Manuals / Heat Controller / Household Appliance / Air Conditioner

Heat Controller DMH09SB-0 Troubleshooting Guide, RefrigerationCycleDiagram, Cooling Only Models

Models: DMH12SB-0 DMH18SB-1 DMC24SB-1 DMH24SB-1 DMH09SB-0 DMC09SB-0 DMC12SB-0 DMC18SB-1

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Troubleshooting Guide

RefrigerationCycleDiagram

(1) Cooling Only Models

INDOOR UNIT

LIQUID SIDE

HEAT EXCHANGE (EVAPORATOR)

OUTDOOR UNIT

CAPILLARY TUBE

HEAT EXCHANGE (CONDENSER)

GAS SIDE

(2) Cooling & Heating Models

COMPRESSOR

INDOOR UNIT

HEAT EXCHANGE (EVAPORATOR)

	OUTDOOR UNIT
LIQUID SIDE	CHECK VALVE
LIQUID SIDE	(Heating Model only)
3-WAY VALVE
	CAPILLARY TUBE
		HEAT
		EXCHANGE
		(CONDENSER)
GAS SIDE
3-WAY VALVE	ACCUMU	REVERSING
3-WAY VALVE		VALVE
		VALVE
	LATOR	(Heating Model Only)
	COMPRESSOR	COOLING
	COMPRESSOR	HEATING
		HEATING

Service Manual 43

Page 43

Image 43

Heat Controller DMH09SB-0 Troubleshooting Guide, RefrigerationCycleDiagram, Cooling Only Models, Cooling & Heating Models

Contents

Air Conditioning/Heat Pump Only for authorized service personnelHEAT CONTROLLER, INC Wall Mounted Mini-SplitSystem Single-ZoneTABLE OF CONTENTS 2Room Air ConditionerBe sure not to do Safety PrecautionsInstallation Safety PrecautionsDo not handle the pipe by your- selfCostomer Operation4Room Air Conditioner Safety PrecautionsThere is risk of electrical shock Safety PrecautionsThere is risk of fire or electrical shock There is risk of electric shockInstall the drain hose to ensure that 6Room Air ConditionerInstallation Safety PrecautionsDo not use harsh detergents, sol- vents, etc DisuseSafety Precautions Use a soft cloth to clean8Room Air Conditioner DimensionsDimensions IndoorUnitModel DimensionsDimensions OutdoorUnit1. 9k, 12k 10Room Air ConditionerDimensions 2. 18k, 24kIntroduction SymbolsUsedIn ThisManualFeatures NOTICE This symbol indicates special notesIntroduction InstallationInstallation Parts InstallationToolsInstallation InstallationMap14Room Air Conditioner Installation ConfirmTheRefrigerantTHIS PRODUCT CONTAINS R-410AREFRIGERANT Outdoor unit Rooftop InstallationsSelectTheBest Location Indoor unitInstallation PipingLengthAndElevationInstallation How To Mount Installation PlateDrillaHoleIn The Wall 18Room Air ConditionerPutting nut on Flaring WorkCut the pipes and the cable Burrs removalFor left rear piping ConnectingThePipingIndoor unit installation IndoorInstallation For right rear pipingInstallation Insert the connecting cable into the indoor unitIndoor unit installation 22Room Air ConditionerPiping for passage through piping hole InstallationInstallation Correct caseIncorrect case 24Room Air Conditionerthe face of the flare before assembling ConnectionOfTheDrainHoseConnectionOfPiping-Outdoor Put a couple drops of refrigerant oil on7.Use lock nuts to secure the conduit tubes ConnectionOfTheCable2.Dismount caps on the conduit panel 5.Ground the unit in accordance with local codes8The following would be caused by voltage drop Installation3Specification of power source 4Confirm that electrical capacity is sufficientInstallation CheckingTheDrainageDrain piping 28Room Air ConditionerInstallation FormingThePipingLeak test AirPurgingAirpurging With Vacuum Pump PreparationFinishing the job EvacuationInstallation Installation ChargingImportant Unit is critically charged 32Room Air ConditionerEvaluation of the performance Prepare remote controlTest Running Settlement of outdoor unitDISPLAY OperationFunctionofControls OperationDefrost Control Heating Mode OperationOperation Jet Cool Mode Operation C/O Model Sleep Timer OperationAirflow Speed Selection Chaos Natural Wind ModeProtection of the evaporator pipe from frosting Forced operationTest operation Auto restart38Room Air Conditioner Display FunctionSelf-diagnosisFunction 1. Heating Model9.TIMER SET/CANCEL BUTTON RemoteControlOperations7.ON/OFF TIMER BUTTONS 8.TIME SETTING BUTTONSOperation DisassemblyIndoor Unit 40Room Air Conditioner4.To remove the Evaporator Disassembly2. To remove the Control Box 3.To remove the Discharge Grille6.To remove the Cross-FlowFan Disassembly42Room Air Conditioner 5.To remove the Motor Cover1 Cooling Only Models Troubleshooting GuideRefrigerationCycleDiagram Troubleshooting Guide2-wayValve Liquid Side 2-way,3-wayValve44Room Air Conditioner Troubleshooting Guide2Operate the unit for 10 to 15 minutes ProcedurePumping Down Troubleshooting GuideProcedure Balance Refrigerant of the 3-wayValve46Room Air Conditioner Troubleshooting GuideAll amount of refrigerant leaked Troubleshooting GuideProcedure EvacuationProcedure Gas Charging48Room Air Conditioner Troubleshooting GuideAccording to Indoor & Outdoor Temperature The method of using graphThe method of using equation Additional gas chargingTroubleshooting Guide CyclePartsTrouble analysis 50Room Air ConditionerProduct does not operate at all ElectronicParts9kmodelTroubleshooting Guide Product does not operate at all ElectronicParts18k model52Room Air Conditioner Troubleshooting GuideTurn on Main Power Troubleshooting GuideTroubleshooting Guide 54Room Air ConditionerTurn on Main Power Troubleshooting Guide56Room Air Conditioner When indoor Fan does not operateTroubleshooting Guide Troubleshooting Guide When Vertical Louver does not operate58Room Air Conditioner When a comunication error occursTroubleshooting Guide INDOOR UNIT The phenomena in case of connecting errorTroubleshooting Guide 60Room Air Conditioner OUTDOOR UNITTroubleshooting Guide Indoor Schematic DiagramSchematic Diagram ElectricControl Device62Room Air Conditioner Outdoor 9k, 12kSchematic Diagram Schematic Diagram Outdoor 18k, 24kSchematic Diagram Wiring DiagramIndoor Unit 64Room Air ConditionerSchematic Diagram Outdoor UnitModels 9kC/O Models 12kH/P, 12kC/O, H/PSchematic Diagram Models 18kC/OModels 18kH/P, 24kC/O, H/P 66Room Air ConditionerSchematic Diagram Indoor MAIN P.W.B ASSEMBLY TOP VIEWComponentsLocation BOTTOM VIEW68Room Air Conditioner Outdoor9k, 12k TOP VIEW BOTTOM VIEWSchematic Diagram Schematic Diagram Outdoor18k, 24k TOP VIEW BOTTOM VIEWSchematic Diagram DISPLAY ASSEMBLY6870A90240D - 6870A90240E 70Room Air ConditionerModel Name Product SpecificationsProduct Specifications Cooling Only72Room Air Conditioner Cooling & HeatingProduct Specifications 1900 WELLWORTH AVENUE JACKSON, MICHIGAN HEAT CONTROLLER, INCTHE QUALITY LEADER IN CONDITIONING AIR