TECHNICAL & SERVICE MANUAL STB0810C1 STB1010C1 STB1020C1 STB1220C1 STB0811C1 STB1023C1 STB1123C1 STB0823H1 FILE NO. Destination: U.S.A. SANYO 26˝ THROUGH THE WALL AIR CONDITIONERS & HEAT PUMP COOLING ONLY MODEL COOLING & ELECTRIC HEATING MODEL Model No. Product Code No. Model No. Product Code No.
IMPORTANT! Please Read Before Starting When Installing Place of Installation • If possible, install the unit in a shady location. This air conditioner meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. • Install it at a spot where optimum air circulation can be obtained. No chairs or other obstructions are allowed in front of the air conditioner.
HOW TO USE THIS MANUAL This manual is designed to help service personnel to understand basic functions, operation and possible troubles and their remedies on SANYO 26˝ Through The Wall Air Conditioner. You can use this manual both as a reference to find specific information about the capacity, construction of the unit, and as a source of information to help you set up and maintain the air conditioner.
Table of Contents Page 1. OPERATING RANGE ............................................................................................................................... 1 2. SPECIFICATIONS 2-1. Unit Specifications .......................................................................................................................... 2 2-2. Major Component Specifications ................................................................................................... 4 2-3.
1. OPERATING RANGE ■ COOLING ONLY MODEL Models STB0810C1 STB1010C1 Temperature Cooling STB1020C1 STB1220C1 Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 95°F D.B. / 71°F W.B. 115°F D.B. Minimum 67°F D.B. / 57°F W.B. 67°F D.B. ■ COOLING & ELECTRIC HEATING MODEL Models STB0811C1 STB1023C1 STB1123C1 Cooling Heating Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 95°F D.B. / 71°F W.B. 115°F D.B. Minimum 67°F D.B. / 57°F W.B. 67°F D.B. Maximum 80°F D.B.
2. SPECIFICATIONS 2-1. Unit Specifications Models STB0810C1 STB1010C1 STB1020C1 Model Number STB1220C1 STB0810C1 STB1010C1 STB1020C1 STB1220C1 115 115 230 / 208 230 / 208 Voltage (V) Performance Cooling Capacity Air Flow....Hi Dihumidification BTU/h CFM (CMM) Pints/h Electrical Rating Available voltage range Cooling Amperes Watts Power factor EER Starting amperes Recommeded Circuit Protection 8,200 270 (7.65) 2.0 V A W % BTU/hW A A 104 ~ 126 8.3 940 98 8.
Models STB0811C1 STB1023C1 STB1123C1 Model Number STB0823H1 STB0811C1 STB1023C1 STB1123C1 STB0823H1 115 230 / 208 230 / 208 230 / 208 Voltage (V) Performance Cooling Capacity Heat pump Capacity Electric Heating Capacity Air Flow....
2-2. Major Component Specifications Models STB0810C1 STB1010C1 Model Number STB1020C1 STB1220C1 STB0810C1 STB1010C1 STB1020C1 STB1220C1 Rotary (Hermetic) Rotary (Hermetic) Rotary (Hermetic) Rotary (Hermetic) C-1R62H2D C-R80H2C C-R76H6K C-R95H6C Controller PCB Part No. Controls Control circuit fuse Compressor Type Compressor model ( Parts code No.
Models STB0811C1 STB1023C1 Model Number STB1123C1 STB0823H1 STB0811C1 STB1023C1 STB1123C1 STB0823H1 Controller PCB Part No. 851-0-5171-660-00 Controls POW-STBH Control circuit fuse Compressor Type Compressor model ( Parts code No.
2-3. Other Component Specifications Models STB0810C1 STB0811C1 STB1010C1 STB1023C1 STB1020C1 STB1123C1 STB1220C1 STB0823H1 Room Thermostat YTB-2U136 Model Openrating temp.
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5. PERFORMANCE DATA 5-1. Cooling Capacity Model STB0810C1 115 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB1010C1 115 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB1020C1 230 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB1220C1 230 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB0811C1 115 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB1023C1 230 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB1123C1 230 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
Model STB0823H1 230 V Single phase 60 Hz RATING CAPACITY AIR FLOW RATE EVAPORATOR ENT. TEMP. °F (°C) W.B. D.B. 59 (15.0) 63 (17.2) 67 (19.4) 70 (21.1) 73 (22.8) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 70 (21.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 73 (22.8) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.1) 77 (25.0) 80 (26.7) 84 (28.9) 88 (31.
5-2. Heating Capacity (Heat pump Performance) STB0823H1 Fan speed : High Heating capacity ratio (%) Model 120 110 100 90 80 70 60 50 40 30 20 10 0 17 20 30 40 47 50 60 Outdoor ambient temperature (°F DB) NOTE 1) ● … Point of rating condition Black dot in the chart indicates the following rating condition. Indoor: 70°F (21.1°C) D.B. Outdoor: 47°F (8.3°C) D.B. / 43°F (6.1°C) W.B. 2) Above characteristics indicates heat pump heating operation, which does not include elctric heater operation.
6. ELECTRICAL DATA 6-1. Electrical Characteristics Cooling only models Model STB0810C1 Outdoor Unit Fan Motor Performance at Rating Conditions Compressor 115V 1-phase 60Hz Running Amps. Power Input Full Load Conditions Running Amps. Power Input Model Complete Unit A 1.26 7.04 8.3 kW 0.145 0.795 0.94 A 1.26 8.34 9.6 kW 0.145 0.935 1.08 STB1010C1 Outdoor Unit Fan Motor Performance at Rating Conditions 115V 1-phase 60Hz Running Amps. Power Input Full Load Conditions Running Amps.
Cooling & electric heating models Model STB0811C1 Outdoor Unit Fan Motor Performance at Rating Conditions Compressor 115V 1-phase 60Hz Running Amps. Power Input Full Load Conditions Running Amps. Power Input Model Complete Unit A 1.26 7.04 8.3 kW 0.145 0.775 0.92 A 1.26 8.34 9.6 kW 0.145 0.945 1.09 STB1023C1 Outdoor Unit Fan Motor Performance at Rating Conditions 230 / 208V 1-phase 60Hz Running Amps. Power Input Full Load Conditions Running Amps.
Heat pump model Model STB0823H1 COOLING Outdoor Unit Fan Motor Performance at Rating Conditions Complete Unit Compressor 230 / 208V 1-phase 60Hz Running Amps. Power Input Full Load Conditions Running Amps. Power Input A 0.61 / 0.64 kW 0.142 / 0.132 A 0.61 / 0.64 kW 0.142 / 0.132 3.59 / 3.86 0.798 / 0.788 4.29 / 4.46 0.948 / 0.918 4.2 0.94 4.9 1.09 / 4.5 / 0.92 / 5.1 / 1.05 Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B.
WARNING 6-2.
WARNING Models STB1020C1 To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
WARNING Model To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
WARNING Model STB0823H1 25 To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
WARNING Model To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts. STB0823H1 LAYOUT FOR ELECTRIC PARTS Varistor Main control switch Capacitor (FM) Control switch temp. setting Fan switch Lid Thermistor room temp.
6-3. P.C.B.
7. TROUBLESHOOTING 7-1. Check before and after troubleshooting WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing. 7-1-1. Check power supply. ● Check that voltage is in specified range (±10% of the rating). ● Check that power is being supplied. 7-1-2. Check lead wires and connectors. ● Check that coating of lead wires is not damaged. ● Check that lead wires and connectors are firmly connected.
7-2. Air conditioner does not operate. 7-2-1. Circuit breaker trips (or fuse blows). A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.) ● There is a possibility of ground fault. ● Check insulation resistance. If resistance value is 2MΩ or less, insulation is defective (“NO”). Wall outlet (Receptacle) Power plug 1 Circuit breaker Window type air conditioner Power supply Ground WARNING * Set circuit breaker to OFF. 1 Pull the power plug out of the wall outlet.
B. Circuit breaker trips in several minutes after turning the air conditioner on. ● There is a possibility of short circuit. • Check capacity of circuit breaker. Replace with suitable one (larger capacity). NO Capacity of circuit breaker is suitable. (Only for heat pump model) • Measure resistance of 4-way valve's winding. • Measure resistance of fan motor winding. • Measure resistance of compressor motor winding. 7-2-2. Neither fan motor nor compressor motor runs. A. Power is not supplied.
7-3. Some part of air conditioner does not operate. 7-3-1. Only fan does not run. • Check fan rotation. Turn fan gently once or twice by hand. • Check fan casing foreign matter on inside. Fan cannot be turned. Fan motor burnout or foreign matter in bearings. • Measure resistance of fan motor winding. OK • Check fan motor capacitor and 4P-connectors (Socket and Plug). (Only for heat pump model) • Check PCB Ass'y . (Power pack) 7-3-2. Electric heater does not work.
7-3-3. Only compressor unit does not run. A. Check setting temperature. COOL mode HEAT mode (Only for heat pump model) Is room temperature too low ? Is room temperature too high ? NO NO Try to lower setting temperature by thermostat knob cooler. Try to raise setting temperature by thermostat knob warmer. B. Check compressor and electrical parts. Overload relay is working. (OLR) • Check compressor motor capacitor. YES • Measure resistance of compressor motor winding.
7-4. Air conditioner operates, but abnormalities are observed. 7-4-1. Operation does not switch from HEAT to COOL (or COOL to HEAT). (Only for heat pump model) • Measure resistance of 4–way valve's winding. OK Check PCB Ass'y . (Power pack) 7-4-2. Poor cooling or heating. • Measure temperature of suction and discharge air of air conditioner. Temperature difference is small. Possibility of gas shortage. Charge refrigerant gas (R22).
7-5. If a sensor is defective. (Only for heat pump model) 7-5-1. Room temp. thermistor (RTH) is defective. A. Open When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low room temperature. a) In Cooling mode: The air conditioner soon stops and will not start again. (Thermo.OFF) Compressor does not run. b) In Heating mode: The air conditioner continues to operate. (Thermo.ON) (Heat pump) Electric heater does not stop.
8. CHECKING ELECTRICAL COMPONENTS 8-1. Measurement of Insulation Resistance Power plug ● The insulation is in good condition if the resistance exceeds 2MΩ. Ground Probe 8-1-1. Power Cord and Unit Insulation tester Clamp the grounding prong of the power plug with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the two power blade. (Fig. 1) Fig.
8-2. Checking Motor Capacitor Remove the lead wires from the capacitor terminals, and then place probes on the capacitor terminals as shown in Fig. 4. Observe the deflection of the pointer, setting the resistance measuring range of the multimeter to the maximum value. Multimeter The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to its original position. The range of deflection and deflection time differ according to the capacity of the capacitor. 8-3.
9. DISASSEMBLY PROCEDURE 9-1. Removing Front Grille Wall sleeve Front grille 1) Pull the bottom part of the front grille toward you. (Fig. 1-➀) 2) Lift up and unhook the grille to remove it. (Fig. 1-➁) ➁ ➀ Fig. 1 9-2. Removing Wall Sleeve Wall sleeve (1) While supporting the bottom part of the unit, pull it out of the wall sleeve. (Fig. 2) Unit Fig. 2 9-3. Removing Electrical Component Box Knob (1) Remove knobs and the control panel from the electrical component box.(Fig.
➀ (3) Remove the following screws. (Fig. 5) ➀ 2 screws holding the component box ➁ 2 screws holding the ventilator knob ➂ 1 screw holding the power supply cord ➁ ➂ Fig. 5 (4) Disconnect the wiring connectors and lead wires connecting the following electrical parts in the electrical component box.(Fig. 6) • Compressor motor capacitor • Fan motor capacitor Compressor motor capacitor Fan motor capacitor Fig. 6 9-4.
(3) Lift the electrical heater up out of the unit. (Fig. 9) (4) Remove the 4 screws holding the electric heater and take off the evaporator’s casing plate. (Fig. 10) Electric heater Fig. 9 Fig. 10 9-5. Removing Blower Wheel Blower wheel (1) Remove the electric heater. Refer to “9-4. Removing Electric Heater.” (2) Loosen the bolt holding the blower wheel on the motor shaft. (Fig. 11) Fig. 11 (3) Remove the blower wheel from the unit. (Fig. 12) Blower wheel Fig. 12 9-6.
Condenser casing 9-7. Removing Condenser (1) Remove the screws holding the condenser casing. (Fig. 14) Fig. 14 (2) Remove the screws holding the condenser. (Fig. 15) (3) Hold the lower part of the condenser with both hands and tilt slightly, then lift up carefully to avoid distorting the copper tube. Condenser Fig. 15 9-8. Removing Propeller Fan (1) Remove the condenser. Refer to “9-7. Removing Condenser.” (2) Loosen the bolt holding the propeller fan on the motor shaft. (Fig. 16) Fig.
9-9. Removing Fan Motor (1) Remove the condenser. Refer to “9-7. Removing Condenser.” (2) Remove the propeller fan. Refer to “9-8. Removing Propeller Fan.” (3) Remove the 3 screws of the fan motor mounting plate. (Fig. 18) Fan motor 41 Fig.
10. FUNCTION 10-1. Room Temperature Control Room temperature control is obtained by cycling the compressor ON and OFF. Cooling Only Model Models STB0810C1 STB1010C1 STB1020C1 STB1220C1 ■ Cooling ● Thermo. ON : When the room temperature rises above T + 4°F (T°F is set temperature). Compressor ➞ ON ● Thermo. OFF : When the room temperature falls below set temperature T°F. Compressor ➞ OFF Room temp. T+4 °F set temp.
Cooling & Electric Heating Model Models STB0811C1 STB1023C1 STB1123C1 ■ Cooling ● Thermo. ON : When the room temperature rises above T + 4°F (T°F is set temperature). Compressor ➞ ON ● Thermo. OFF : When the room temperature falls below set temperature T°F. Compressor ➞ OFF Room temp. T+4 °F T °F set temp. Compressor ON ON OFF OFF Set speed Fan motor ■ Heating ● Heater ON : When the room temperature falls below T – 4°F (T°F is set temperature).
Heat Pump Model Model STB0823H1 ■ Cooling ● Once the compressor stops, it will not start running again for about 3 minutes. ● Thermo. ON : When the room temperature rises above T + 1°F (T°F is set temperature). Compressor ➞ ON ● Thermo. OFF : When the room temperature falls below set temperature T°F. Compressor ➞ OFF Room temp. set temp.
10-2. Defrosting Operation (Heating) Heat Pump Model Model STB0823H1 ■ Defrosting Flowchart Compressor ON Temperature of outdoor heat exchanger coil is blow 14°F. NO YES ● ● Defrosting begins Compressor ➞ OFF Electric Heater ➞ ON Temperature of outdoor heat exchanger coil is higher than 39°F.
APPENDIX Control Panel ■ Cooling Only Model Models STB0810C1 STB1010C1 STB1020C1 STB1220C1 THERMOSTAT SELECTOR OFF LOW FAN LOW COOL HIGH FAN HIGH COOL Thermostat Mode selector COOLER ■ Cooling & Electric Heating Model Models STB0811C1 STB1023C1 STB1123C1 THERMOSTAT SELECTOR LOW FAN OFF LOW HEAT HIGH FAN LOW COOL Thermostat WARMER COOLER HIGH HEAT HIGH COOL Mode selector ■ Heat Pump Model Model STB0823H1 THERMOSTAT SELECTOR LOW HEAT HIGH HEAT OFF FAN LOW COOL HIGH COOL Thermostat Mode
Fan Switch The location of Fan Switch differ according to models. When set to CYCLE, fan operation synchronizes with that of compressor's (or heater's) thermo ON and thermo OFF, thereby saving power. When set to CONT, fan continues to operate regardless of thermo ON or thermo OFF condition.
May. / 2001 / 850 Printed in Japan For Parts or Service Contact SANYO HVAC SERVICE CENTER SANYO Fisher Service Company 1165 Allgood Road, Suite 22, Marietta, GA 30062 U.S.A.
