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Sanyo CH0951 Technical & Service Manual

Split system air conditioner
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Table of Contents
TECHNICAL & SERVICE MANUAL
KHS0951 / CH0951
KHS1251 / CH1251
KHS1852 / CH1852
SPLIT SYSTEM AIR CONDITIONER
Indoor Model No.
KHS0951
KHS1251
KHS1852-S
Indoor Unit
KHS0951
KHS1251
KHS1852
Product Code No.
1 852 069 13
1 852 069 14
1 852 069 15
FILE NO.
Destination: U.S.A.
Outdoor Model No.
Product Code No.
CH0951
1 852 069 16
CH1251
1 852 069 17
CH1852
1 852 069 18
Outdoor Unit
CH0951
CH0952
CH1852
REFERENCE NO.
W
SM
700447

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  Summary of Contents for Sanyo CH0951

  • Page 1 TECHNICAL & SERVICE MANUAL KHS0951 / CH0951 KHS1251 / CH1251 KHS1852 / CH1852 SPLIT SYSTEM AIR CONDITIONER Indoor Model No. Product Code No. KHS0951 1 852 069 13 KHS1251 1 852 069 14 KHS1852-S 1 852 069 15 Indoor Unit...
  • Page 2 Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum fins on the air conditioner can cut your fingers. When Installing… …In a Ceiling or Wall Make sure the ceiling/wall is strong enough to hold the unit’s weight.
  • Page 3: Table Of Contents

    9. TROUBLESHOOTING 9-1. Check before and after troubleshooting... 9-2. Air conditioner does not operate... 9-3. Some part of air conditioner does not operate..9-4. Air conditioner operates, but abnormalities are observed..9-5. If a sensor is defective..
  • Page 4 10. CHECKING ELECTRICAL COMPONENTS 10-1. Measurement of Insulation Resistance ... 10-2. Checking Continuity of Fuse on PCB Ass'y... 10-3. Checking Motor Capacitor ... 11. ARRANGEMENT OF ELECTRICAL COMPONENT... APPENDIX INSTRUCTION MANUAL...
  • Page 5: Operating Range

    1. OPERATING RANGE Temperature Maximum Cooling Minimum Maximum Heating Minimum Indoor Air Intake Temp. Outdoor Air Intake Temp. 95°F D.B. / 71°F W.B. 115°F D.B. 67°F D.B. / 57°F W.B. 67°F D.B. 80°F D.B. / 67°F W.B. 75°F D.B. / 65°F W.B. —...
  • Page 6: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications (1) Indoor unit KHS0951 Outdoor unit CH0951 Voltage Rating Performance Capacity Air circulation (High) Moisture removal (High) Electrical Rating Available voltage range Running amperes Power input Power factor SEER (HSPF) Compressor locked rotor amperes Heater element...
  • Page 7 (2) Indoor unit KHS1251 Outdoor unit CH1251 Voltage Rating Performance Capacity Air circulation (High) Moisture removal (High) Electrical Rating Available voltage range Running amperes Power input Power factor SEER (HSPF) Compressor locked rotor amperes Heater element Features Controls / Temperature control Control unit Timer Fan speeds...
  • Page 8 (3) Indoor unit KHS1852 Outdoor unit CH1852 Voltage Rating Performance Capacity Air circulation (High) Moisture removal (High) Electrical Rating Available voltage range Running amperes Power input Power factor SEER (HSPF) Compressor locked rotor amperes Heater element Features Controls / Temperature control Control unit Timer Fan speeds...
  • Page 9: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Indoor Unit (1) Indoor unit KHS0951 Control PCB Part No. Controls Control circuit fuse Remote Control Unit Fan & Fan Motor Type Q’ty … Dia. and length Fan motor model … Q’ty Nominal output Coil resistance (ambient temp. 68°F (20°C)) Run capacitor Flap Motor Type...
  • Page 10 (2) Indoor unit KHS1251 Control PCB Part No. Controls Control circuit fuse Remote Control Unit Fan & Fan Motor Type Q’ty … Dia. and length Fan motor model … Q’ty Nominal output Coil resistance (ambient temp. 68°F (20°C)) Run capacitor Flap Motor Type Model...
  • Page 11 (3) Indoor unit KHS1852 Control PCB Part No. Controls Control circuit fuse Remote Control Unit Fan & Fan Motor Type Q’ty … Dia. and length Fan motor model … Q’ty Nominal output Coil resistance (ambient temp. 68°F (20°C)) Run capacitor Flap Motor Type Model...
  • Page 12: Outdoor Unit

    2-2-2. Outdoor Unit (1) Outdoor unit CH0951 Control PCB Part No. Controls Control circuit fuse Compressor Type Compressor model Nominal output Compressor oil … Amount Coil resistance (ambient temp. 68°F (20°C)) Safety devices Type Overload relay Run capacitor Crank case heater Fan &...
  • Page 13 (2) Outdoor unit CH1251 Control PCB Part No. Controls Control circuit fuse Compressor Type Compressor model Nominal output Compressor oil … Amount Coil resistance (ambient temp. 68°F (20°C)) Safety devices Type Overload relay Run capacitor Crank case heater Fan & Fan Motor Type Q’ty …...
  • Page 14 (3) Outdoor unit CH1852 Control PCB Part No. Controls Control circuit fuse Compressor Type Compressor model Nominal output Compressor oil … Amount Coil resistance (ambient temp. 68°F (20°C)) Safety devices Type Overload relay Run capacitor Crank case heater Fan & Fan Motor Type Q’ty …...
  • Page 15: Other Component Specifications

    2-3. Other Component Specifications 2-3-1. Indoor Unit (1) Indoor unit KHS0951 Transformer Rating Primary Secondary Thermistor (Coil sensor) Resistance kΩ Thermistor (Room sensor in lamp Ass’y) Resistance kΩ (2) Indoor unit KHS1251 Transformer Rating Primary Secondary Thermistor (Coil sensor) Resistance kΩ...
  • Page 16 2-3-2. Outdoor Unit (1) Outdoor Unit CH0951 PTC Thermistor Ω Resistance at 77°F (25°C) Power Relay (PR) Coil rating Ω Coil resistance at 68°F (20°C) Contact rating Thermostat (Defrost thermo. 23D) Operating temp. °F (°C) Thermostat (Low temp. cutoff 23A) Operating temp.
  • Page 17 (3) Outdoor Unit CH1852 Power Relay (PR) Coil rating Ω Coil resistance at 68°F (20°C) Contact rating Thermostat (Defrost thermo. 23D) Operating temp. °F (°C) Thermostat (Low temp. cutoff 23A) Operating temp. °F (°C) 4-way Valve (Solenoid coil) Coil rating DFU24D1-F DC 24V 650 ±...
  • Page 18: Dimensional Data

    3. DIMENSIONAL DATA 3-1. Unit 3-1-1. Indoor Unit (1) Indoor unit KHS0951 / KHS1251 31-11/16 (805) Drain hose ø23/32 (18) 3-29/32 (99.5) Center of tubing hole (2 places) 2-5/16 (58.5) Narrow tube ø1/4 (6.35) Wide tube 6-31/32 (177) Remote control unit 2-2/5 25/32 (18.5)
  • Page 19 (2) Indoor unit KHS1852 39-3/16 (995) (147.5) 5-13/16 Center of tubing hole (2 places) (147.5) 5-13/16 Drain hose ø18 Narrow tube ø6.35 (1/4") Wide tube ø15.88 (5/8") 7-23/32 (196) 1/8 (3) Remote control unit 2-2/5 25/32 (18.5) (61) Unit : inch (mm)
  • Page 20 3-1-2. Outdoor Unit (1) Outdoor unit CH0951 / CH1251 Air intake 2-ø15/32" 23-15/16" Air discharge 31-2/1" 3-25/32" 15/32" 11-13/32" Narrow tube service valve ø6.35 (1/4") Wide tube service valve CH0951 ø3/8 (9.52) CH1251 ø1/2 (12.7) Unit: inch (mm)
  • Page 21 (2) Outdoor unit CH1852 Air intake 4-ø15/32" 23-15/16" 5-11/32" 15/32" Air discharge 34-21/32" 12-19/32" Narrow tube service valve ø6.35 (1/4") Wide tube service valve ø15.88 (5/8") Unit: inch (mm)
  • Page 22: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor unit KHS0951 / KHS1251 Outdoor unit CH0951 / CH1251 Indoor unit Wide tube O.D. 3/8" (ø9.52 mm) 1/2" (ø12.7 mm) Narrow tube O.D. 1/4" (øø6.35 mm) Indoor unit KHS1852 Outdoor unit...
  • Page 23: Performance Data

    (37.8) Outdoor inlet air D.B. temp. ¡F (¡C) NOTE Overload prevention operates to protect the air conditioner when the outdoor ambient temperature reaches an abnormally high level while in heating mode. (Refer to 8-5. Overload prevention) Points of Rating condition Black dots in above charts indicate the following rating conditions.
  • Page 24 (37.8) Outdoor inlet air D.B. temp. ¡F (¡C) NOTE Overload prevention operates to protect the air conditioner when the outdoor ambient temperature reaches an abnormally high level while in heating mode. (Refer to 8-5. Overload prevention) Points of Rating condition Black dots in above charts indicate the following rating conditions.
  • Page 25 (15.6) Outdoor inlet air D.B. temp. ¡F (¡C) NOTE Overload prevention operates to protect the air conditioner when the outdoor ambient temperature reaches an abnormally high level while in heating mode. (Refer to 8-5. Overload prevention) Points of Rating condition Black dots in above charts indicate the following rating conditions.
  • Page 26: Air Throw Distance Charts

    5-2. Air Throw Distance Chart (1) Indoor Unit KHS0951 Cooling Room air temp. : 80¡F (26.7¡C) Fan speed High Heating Room air temp. : 70¡F (21.1¡C) Fan speed High Horizontal distance (ft.) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°...
  • Page 27 (2) Indoor Unit KHS1251 Cooling Room air temp. : 80¡F (26.7¡C) Fan speed High Heating Room air temp. : 70¡F (21.1¡C) Fan speed High Horizontal distance (ft.) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°...
  • Page 28 (3) Indoor Unit KH1852 Cooling Room air temp. : 80¡F (26.7¡C) Fan speed High Heating Room air temp. : 70¡F (21.1¡C) Fan speed High Horizontal distance (ft.) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°...
  • Page 29: Cooling Capacity

    5-3. Cooling Capacity Indoor Unit KHS0951 Outdoor Unit CH0951 115V Single phase 60 Hz RATING CAPACITY : 9,100 BTU/h EVAPORATOR ENT.TEMP.°F (°C) 72(22.2) 76(24.4) (15.0) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (17.2) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (19.4) 80(26.7) 84(28.9) 88(28.9) 72(22.2)
  • Page 30 Indoor Unit KHS1251 Outdoor Unit CH1251 115 V Single phase 60 Hz RATING CAPACITY : 11,700 BTU/h EVAPORATOR ENT.TEMP.°F (°C) 72(22.2) 76(24.4) (15.0) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (17.2) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (19.4) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (21.7) 80(26.7) 84(28.9)
  • Page 31 Indoor Unit KHS1852 Outdoor Unit CH1852 208 V Single phase 60 Hz RATING CAPACITY : 17,000 BTU/h EVAPORATOR ENT.TEMP.°F (°C) 72(22.2) 76(24.4) (15.0) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (17.2) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (19.4) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (21.7) 80(26.7) 84(28.9)
  • Page 32 Indoor Unit KHS1852 Outdoor Unit CH1852 230 V Single phase 60 Hz RATING CAPACITY : 17,000 BTU/h EVAPORATOR ENT.TEMP.°F (°C) 72(22.2) 76(24.4) (15.0) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (17.2) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (19.4) 80(26.7) 84(28.9) 88(28.9) 72(22.2) 76(24.4) (21.7) 80(26.7) 84(28.9)
  • Page 33: Heating Capacity

    3) Fan speed: High 4) Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system), the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance in conjunction with it.
  • Page 34: Electrical Data

    6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit KHS0951 Outdoor Unit CH0951 COOLING Performance at Rating Conditions Running Amps. Power Input Full Load Conditions Running Amps. Power Input Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B.
  • Page 35 Indoor Unit KHS1251 Outdoor Unit CH1251 COOLING Performance at Rating Conditions Running Amps. Power Input Full Load Conditions Running Amps. Power Input Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B. Outdoor Air Temperature 95°F (35°C) D.B. Full Load Conditions : Indoor Air Temperature 95°F (35°C) D.B.
  • Page 36 Indoor Unit KHS1852 Outdoor Unit CH1852 COOLING Performance at Rating Conditions Running Amps. Power Input Full Load Conditions Running Amps. Power Input Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B. Outdoor Air Temperature 95°F (35°C) D.B. Full Load Conditions : Indoor Air Temperature 95°F (35°C) D.B.
  • Page 37: Electric Wiring Diagrams

    6-2. Electric Wiring Diagrams (1) Indoor unit KHS0951 / KHS1251 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
  • Page 38 (2) Indoor unit KHS1852 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
  • Page 39 (3) Outdoor unit CH0951 / CH1251 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
  • Page 40 (4) Outdoor unit CH1852 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
  • Page 41 (5) Printed circuit board POW-KHS095A (for KHS0951) Top view Bottom view...
  • Page 42 (6) Printed circuit board POW-KHS125A (for KHS1251) Top view Bottom view...
  • Page 43 (7) Printed circuit board POW-KHS095B (for KHS0951 and KHS1251) Top view Bottom view...
  • Page 44 (8) Printed circuit board POW-KHS1852 (for KHS1852) Top view Bottom view...
  • Page 45 (9) Printed circuit board POW-CH095 (for CH0951, CH1251 and CH1852) Top view...
  • Page 46: Installation Instructions

    AVOID: direct sunlight. nearby heat sources that may affect performance of the unit.
  • Page 47 7-1-2. Outdoor Unit AVOID: heat sources, exhaust fans, etc. (Fig. 4) damp, humid or uneven locations. choose a place as cool as possible. choose a place that is well ventilated. allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 5a) CAUTION Install the outdoor unit above snowfall line.
  • Page 48: Remote Control Unit Installation Position

    In direct sunlight Behind a curtain or other place where it is covered More than 26 ft. (8 m) away from the air conditioner In the path of the air conditioner’s airstream Where it may become extremely hot or cold...
  • Page 49: Address Switches

    7-3. Address Switches If you are installing more than 1 indoor unit (up to 2) in the same room, it is necessary for you to assign each unit its own address so each can be operated by its own remote control unit. You assign the addresses by matching the switch positions of each indoor unit with the switch positions of its remote control unit.
  • Page 50: Recommended Wire Length And Diameter

    Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram. The indoor unit draws its power from the outdoor unit. WIRING SYSTEM DIAGRAM CH0951, CH1251 Models Disconnect (Inter-unit) INDOOR UNIT switch Power lines...
  • Page 51: Function

    8. FUNCTION 8-1. Room Temperature Control Cooling Room temperature control is obtained by cycling the compressor ON and OFF under control of the room tem- perature sensor in the remote control unit. The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.
  • Page 52 Heating Room temperature control is obtained by cycling the compressor ON and OFF under control of the room tem- perature sensor in the remote control unit. The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.
  • Page 53: Dry Operation (Dehumidification)

    Dry operation uses the ability of the cooling cycle to remove moisture from the air, but by running at low level to dehumidify without greatly reducing the room temperature. The air conditioner repeats the cycle of turning ON and OFF automatically as shown in the chart below according to the room temperature.
  • Page 54: Freeze Prevention (Cooling)

    8-4. Freeze Prevention (Cooling) This function prevents freezing of the indoor heat exchange coil. When the compressor has been running for 10 minutes or more and the temperature of the indoor heat exchange coil falls below 30°F, the control circuit stops the compressor for at least 6 minutes. The compressor does not start again until the temperature rises above 46°F or 6 minutes has elapsed.
  • Page 55: Cold Draft Prevention (Heating)

    8-6. Cold draft Prevention (Heating) This function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coil have sufficiently warmed up. STANDBY lamp on front of the indoor unit lights up when this function is working. when 10 minutes has elapsed,the fan speed is automatically switched to set speed regardless of indoor heat exchange coil temperature.
  • Page 56: Defrosting Operation (Heating)

    8-7. Defrosting Operation (Heating) Defrosting Flowchart Release of overload prevention (Outdoor fan operates.) Outdoor fan is either operated Indoor heat exchanger coil or stopped for more than 10 temperature drops 1.4¡F per minutes. 6 minutes and it repeats 3 times in succession. Is outdoor fan continuously operating for more than 10 Temperature of indoor heat...
  • Page 57: Low Temperature Cutff (Heating)

    Defrosting Mode Timing Chart Start of defrosting 32 seconds Compressor Outdoor fan 2 seconds Solenoid coil (4 –way valve) Indoor fan Set speed Standby lamp Indoor heat exch. coil 95¡F temp. 77¡F NOTE *1: Refer to "8-6 Cold Draft Prevention". 8-8.
  • Page 58: Troubleshooting

    9-1-4. Check lead wires and connectors in indoor and outdoor units. Check that coating of lead wires is not damaged. Check that lead wires and connectors are firmly connected. Check that wiring is correct. Outdoor unit Power supply : Single- phase, 60Hz 115V...CH0951,CH1251 Inter–unit 230/208V...CH1852 control wiring Ground Ground...
  • Page 59: Air Conditioner Does Not Operate

    9-2. Air conditioner does not operate. 9-2-1. 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.
  • Page 60 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. Capacity of circuit breaker is suitable. Measure resistance of outdoor fan • motor winding.
  • Page 61 C. Check remote control unit. • Try to run with another remote control unit. First remote control unit is defective. • Check for residue buildup on transmitter of remote control unit. • Check for residue buildup on remote control receiver on front of indoor unit.
  • Page 62 9-2-3. Only outdoor unit does not run. A. Check setting temperature. COOL Is room temperature too low ? Try to lower setting temperature by temperature setting button ( button). Outdoor unit still does not run. • Try to run using another remote control unit.
  • Page 63: Some Part Of Air Conditioner Does Not Operate

    9-3. Some part of air conditioner does not operate. 9-3-1. Only indoor fan does not run. • Check fan rotation. Turn fan gently once or twice by hand. • Measure resistance of indoor fan motor winding. • Check fan motor capacitor.
  • Page 64 9-3-4. Only outdoor fan does not run. • Check fan rotation. Turn fan gently once or twice by hand. • Measure resistance of indoor fan motor winding. • Check fan motor capacitor. 9-3-5. Only compressor does not run. • Check compressor motor capacitor.
  • Page 65: Air Conditioner Operates, But Abnormalities Are Observed

    9-4. Air conditioner operates, but abnormalities are observed. 9-4-1. Operation does not switch from HEAT to COOL (or COOL to HEAT). • Remote control unit may be defective. • Measure resistance of 4–way valve's winding. COOL HEAT • Check voltage between terminals No.
  • Page 66 9-4-2. Poor cooling or heating. • Check position of remote control unit. • Cool or warm air from air conditioner reaches position directly. • Wide and narrow tubes between indoor unit and outdoor unit are insulated. • Measure temperature of suction and discharge air of air conditioner.
  • Page 67: If A Sensor Is Defective

    9-5-1. Indoor coil temp. thermistor (TH1) is defective. A. Open When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low indoor coil temperature. In Cooling mode: Function of freeze prevention continues to work. That is, the controller turns both compressor and outdoor fan motor periodically ON and OFF for several minutes.
  • Page 68: Checking Electrical Components

    10. CHECKING ELECTRICAL COMPONENTS 10-1. Measurement of Insulation Resistance The insulation is in good condition if the resistance exceeds 2M½. 10-1-1. Power Supply Wires Clamp the ground wire of the power supply wires with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires.
  • Page 69: Checking Continuity Of Fuse On Pcb Ass'y

    10-2. Checking Continuity of Fuse on PCB Ass'y Remove the PCB Ass’y from the electrical compo- nent box. Then pull out the fuse from the PCB Ass’y. (Fig. 5) Check for continuity using a multimeter as shown in Fig. 6. 10-3.
  • Page 70: Arrangement Of Electrical Component

    11. ARRANGEMENT OF ELECTRICAL COMPONENT Indoor Unit KHS0951 / KHS1251 Coil temp. thermistor Room temp. thermistor Indoor Unit KHS1852 Coil temp. thermistor Room temp. thermistor Controller B Controller A (PCB Ass'y B) (PCB Ass'y A) Transformer Terminal base Lamp Ass'y Flap motor Fan motor capacitor Transformer...
  • Page 71 Outdoor Unit CH0951 / CH1251 / CH1852 Electric Parts Power relay Fan motor capacitor Compressor motor capacitor Parts Layout in Unit Thermostat (Low temp. cut-off) Fan Motor Terminal base PTC Thermistor (Only for 115V models) UNIT CONTROLLER Controller (PCB Ass'y)
  • Page 72: Appendix Instruction Manual

    INSTRUCTION MANUAL APPENDIX KHS0951 + CH0951 KHS1251 + CH1251 KHS1852 + CH1852...
  • Page 73 This air conditioner is equipped with cooling, heating and drying functions. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation The interior compartment of the remote control unit contains several features to facilitate automatic operation, easy logically displayed for easy use.
  • Page 74 Troubleshooting... 26 Operating Range ... 26 Product Information If you have problems or questions concerning your Air Conditioner, you will need the following information. Model and serial numbers are on the nameplate on the bottom of the cabinet. Model No.
  • Page 75: Installation Location

    • This air conditioner has no ventilator for intaking fresh air from CAUTION • Do not turn the air conditioner on and off from the power mains • Do not stick anything into the air outlet of the outdoor unit. This is •...
  • Page 76: Names Of Parts

    OUTDOOR UNIT This illustration is based on the external appearance of a standard model. Consequently, the shape may differ from that of the air conditioner which you have selected. This air conditioner consists of an indoor unit and an outdoor unit.
  • Page 77: Unit Display And Operation Selector

    STANDBY lamp This section picks up infrared signals from the remote control unit (transmitter). This position is for operating the air conditioner with the wireless remote control unit. Set the selector normally in this position. Switch the selector to the OFF position if you are not going to use the air conditioner for a few days or longer.
  • Page 78: Remote Control Unit (Display)

    Remote Control Unit (Display) SET TEMP. (1) Operation mode AUTO... HEAT... MILD DRY... COOL ... (2) Fan speed AUTO... HIGH ... MEDIUM... LOW... OI-202-09EG Displayed when setting temperature Displayed when transmitting data Displayed when setting timer Symbols (3) Temperature setting 60 –...
  • Page 79: Remote Control Unit

    TEMP. setting buttons Press the Press the ON/OFF operation This button is for turning the air conditioner on and off. button TIMER ON button TIMER OFF button Transmitter SET TEMP.
  • Page 80 Press this button to cancel the current timer setting. The address switch changes to prevent mixing of signals from remote control units when two Sanyo air conditioners are installed next to each other. Normally, the address switch is set to A. When switching the address, the remote control unit must be changed to B.
  • Page 81: Using The Remote Control Unit

    Remote Control Unit The remote control unit may be operated either from a non-fixed position or from a wall-mounted position. To ensure that the air conditioner operates Installation Position correctly, DO NOT install the remote control unit in the following places: DO NOT •...
  • Page 82 1) Momentarily hold the remote control unit at the desired mounting position. 2) Confirm that the air conditioner responds correctly when you press keys on the remote control from that position. 3) After confirming correct operation, use a screwdriver to screw the mounting screw into the wall.
  • Page 83: Operation With The Remote Control Unit

    ON position. Once the below, you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON/OFF operation button. To stop the air conditioner, press the ON/OFF operation button again.
  • Page 84 To raise the temperature setting To lower the temperature setting • Although the fan speed is set automatically, you can change the fan speed by pressing the FAN SPEED selector button. To stop the air conditioner, press the ON/OFF operation button again.
  • Page 85: Manual Operation

    If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired. To stop the air conditioner, press the ON/OFF operation button again. SET TEMP. 1HR.
  • Page 86: Adjusting The Fan Speed

    When the power is restored, the unit will restart automatically after five minutes. Simply set the FAN SPEED selector button to the A microcomputer in the air conditioner automatically controls the fan speed when the mode is selected. When the air conditioner starts operating,...
  • Page 87: Night Setback Mode

    Operation with the Remote Control Unit (continued) 4. Night Setback Mode The Night Setback Mode is used for saving energy. Press the NIGHT SETBACK button while the air conditioner is operating. To cancel the night setback function, press the NIGHT SETBACK button again.
  • Page 88 OI-202-19EG Operation with the Remote Control Unit (continued) When the night setback mode is selected, the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection was made, and then another 2 F after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected.
  • Page 89: Special Remarks

    “DRY” operation is not possible if the indoor temperature is 59 F or less. Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system), the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance in conjunction with it.
  • Page 90: Using The 12-Hour On And Off Timer

    Using the 12-Hour ON and OFF Timer After the length of time set for TIMER ON elapses, the unit begins operating. The display depicted at left indicates that the air conditioner will begin operating in three hours. Setting procedure: STEP 1 Press the MODE selector button and select the desired operation mode.
  • Page 91: Using The 1-Hour Off Timer

    1. 1-Hour OFF Timer 1HR. TIMER TEMP. FLAP FAN SPEED MODE NIGHT CANCEL SETBACK BATTERIES NOTE 2. Combining the 1-Hour OFF Timer and 12-Hour ON Timer 1HR. TIMER TEMP. FLAP FAN SPEED MODE NIGHT CANCEL SETBACK BATTERIES NOTE Using the 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when the button is pressed.
  • Page 92: Adjusting The Airflow Direction

    1. Horizontal CAUTION 2. Vertical 1HR. TIMER TEMP. FLAP FAN SPEED MODE NIGHT CANCEL SETBACK BATTERIES A. Sweep function The flap starts moving up and down to deliver air over the sweep range. NOTE CAUTION OI-202-23EG Adjusting the Airflow Direction The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right.
  • Page 93: Operation Without The Remote Control Unit

    If you have lost the remote control unit or it has trouble, follow the steps below. 1. When the air conditioner is not running TEST If you want to turn on the air conditioner, switch the operation selector to the OFF position, and then to the ON position. Operation NOTE...
  • Page 94 Anti-mold filter How to remove the anti-mold filter Cleaning How to replace the anti-mold filter OI-202-23EG Care and Cleaning (continued) The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks. 1. Grasp both ends of the air intake grille and pull it out and up.
  • Page 95 KHS0951/KHS1251 NOTE The air cleaning filter is not provided with the air conditioner and must be purchased separately. The first time that you buy the air clean filter, it is necessary to get the STK-ARF4B model with frame. When changing the filter subsequently, it is only necessary to replace the filter itself (model STK-F4B).
  • Page 96: Tips For Energy Saving

    Removing and remounting the air intake grille CAUTION Washing the grille with water Do not OI-202-23EG Care and Cleaning (continued) • With the air intake grille open all the way, grip both arms with your hands and pull toward you to remove. To remount, hold the air intake grille roughly horizontal and push it in until...
  • Page 97: Troubleshooting

    If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Trouble Air conditioner does not run 1. Power failure. at all.
  • Page 98 For Parts or Service Contact SANYO FISHER SERVICE CORPORATION A DIVISION OF SANYO LOGISTICS CORPORATION 1411 West 190th Street, Suite 800, Gardena, CA 90248 U.S.A. 50 Beth Nealson Drive, Toronto, Ontario, M4H 1M6, CANADA...

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