Defrost detection and release

Non-Stop Defrosting

Defrosting Sequence

Heating operation

Outdoor fan ON

4-way valve Heating mode

Frost sensing

Frosting is assumed according to the outdoor

temp.,outdoor

Outdoor heat exchanger temp.

heat exchanger

0

temp.,and

Ambient temp.

 

operation time.

 

 

Frosting

 

area

Non-stop defrosting

Compressor

ON

2-way valve ON

Outdoor fan

OFF

 

Indoor fan

OFF

 

4-way valve

Heating mode

 

Releasing of defrosting

Outdoor heating exchanger temp. is over 14 C.

Defrosting operation lasts 12 minutes (maximum). 4-way valve is Heating mode. Outdoor fan is ON. 2-way valve OFF

NOTE

If the air conditioner is turned off during the defrosting cycle, it will continue defrosting and turn itself off after defrosting is completed.

CT (Peak current cut-off control)

This function prevents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due to an increase in the cooling / heating load, or to a decrease in the power supply voltage. In these cases, operation frequency is reduced or operation is interrupted auto- matically to control the electrical current for operation.

When the cause of the increase in electrical current is rectified, the system will resume operation in the original mode.

(A)

 

Cooling

Dry Heating

Peak current cut-off trips

 

17.5

Hz down

12.2

14.0

 

 

 

NOTE Electrical current setting for COOL operation is used during DEFROST operation.

Operation Cut-Off Control in abnormal ambient temperature

The following three protective actions are available to prevent the compressor from operating with abnormal loads.

At that time, they initiate thermo-off (stopping the outdoor unit) of the air conditioner.

Mode : Cooling

Cut-off action

Thermo-off

Thermo-on

t : ambient temp

t : ambient temp

 

Low ambient temp.

t -22 C

t > -18 C

cut-off

 

 

Mode : Heating

Cut-off action

Thermo-off

Thermo-on

t : ambient temp

t : ambient temp

 

High ambient temp.

t

 

25 C

t < 24 C

cut-off

 

 

 

 

 

Low ambient temp.

t

 

-20 C

t > -16 C

cut-off

 

 

 

 

 

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Sanyo SAP-KRV94EHDX service manual Non-Stop Defrosting, Mode Cooling, Mode Heating

SAP-KRV94EHDX specifications

The Sanyo SAP-KRV94EHDX is a cutting-edge split-type air conditioning unit that exemplifies advanced technology and efficiency. Designed for both residential and commercial spaces, this model is equipped with features that cater to various cooling and heating needs.

One of the main highlights of the Sanyo SAP-KRV94EHDX is its energy efficiency. With a high Energy Efficiency Ratio (EER), this unit minimizes energy consumption while maximizing cooling performance. This not only results in lower electricity bills but also contributes to a reduced carbon footprint, making it an environmentally friendly choice for users.

The SAP-KRV94EHDX employs inverter technology, which allows the compressor to adjust its speed dynamically based on the temperature requirements of the environment. This means that the unit operates more quietly and uses less energy when maintaining a consistent temperature. The inverter system ensures that the air conditioner can quickly reach the desired cooling or heating temperature and maintain it without the frequent on-off cycles typical of traditional units.

Additionally, the air conditioning unit comes with a powerful cooling capacity, effectively managing larger spaces. It can easily handle varying ambient conditions while providing rapid cooling in extremely warm weather, making it perfect for areas with hot climates.

Other notable features include a user-friendly remote control, allowing users to adjust settings from a distance effortlessly. The unit also incorporates a multi-stage air filtration system designed to remove dust, allergens, and other airborne particles, contributing to better indoor air quality.

The Sanyo SAP-KRV94EHDX is not just about functionality; it also boasts a sleek and modern design that blends seamlessly with various interior aesthetics. Its quiet operation ensures that it does not disturb daily activities, making it suitable for bedrooms, offices, and living spaces.

Moreover, the unit comes with various operational modes, including cooling, dehumidification, and a heating function. This versatility makes the SAP-KRV94EHDX an all-season solution for climate control.

In summary, the Sanyo SAP-KRV94EHDX is a top-tier air conditioning unit that combines efficiency, advanced technology, and user convenience. Its inverter technology, multi-stage air filtration, and modern design make it a reliable choice for anyone seeking comfort throughout the year.