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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.
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..
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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...
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...
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(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...
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(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...
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...
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(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...
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(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...
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 &...
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(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 …...
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(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 …...
(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.
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(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.
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(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.
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.
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.
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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.
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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.
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.
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(2) Indoor unit KHS1852 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
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(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.
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(4) Outdoor unit CH1852 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.
AVOID: direct sunlight. nearby heat sources that may affect performance of the unit.
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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.
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...
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.
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...
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.
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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.
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.
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.
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.
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...
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...
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.
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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.
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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.
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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.
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.
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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.
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.
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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.
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.
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.
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.
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...
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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)
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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.
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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.
• 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 •...
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.
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.
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 –...
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.
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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.
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 •...
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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.
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.
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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.
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.
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,...
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.
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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.
“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.
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.
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.
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.
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...
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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.
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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).
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...
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.
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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...