Sanyo STB1220C1, STB0823H1, STB0810C1, STB1020C1, STB1010C1, STB1023C1, STB1123C1 Table of Contents

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Table of Contents

			Page
1.	OPERATING RANGE		1
2.	SPECIFICATIONS
	2-1.	Unit Specifications	2
	2-2.	Major Component Specifications	4
	2-3.	Other Component Specifications	6
3.	DIMENSIONAL DATA		7
4.	REFRIGERANT FLOW DIAGRAM		8
5.	PERFORMANCE DATA
	5-1.	Cooling Capacity	9
	5-2.	Heating Capacity	17
6.	ELECTRICAL DATA
	6-1.	Electrical Characteristics	18
	6-2.	Electrical Wiring Diagrams	21
	6-3.	P.C.B. Ass'y (Printed Pattern)	27
7.	TROUBLESHOOTING
	7-1.	Check before and after troubleshooting	28
	7-2.	Air conditioner does not operate	29
	7-3.	Some part of air conditioner does not operate	31
	7-4.	Air conditioner operates, but abnormalities are observed	33
	7-5.	If a sensor is defective	34
8.	CHECKING ELECTRICAL COMPONENTS
	8-1.	Measurement of Insulation Resistance	35
	8-2.	Checking Motor Capacitor	36
	8-3.	Checking Fan Motor Winding	36
	8-4.	Checking Compressor Motor Winding	36
	8-5.	Checking Thermistor	36
9.	DISASSEMBLY PROCEDURE
	9-1.	Removing Front Grille	37
	9-2.	Removing Wall Sleeve	37
	9-3.	Removing Electrical Component Box	37
	9-4.	Removing Electric Heater	38
	9-5.	Removing Blower Wheel	39
	9-6.	Removing Evaporator	39
	9-7.	Removing Condenser	40
	9-8.	Removing Propeller Fan	40
	9-9.	Removing Fan Motor	41
10.FUNCTION
	10-1.	Room temperature Control	42
	10-2.	Defrosting Operation (Heating)	45

APPENDIX

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Contents

Sanyo 26˝ Through the Wall AIR Conditioners & Heat Pump Please Read Before Starting HOW to USE this Manual ExampleTable of Contents Operating Range Models STB0810C1 STB1010C1 STB1020C1 STB1220C1Models STB0811C1 STB1023C1 STB1123C1 STB0823H1Specifications Unit SpecificationsModels STB0811C1 STB1023C1 STB1123C1 STB0823H1 Cooling & Electric Heating Heat PumpMajor Component Specifications CompressorPOW-STBH Other Component Specifications Room Thermostat YTB-2U136 YTB-2U358Dimensional Data Wall Sleeve Dimension Dimension of Wall OpeningRefrigerant Flow Diagram Model STB0823H1Performance Data Cooling Capacity10,200 BTU/h 700 BTU/h 11,500 BTU/h 000 BTU/h 500 BTU/h 11,300 BTU/h 980 810 650 490 300 070 22.8 100 Outdoor ambient temperature F DB Heating Capacity Heat pump PerformanceElectrical Data Electrical CharacteristicsCooling only models Cooling & electric heating models Heat pump model CoolingElectrical Wiring Diagrams Models STB0810C1 STB1010C1Models STB1020C1 STB1220C1 Model STB0811C1 Models STB1023C1 STB1123C1 Model STB0823H1 Layout for Electric Parts P.C.B. Assy Printed Pattern POW-STBH For model STB0823H1Troubleshooting Check before and after troubleshootingCheck power supply Check lead wires and connectorsAir conditioner does not operate Circuit breaker trips or fuse blowsPower is not supplied Check Mode selector on the control panelNeither fan motor nor compressor motor runs Check transformerOnly fan does not run Some part of air conditioner does not operateElectric heater does not work Check setting temperature Only compressor unit does not runCheck compressor and electrical parts Cooling only models Cooling & electric heating modelsOperation does not switch from Heat to Cool or Cool to Heat Air conditioner operates, but abnormalities are observedPoor cooling or heating Excessive cooling or heatingIf a sensor is defective. Only for heat pump model Room temp. thermistor RTH is defectiveOpen ShortPower Cord and Unit Checking Electrical ComponentsMeasurement of Insulation Resistance Measurement of Insulation Resistance for Electrical PartsChecking Motor Capacitor Checking Fan Motor WindingChecking Compressor Motor Winding Checking ThermistorDisassembly Procedure Removing Front GrilleRemoving Wall Sleeve Removing Electrical Component BoxRemoving Electric Heater Removing Blower Wheel Removing EvaporatorRemoving Condenser Removing Propeller FanRemoving Fan Motor Function Room Temperature ControlCooling Heating Heating Except during defrosting operation Heat Pump Model Model STB0823H1Defrosting Mode Timing Chart Heat Pump Model Model STB0823H1 Defrosting FlowchartDefrosting Operation Heating Appendix Heat Pump Model STB0823H1Fan Switch Sanyo Hvac Service Center

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