalent is recom- mendedWrap the insulation material around the connecting portion For left rear piping Indoor unit installation For left piping. Follow the instruction below Good case Bad caseOutdoor Outdoor unitConnecting the Cables Circuit Grade Breaker To check the drainage Checking the DrainageDrain piping Forming the Piping Air purging Air PurgingAir purging with vacuum pump Evacuation Soap water methodFinishing the job Settlement of outdoor unit Prepare remote controllerTest Running Evaluation of the performancePump Down Procedure Pump DownFunctions Overheatng. ProtectionPower module Power relay control Active power filter controlPSC Stand by control at low tempHigh39C Low11C Cancel Sleep Mode, Timer on or Timer OFF3, 4, 5, 6 Off Timer Cooling Down to 18C Heating Down to 16C Up to 30CLED display of indoor unit OperationLG Brand/OEM Brand Protection of the evaporator pipe from frosting Control methodCooling mode operation Model Comp. Operating frequencyHealthy Dehumidification mode operation Intake air Temp Setting TempOperating freq. step of comp Heating mode operationTemp. differences Comp. Operating frequency Fuzzy operation for cooling Fuzzy mode operationOptionalsIntake air temp Setting temp Fan speed At beginningFuzzy operation for Heating Fuzzy operation for dehumidificationSwing mode Jet cool mode operationJet heat mode operation Chaos swing modeSleep timer operation for cooling cycle Sleep timer operationSleep timer operation for heating cycle Forced operation Indoor temp Operating Mode Setting tempAuto restarting operation Trial OperationProtection from total current control Protection from DC Peak CurrentPortection from overheating of power module Portection from overheating of compressorAS-W096/126U0 Series Defrosting controlAS-W096/126U1 Series Auto ChangeoverOptional Auto CleaningLow Ambient Disassembly To remove the Grille from the ChassisTo remove the Discharge Grille To remove the Control BoxTo remove the Evaporator To remove the Motor Cover To remove the Cross-Flow FanElectric Control Device Schematic DiagramIndoorAS-W096U 0, AS-W126U 0 Series OutdoorAS-W096Series, AS-W126Series Wiring Diagram Indoor Unit AS-W096/126U0,1 SeriesOutdoor Unit AS-W096U0 Series AS-W126U0 SeriesIndoor Main P.W.B Assembly DC Part Components LocationDisplay ASSEMBLYAS-W096/126U0,1 Series Outdoor Main P.W.B Assembly AS-W096/126U0 Series Model Capillary Tube Troubleshooting GuideRefrigeration Cycle Diagram Model Adopted Electrion Expansion ValvePipe Length and the Elevation Oil trap should be installed per 5~7 metersOutdoor unit Indoor unit Way, 3-way Valve Way Valve Liquid SideCheck for gas leakage ProcedureAir purging Purge the air from the systemAir purging of the charge hose Pumping DownSet the 2-way valve to the closed position Re-air Purging Re-installationMount the valve stem nuts and the service port nut Air purgingBalance Refrigerant of the 3-way Valve Gas leakageEvacuation All amount of refrigerant leakedConnect the charge hose to the charging cylinder Gas ChargingAfter Evacuation Purge the air from the charge hoseCycle Parts Trouble analysisSelf-diagnosis function Precaution in Service or Check Diagnosis ProcedureProcedure Specification Remedy Electronic PartsProduct doesnt operate with the remote controller Compressor/Outdoor Fan are unable to drive Check Point Comp. on Comp. OFFWhen indoor Fan does not operate Trouble 5 When the horizontal louver does not operate Heater does not operate at all Outdoor Unit does not operate at all Indoor OutdoorTrouble 8-1When compressor does not operate normally DC Peak ErrorError Code ➅Trouble 8-2When compressor does not oprate normally Communication error between Indoor and Outdoor Error Code ➄Trouble 8-3When compressor does not oprate normally CT Error Error Code ➆Connectors Condition Problem error mode Problem of missing the connector Indoor Main PCB AssyProblem of missing the connector Outdoor Main PCB Assy CN-T/BlockExploded View Indoor UnitOutdoor Unit Replacement Parts List DescriptionPanel ASSY, Front SUB No A20061Z October