Sanyo CH0952, CH1852, KHS1852-S service manual Cold draft Prevention Heating

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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.

Max. 10minutes

 

95

 

 

Indoor heat exch.

 

 

coil temp. (¡F)

 

 

77

 

 

Indoor fan

 

Set speed

OFF

LL

 

Standby lamp

 

 

ON

 

OFF

51

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Contents Split System AIR Conditioner When Servicing When Wiring Case of Improper InstallationWhen Installing… When Connecting Refrigerant TubingTable of Contents Appendix Operating Range Temperature Indoor Air Intake Temp Outdoor Air Intake TempUnit Specifications Specifications12,500 Indoor unit KHS1852 Outdoor unit CH1852 Indoor Unit Major Component SpecificationsIndoor unit KHS1251 Indoor unit KHS1852 Outdoor unit CH0951 Outdoor UnitOutdoor unit CH1251 Crank case heater 230V, 20W KHS1852 Other Component SpecificationsOutdoor Unit CH1251 Outdoor Unit CH0951Outdoor Unit CH1852 Unit Dimensional DataIndoor unit KHS0951 / KHS1251 39-3/16 11-7/32 23/32 25/32 Remote control unit 147.5 Outdoor unit CH0951 / CH1251 Outdoor unit CH1852 CH1852 Indoor unit Outdoor unit Refrigerant Flow DiagramRefrigerant Flow Diagram Indoor unit KHS0951 / KHS1251 Outdoor unit CH0951 / CH1251Performance Data Performance ChartsCooling Characteristics Heating CharacteristicsIndoor inlet air Temp. ¡F ¡C 320 230 Air Throw Distance Chart Indoor Unit KHS1251 Indoor Unit KH1852 Cooling Capacity 115V Single phase 60 HzSingle phase 60 Hz 17,000 BTU/h KHS1852 100 Heating CapacityElectrical Data Electrical CharacteristicsIndoor Unit Outdoor Unit Complete Unit Fan Motor 047 045 113 095 Electric Wiring Diagrams To avoid electrical shock hazard, be sure to Outdoor unit CH0951 / CH1251 Outdoor unit CH1852 Printed circuit board POW-KHS095A for KHS0951 Printed circuit board POW-KHS125A for KHS1251 Printed circuit board POW-KHS095B for KHS0951 and KHS1251 Printed circuit board POW-KHS1852 for KHS1852 Top view Installation Site Selection Installation InstructionsHot air Heat source Outdoor unit Obstacle above Non-removable mounting Remote Control Unit Installation PositionMounting on a Wall Removable mountingRemote Control Unit Address SwitchesFinding the Address Switches Switch Positions for Up to 2 UnitsWiring System Diagram Recommended Wire Length and DiameterFunction Room Temperature ControlCooling Heating Dry Operation Dehumidification Automatic Switching between Cooling and HeatingOverload Prevention Heating Freeze Prevention CoolingCold draft Prevention Heating Defrosting Operation Heating Defrosting FlowchartDefrosting Mode Timing Chart Low Temperature Cutff HeatingCheck before and after troubleshooting TroubleshootingCircuit breaker trips or fuse blows Air conditioner does not operateCheck Operation selector switch in the indoor unit Power is not suppliedNeither indoor nor outdoor unit runs Check Timer on the remote control unit Check remote control unitCheck fuse on the indoor PCB Assy Check PCB Assy in either indoor or outdoor unit Check setting temperatureOnly outdoor unit does not run Only indoor unit does not runOnly indoor fan does not run Some part of air conditioner does not operateOnly flap motor does not run Only compressor does not run Only outdoor fan does not runAir conditioner operates, but abnormalities are observed Operation does not switch from Heat to Cool or Cool to HeatExcessive cooling or heating Poor cooling or heatingIndoor coil temp. thermistor TH1 is defective If a sensor is defectiveRoom temp. thermistor TH2 is defective Measurement of Insulation Resistance for Electrical Parts Power Supply WiresChecking Electrical Components Measurement of Insulation ResistanceChecking Motor Capacitor Checking Continuity of Fuse on PCB AssyArrangement of Electrical Component Parts Layout in Unit Outdoor Unit CH0951 / CH1251 / CH1852 Electric PartsAppendix Features Alert Symbols ContentsProduct Information Safety Instructions Installation LocationElectrical Requirements Names of Parts Timer lamp Remote control receiverOFF position does not disconnect the power. Use the main Power switch to turn off power completelySET Temp Button Timer on button HR. Timer buttonTimer on button Timer OFF buttonOrange DRY Cancel buttonGreen or red Auto Red HeatRemote Control Unit Installation Position Using the Remote Control UnitHow to Install Batteries How to Use the Remote Control UnitMounting the Remote Control Unit Using the Remote Control UnitAutomatic Operation Operation with the Remote Control UnitPress the ON/OFF operation button Operation with the Remote Control Unit Manual Operation Temperature is Adjusting the Fan SpeedAutomatic Cooling and DRY mode Heating mode Manual When difference between Room temperature and setNight Setback Mode is used for saving energy Night Setback ModeTime Setting Temperature Min PressButton Heating Mode Setting Temperature Press 30 min``DRY Operation Power failure during operation Clicking SoundRemote Control Unit Special RemarksSetting procedure Using the 12-Hour on and OFF TimerTimer on mode Example Timer OFF mode ExampleHour OFF Timer Using the 1-Hour OFF TimerCombining the 1-Hour OFF Timer and 12-Hour on Timer Sweep function Adjusting the Airflow DirectionSetting the airflow manually Horizontal VerticalKHS1852 Selector Operation Operation without the Remote Control UnitCare and Cleaning OperationHow to replace the anti-mold filter Anti-mold filter How to remove the anti-mold filterAir intake grille KHS0951/KHS1251 Air cleaning filter not providedWater Tips for Energy SavingDo not Removing and remountingOperating Range TroubleshootingFor Parts or Service Contact

KHS1852-S, CH0952, CH1852 specifications

The Sanyo CH0952, CH1852, and KHS1852-S are innovative and versatile air conditioning units designed to deliver efficient cooling and heating solutions for both residential and commercial applications. These models stand out in the market for their advanced technologies, energy efficiency, and user-friendly features.

The Sanyo CH0952 is a compact and highly efficient wall-mounted air conditioner that is ideal for small to medium-sized rooms. One of its main features is the inverter technology, which allows the unit to adjust its cooling or heating output based on the temperature requirements of the space. This not only enhances comfort but also significantly reduces energy consumption, making it an eco-friendly choice.

The CH1852 model builds upon the advantages of the CH0952 but offers an increased capacity suitable for larger areas. Like the CH0952, it is equipped with inverter technology to maintain optimal temperatures with minimal energy use. Additionally, it features a multi-speed fan system, which allows users to select the desired airflow level for personalized comfort. The unit’s quiet operation further enhances the user experience, making it an ideal choice for bedrooms and living spaces.

The KHS1852-S model is a powerful option, designed for heavy usage in both commercial environments and larger residential spaces. It boasts advanced filtration technologies, ensuring the air quality remains high by removing dust, allergens, and other impurities from the air. The KHS1852-S is also equipped with smart technology, allowing for remote control operation via mobile applications. This feature provides additional convenience, enabling users to control their air conditioning settings from anywhere.

All three models are designed with user-friendly controls and clear displays, improving accessibility for all users. Built to last, each unit incorporates durable materials and innovative engineering that offers long-term reliability and maintenance ease.

In summary, the Sanyo CH0952, CH1852, and KHS1852-S air conditioning units exemplify state-of-the-art technology, delivering efficiency, comfort, and convenience. Their inverter technology, multi-speed fan options, advanced filtration systems, and smart control capabilities make them an excellent choice for anyone seeking effective climate control solutions. With these modern features, Sanyo continues to lead in creating efficient and user-friendly air conditioning systems.