Heat Controller MSS-012B/A, MSH-0186/A, MSS-018B/A, MSH-01 2B/A When Indoor Fan does not operate

Page 53

5. When Indoor Fan does not operate.

Does the voltage of each terminals of CN-MOTOR CONNECTOR in

Indoor unit corresponds to values In the Table of page 517

_C3-

ltage oof!terminal CN-DC/DC CONNECTOR in Indcor unft corresponds to the values in the table of page 51?

Check connecting condition of the CN-MOTOR CONNECTOR

	Do the vonage ofterminal of CN-	Check the pattern and the
	DCM CONNECTOR in
		condition of indoor unit PWB
	Outdoor unit corresponds to the
		Assy
	values in the table of page 51?

Check the interference of Indoor Fan.

NOyF.S

Check the patterns and the	Check the connecting cons l-	Check the motor of Indoor Fan
	ton and disconnection of
cond'nions of outdoor unit
	connecting wires between
PWB ions o
AssYs.	Indoor and Outdoor unit.

Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode). Indoor Fan is to be stopped when Indoor pipe(ooil) termperature is lower than 79°F.

(At that tunes, Defrost indicator is turned on)

-53-

Image 53

Contents Heat CONTROLLER, INC Contents Auto Wind FunctionsIndoor Unit Fan Speed Selection Remote ControllerOperation Owoff Operation Mode Selection Power Supply 17Z,-W Product SpecificationsCooling OnlyAir Circulation Oumw 1 ,260Product SpecificationsCooling & Heating Indoor Unit Jzý, Installation plateTubing hole cover 9k, 12k 18k, 24kModel DIM Outdoor UnitGas side Cooling Only Models Refrigeration Cycle DiagramCamay a Heating Cooling & Heating ModelsHeat Evaporator I / \Indoor Wiring Diagram Indoor Wiring DiagramMSS-012, MSS-018, MS18, MSS-024, MSF4424 Iroom9k, 12k Outdoor Unit Cooling Only Models18k 24k LO.a12k 18k 24k Cooling Operation Mode Time delay Safety ControlFunction of main control Airflow Direction ControlSetting TEMP. -10F Auto Operation Electronic control modeIntake AIR Temp Setting TEMP. +1F MODE1rStart ModeoMODE2 MODE3 MODE4 Modes EndIntake AIR TE Soft Dry Operation ModeSelecting Low OFF CompressorSetting Temp Intake AIR Temp Setting TEMP. +60FHeating Operation Modeonly Heating Model IndoorPipe Temp Rý uDefrost OFF Defrost onSetting TEMP. -1F Cooling or Heating Mode with Sleep Mode Auto ControlForced Operation Setting TempCrank Case Heater Coil Controlonly Heating model ICJOutdoor IndoorSelf-diagnosis Function Display FunctionBuzzer Sound DiagnosisIs toxic when burned InstallationWhen connecting refrigerant tubing When servicingPiping length and the elevation Roof Top InstallationsSelection of the best location Avoid areas where electrical wiring, conduits or Indoor Unit InstallationWire or gas line can cause death or injury Lower left and right side of Installation PlatePreparation of Pipings Piping and Drainage of Indoor UnitStarted Poo 113 H IW-0For right rear piping Connection of Pipings5kgm39.8ft.ibs LljFor the left pipings Tape the tubing, drain hose and the connecting Insert the connecting cable into the indoor unitIndoor unit installation Installation plate. Engage the two hooks of the rearDrain hose Taping Connection of the cable Connecting Pipings and the cable to Outdoor unitConnecting the pipings to the Outdoor unit 2sanoev Terminals and fasten the wire tightly with the fixing screwChecking the Drainage Attach the Grille onto the cabinet Connect the cable to the indoor unitForming the pipings BwidPage Page Evaluation of theperformance Temperature, Pressure, Ampere ChanSettfemont of Outdoor Unit MG OFF Timer Button Name and Function-Remote ControllerSleep Mode Auto Button Operation displayStart/Stop Button Qs Operation Mode Selection ButtonCooling & Heating Be careful not to lose the clip when reassem- blingRemove the securing screws To remove the Control BoxRemove 2 securing screws Page To remove the Control Box To remove the Grille from the ChassisTo remove the Evaporator To remove the Discharge GrilleRemove three screws fixing control box and motor Unhook the tab on the left inside edgeTo remove the Fan Motor To remove the Cross-Flow FanCause of Trouble Cycle Troubleshooting GuideTrouble analysis Connector related to CN-POWER Connector related to CN-FAN Turn off Main Power Cý After 10 secondsDisplay PWB Assy Check Connector related to CN-DC/DC Does beeping sound is made from the Indoor Unit?R751K C711000PF Micom PIN Check Receiver Assy Product Is not operate with the remote controllerCompressor/Outdoor Fan are unable to drive Turn on Main PowerWhen Indoor Fan does not operate When Vertical Louver does not operate Operation indicator of Indoor unit blinks five times When a comunication error occursIndoor Unit Phenomena in case of connecting errorCN-UP/DOWN CN-TH+0 , ý CN-POWER RY-COMPOutdoor Unit CN-TRANS CN-FANVoltage of Connectors according to Indoor Fan Speed Optional Function Electronic Control Device1OK Main PWB ASSYOutdoor UnitOptional Function Model LDt ftn 18k, 24kASM LD2 LD4Schematic Diagram Page BA ýJ Remote Controller Plate InstallationHeat OTY Remark Parts Name ControllerIndoor Unit18k, 24k Motor Assy Chassis Assy Parts NameTom, .ý M m mm 7DDD \ , \Base Weld ASM Condenser Compressor ASM 9k, 12kReversing Valve Reversing Coil Front Panel AssyTOP Cover ASM Rear Panel Barrier31 CAP Capillary Final ASM HEATERCRANK-CASE1 Heat QTY RemarkOutdoor Unit18k `Ty MSS-018A MSH-018A L8k171 Clamp Capacitor Controller Assy Check Valve CAPILLARY, Bent Reversing Coil QTY RemarkPWB ASSY, Main SH-CAPACITOR 29 CAP CAPILLARY, Bent Panel Cover ControlPANEL, Rear 2021-0024ICJ No Remark R means service parts9O2k MSS-009B MSS-012B 2021-0001MSS-0188 MSH-018B Plate Installation Holder Tube Motor Assy Chassis Assy2021-0001 2021-0074 2010-0003 2021-0069 2021-0005 FAN Assy CrossGQ 21k Service VALVE1/4 Service VALVE112Capillary TOP Cover ASMFinal ASM HEATERCRANK-CASEReversing Valve High Pressure S/WMSS-018A MSH-018A FAN Motor2021-0024 I`J PWBASSY,MAIN Support Valve High Pressure S/W Reversing CoilSAT City Remark 2035-0004 2035-0006 UTY Remark2021-0021 2050-0001 Extra FAN Barrier ASMHeat CONTROLLER, INC

5. When Indoor Fan does not operate.

AssYs.

Indoor and Outdoor unit.