Heat Controller DMH18DB-1 44Multi type Air Conditioner, Disassembly, To remove the Control Box

Page 44

Disassembly

2. To remove the Control Box.
•	Remove securing screws.
•	Pull the control box out from the chassis
	carefully.
	Screw

3.To remove the Discharge Grille.

•Unhook the discharge grille and pull the discharge grille out from the chassis carefully.

4.To remove the Evaporator.

•Remove 3 screws securing the evaporator(at the left 2EA in the Eva Holder, at the right 1EA).

•When repair, do not damage the Caution label.

44Multi type Air Conditioner

Image 44

Contents Only for authorized service personnel HEAT CONTROLLER, INCWall Mounted Multi-SplitSystem Air Conditioning/Heat Pump2Multi type Air Conditioner TABLE OF CONTENTSSymbolsUsedinthisManual Service ManualCombination table Combination tableSafety Precautions InstallationSafety Precautions 4Multi type Air ConditionerService Manual Safety PrecautionsDo not install, remove, or re 6Multi type Air Conditioner Safety PrecautionsWhen the product is soaked an Authorized Service CenterInstallation Safety PrecautionsInstall the drain hose to ensure that installing the productSafety Precautions Operational8Multi type Air Conditioner Safety Precautions Service Manual•Be careful and avoid personal injury •They may burn or explodeDimensions DimensionsIndoorUnit Split Type IndoorOutdoorUnit DimensionsService Manual UE 18kBtu/hProduct Specifications Product Specifications12Multi type Air Conditioner Outdoor UnitProduct Specifications Service ManualIndoor Unit B-DMH18DB-1Installation InstallationPartsInstallationTools InstallationSelect the best location InstallationRooftop Installations Indoor unitPiping length and elevation 16Multi type Air ConditionerInstallation Multi Piping TypeService Manual Fixing Installation PlateInstallation Flaring Work and Connection of Piping FlaringworkFlaring Work and Connection of Piping 18Multi type Air ConditionerConnecting the Piping For right rear pipingService Manual Flaring Work and Connection of Piping20Multi type Air Conditioner Flaring Work and Connection of PipingFlaring Work and Connection of Piping For left rear pipingService Manual Flaring Work and Connection of Piping 22Multi type Air ConditionerIndoor unit installation Flaring Work and Connection of Piping REMOTE CONTROL PREPARATIONOPTIONALHOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Outdoor 24Multi type Air ConditionerFlaring Work and Connection of Piping Connectthe cabletotheIndoorunit Service ManualFlaring Work and Connection of Piping Line voltage 208~230VEvery wire must be connected firmly Connectthe cabletotheOutdoor unit26Multi type Air Conditioner Service Manual Connectionmethod ofthe connectingcableExampleHow to connect wiring to the terminals rating on the unit rating plate Connectthecable totheindoorunit28Multi type Air Conditioner Checkingthedrainage Service ManualTo check the drainage Drain pipingFormingthe piping 30Multi type Air ConditionerService Manual Air Purging and EvacuationCheckingmethod Air Purging and EvacuationEvacuation 32Multi type Air ConditionerRepeat evacuation procedure for each indoor unit Finishing the jobImportant:Unit is critically charge ChargingCharging Test Running Test Running34Multi type Air Conditioner Prepare remote controlOperation Functionofcontrol1. MAIN UNIT FUNCTION Operation36Multi type Air Conditioner OperationDefrost ControlHeating Fuzzy OperationOn-TimerOperation Off-TimerOperationService Manual Operation38Multi type Air Conditioner Off-Timer = On-TimerOperationSleep Timer Operation OperationService Manual OperationForced Operation Buzzer Sounding OperationFunctionofIndoorUnit 40Multi type Air ConditionerOperation ON/OFF by Remote controller Time Delay Safety ControlFunctionofOutdoor Unit Service ManualOperation Operating StepRemoteControlOperation 42Multi type Air ConditionerSETTING BUTTONS 7ON/OFF TIMER BUTTONSDisassembly DisassemblyIndoor Unit To remove the Grille from the Chassis44Multi type Air Conditioner Disassembly2. To remove the Control Box 3.To remove the Discharge GrilleService Manual Disassembly5.To remove the Motor Cover 6.To remove the Cross-FlowFanSchematic Diagram Schematic DiagramElectronicControlDevice 1.Indoor UnitTMP87CM41F 2. Outdoor UnitSchematic Diagram 48 Multi type Air Conditioner Schematic DiagramWiring Diagram 1. Room Type Indoor Unit 2. Outdoor UnitSchematic Diagram Service ManualComponentsLocations 1. Indoor Unit•TOP VIEW • BOTTOM VIEWSchematic Diagram 2. Display ASSEMBLY 1 Split Type 6871A20682A3. Outdoor Unit 52Multi type Air ConditionerSchematic Diagram 1 Component sideSchematic Diagram 2 Solder sideTroubleshooting Guide RefrigerationCycleDiagramTroubleshooting Guide 54Multi type Air ConditionerIndoor Error Outdoor ErrorSelf-diagnosisFunction Troubleshooting GuideCycleTroubleshooting Guide Trouble analysis56Multi type Air Conditioner Troubleshooting GuideElectronicPartsTroubleshooting Guide TroubleThe Product doesn’t operate at all Troubleshooting GuideProduct doesnt operate with the remote controller 58Multi type Air ConditionerTroubleshooting Guide TroubleThe Compressor/Outdoor Fan are dont operate Troubleshooting GuideService Manual TroubleTrouble 4 When indoor Fan does not operate When indoor Fan does not operate60Multi type Air Conditioner Troubleshooting GuideTrouble 5 When the louver does not operate When Vertical Louver does not operateTroubleshooting Guide Service ManualErrorCode 62Multi type Air ConditionerTroubleshooting Guide Trouble ShootingTroubleshooting Guide Power input AC 230V.Outdoor, Indoor• The connecting wires are misconnected Title64Multi type Air Conditioner Troubleshooting GuideError Cause of errorService Manual Troubleshooting GuideCause of error Title2-way, 3-wayValve 2-way, 3-wayValve66Multi type Air Conditioner 2-wayValve Liguid Side1 Pumping down Service Manual2-way, 3-wayValve 2.Operate the unit for 10 to 15 minutes2 Evacuation 68Multi type Air Conditioner7.Mount the valve caps and the service port caps 2-way, 3-wayValve3 Gas Charging Service Manual2-way, 3-wayValve After EvacuationHEAT CONTROLLER, INC 1900 WELLWORTH AVENUE • JACKSON, MICHIGANTHE QUALITY LEADER IN CONDITIONING AIR 05/15/07

2. To remove the Control Box.

3.To remove the Discharge Grille.

4.To remove the Evaporator.

44Multi type Air Conditioner