Heat Controller MSS-009B/A Soft Dry Operation Mode, Intake AIR TE, Selecting Low, OFF Compressor

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05. Soft Dry Operation Mode

"During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 2°F, the compres- sor OFF temperature is the setting temperature minus 1 °F.

"When the room temperature rises over the compressor ON temperature, the operation mode is switched to the Cooling operation.

"When the room temperature falls between the compressor ON temperature and OFF temperature, the opera- tion mode is switched to the Soft Dry Operation.

*The operation diagram Is shown below.

INTAKE AIR TE	Cooing	Soft Dry Operation			G0*9
INTAKE AIR TE	Operation				G0*9
ML	Operation				OpWAM
ML
SETTING TEMP. +2°F
(Compressor ON)							manmm
							manmm
							a einýs
SETTING TEMP. -1°F
(Compressor OFF)				min
				min
		3rrinýs	tOmnýs	prLies		3mintes
							mazmrn
							mi
INDOOR FAN SPEED	Selecting	Low	Low	Low	Selecting	Low	Low
	fan speed				fan speed
0	ON	OFF	ON	OFF	ON	OFF	ON
COMPRESSOR	ON	OFF	ON	OFF	ON	OFF	ON

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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

05. Soft Dry Operation Mode

INTAKE AIR TE

prLies

Selecting

Low

OFF

COMPRESSOR