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.

Signal from remote control unit

 

More than

3 minutes

3 minutes

3 minutes

3 minutes

3 minutes

3 minutes

 

 

5 minutes

 

 

 

 

Thermo.

Thermo.

 

Thermo.

 

 

Thermo.

 

 

 

ON

 

OFF

 

ON

 

 

OFF

set temp.

T ¡F

 

 

 

 

 

 

 

 

 

 

T – 2 ¡F

 

 

 

 

 

 

 

 

 

 

T – 4 ¡F

 

 

 

 

 

 

 

 

 

 

 

 

5 minutes

5 minutes

 

 

Room temp.

 

 

 

 

 

 

 

 

 

 

 

Compressor

OFF

 

ON

 

OFF

 

ON

 

OFF

Outdoor fan

OFF

 

ON

 

OFF

 

ON

 

OFF

 

 

 

 

30 seconds

 

 

 

 

30 seconds

Indoor fan

OFF

LL

Set speed

LL

 

Set speed

LL

 

 

 

*1

 

 

 

 

 

 

 

Standby lamp

OFF

ON

 

OFF

ON

 

OFF

ON

Indoor heat exch. coil temp.

*1

95 ¡F

 

77¡F

Solenoid coil

OFF

ON ( Reversing cycle )

(4 – way valve)

Operation button

OFF

ON

The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 5 minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant pres- sure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.

As a protective measure, the control circuit switches the compressor OFF after 5 minutes or more of compressor operation.

Thermo. ON : When the room temperature is below T – 2°F (T°C is set temperature).

Compressor ON

Thermo. OFF : When the room temperature is equal to or above set temperature T°F. Compressor OFF

NOTE

*1: Refer to "8-6 Cold Draft Prevention".

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Sanyo CH0952, CH1852, KHS1852-S service manual Heating

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.