Sanyo CH1852, CH0952, KHS1852-S Freeze Prevention Cooling, Overload Prevention Heating

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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.

Thermo. OFF

 

Room temp.

 

 

 

Thermo. ON

T + 4 ¡F

 

 

 

 

 

 

Set temp. T ¡F

 

 

 

 

 

 

Indoor heat exch.

 

 

 

 

More than

 

 

6 minutes

 

 

6 minutes

 

coil temp.

 

 

 

 

 

 

 

 

 

 

30 ¡F

More than

 

 

More than

 

 

 

 

 

 

 

 

10 minutes

 

 

10 minutes

 

 

Compressor

ON

OFF

ON

ON

OFF

ON

Indoor fan

 

Set speed

 

 

Set speed

 

8-5. Overload Prevention (Heating)

This function prevents overheating of the indoor heat exchange coil.

When the temperature of the indoor heat exchange coil rises above 139°F, and if the indoor fan is L (low speed), then the fan speed changes from L (low speed) to M (medium speed).

When the temperature of the indoor heat exchange coil rises above 141°F, the outdoor fan stops.

141

139

Indoor heat

exch. coil temp. ¡F 126

120

Outdoor fan

ON

OFF

ON

Indoor fan

H or M or L

H H, M M, L M

Compressor

ON

50

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Contents Split System AIR Conditioner When Connecting Refrigerant Tubing Case of Improper InstallationWhen Installing… When Servicing When WiringTable of Contents Appendix Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Operating RangeSpecifications Unit Specifications12,500 Indoor unit KHS1852 Outdoor unit CH1852 Major Component Specifications Indoor UnitIndoor unit KHS1251 Indoor unit KHS1852 Outdoor Unit Outdoor unit CH0951Outdoor unit CH1251 Crank case heater 230V, 20W Other Component Specifications KHS1852Outdoor Unit CH0951 Outdoor Unit CH1251Outdoor Unit CH1852 Dimensional Data UnitIndoor 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 Indoor unit KHS0951 / KHS1251 Outdoor unit CH0951 / CH1251 Refrigerant Flow DiagramRefrigerant Flow Diagram CH1852 Indoor unit Outdoor unitHeating Characteristics Performance ChartsCooling Characteristics Performance DataIndoor inlet air Temp. ¡F ¡C 320 230 Air Throw Distance Chart Indoor Unit KHS1251 Indoor Unit KH1852 115V Single phase 60 Hz Cooling CapacitySingle phase 60 Hz 17,000 BTU/h KHS1852 Heating Capacity 100Electrical Characteristics Electrical DataIndoor 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 Instructions Installation Site SelectionHot air Heat source Outdoor unit Obstacle above Removable mounting Remote Control Unit Installation PositionMounting on a Wall Non-removable mountingSwitch Positions for Up to 2 Units Address SwitchesFinding the Address Switches Remote Control UnitRecommended Wire Length and Diameter Wiring System DiagramRoom Temperature Control FunctionCooling Heating Automatic Switching between Cooling and Heating Dry Operation DehumidificationFreeze Prevention Cooling Overload Prevention HeatingCold draft Prevention Heating Defrosting Flowchart Defrosting Operation HeatingLow Temperature Cutff Heating Defrosting Mode Timing ChartTroubleshooting Check before and after troubleshootingAir conditioner does not operate Circuit breaker trips or fuse blowsPower is not supplied Check Operation selector switch in the indoor unitNeither indoor nor outdoor unit runs Check remote control unit Check Timer on the remote control unitCheck fuse on the indoor PCB Assy Only indoor unit does not run Check setting temperatureOnly outdoor unit does not run Check PCB Assy in either indoor or outdoor unitSome part of air conditioner does not operate Only indoor fan does not runOnly flap motor does not run Only outdoor fan does not run Only compressor does not runOperation 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 Indoor coil temp. thermistor TH1 is defectiveRoom temp. thermistor TH2 is defective Measurement of Insulation Resistance Power Supply WiresChecking Electrical Components Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy Checking Motor CapacitorArrangement of Electrical Component Outdoor Unit CH0951 / CH1251 / CH1852 Electric Parts Parts Layout in UnitAppendix Features Contents Alert SymbolsProduct Information Installation Location Safety InstructionsElectrical Requirements Names of Parts Power switch to turn off power completely Remote control receiverOFF position does not disconnect the power. Use the main Timer lampSET Temp Timer OFF button HR. Timer buttonTimer on button Button Timer on buttonRed Heat Cancel buttonGreen or red Auto Orange DRYHow to Use the Remote Control Unit Using the Remote Control UnitHow to Install Batteries Remote Control Unit Installation PositionUsing the Remote Control Unit Mounting the Remote Control UnitOperation with the Remote Control Unit Automatic OperationPress the ON/OFF operation button Operation with the Remote Control Unit Manual Operation When difference between Room temperature and set Adjusting the Fan SpeedAutomatic Cooling and DRY mode Heating mode Manual Temperature isNight Setback Mode Night Setback Mode is used for saving energySetting Temperature Press 30 min Setting Temperature Min PressButton Heating Mode TimeSpecial Remarks Power failure during operation Clicking SoundRemote Control Unit ``DRY OperationTimer OFF mode Example Using the 12-Hour on and OFF TimerTimer on mode Example Setting procedureUsing the 1-Hour OFF Timer Hour OFF TimerCombining the 1-Hour OFF Timer and 12-Hour on Timer Horizontal Vertical Adjusting the Airflow DirectionSetting the airflow manually Sweep functionOperation Operation without the Remote Control UnitCare and Cleaning KHS1852 Selector OperationAnti-mold filter How to remove the anti-mold filter How to replace the anti-mold filterAir intake grille Air cleaning filter not provided KHS0951/KHS1251Removing and remounting Tips for Energy SavingDo not WaterTroubleshooting Operating RangeFor 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.