Shinco Service Manual

4. Running mode

4.1. Defrosting

1. Entry condition:

Defrosting starts when meeting one of the following conditions

a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 40 minutes, and the temperature remains consecutively -6°cfor more than 3 minutes

b. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 80 minutes, and the temperature remains consecutively -4°cfor more than 3 minutes

c. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 120 minutes, and the temperature remains consecutively -3°cfor more than 3 minutes

2. .Ending condition of defrosting

If one of following conditions is satisfied, end the defrosting and turn into heating mode: a. The defrost time has reached to 10 minutes.

b. When the temperature of outdoor heat exchanger rises up to 15°C.

3.Defrosting Actions:

 

 

 

 

Max. 10 minutes

 

 

 

20s

 

20 s

 

ON

 

10s

 

 

10S

 

Compressor.

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 way valve

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

Outdoor fan

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.2. Fan-only mode

The outdoor unit doesn’t operation, only the indoor fan runs. The fan speed can be set on HIGH MID LOW, and the louver can be regulated by remote controller.

4.3. Cooling mode

4.3.1Compressor frequency controlling a. Frequency control when starting

Temperature difference= Room temperature (RT)-Set temperature (ST) RT-ST

b. Frequency control during operation

The frequency will change according to the RT-ST, and details see following fig.

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Shinco KFR-25GWZ BM service manual Fan-only mode, Cooling mode

KFR-25GWZ BM, KFR-25GWZ, BM specifications

The Shinco BM and KFR-25GWZ series represent a significant advancement in air conditioning technology, combining efficiency, performance, and user-centric features. Designed for both residential and small commercial applications, these models aim to provide optimal comfort while minimizing energy consumption.

One of the standout features of the Shinco BM series is its impressive energy efficiency rating, which helps to reduce electricity bills while still delivering powerful cooling and heating performance. The models are equipped with advanced inverter technology that allows for variable speed operation. This means that rather than cycling on and off entirely, the compressor adjusts its speed according to the required cooling or heating load. This not only results in a more consistent temperature but also extends the lifespan of the unit.

The KFR-25GWZ model integrates a multi-stage filtration system that ensures cleaner air quality. This system effectively captures dust, allergens, and other airborne particles, promoting a healthier indoor environment. Additionally, these units often feature a self-cleaning function which helps maintain the cleanliness of the internal components, enhancing efficiency and longevity.

User-friendly interfaces are another hallmark of the Shinco series. The remote control and optional Wi-Fi connectivity allow users to monitor and adjust settings from their smartphones or tablets. Features like programmable timers, sleep modes, and multiple fan speeds further enhance convenience.

In terms of design, the KFR-25GWZ is both sleek and modern, making it a perfect fit for various interior aesthetics. Its compact design ensures that it can be installed in a range of spaces without being obtrusive.

The noise levels of both the BM and KFR-25GWZ units are impressively low, making them suitable for bedrooms, offices, and other areas where quiet operation is essential. Enhanced insulation within the units minimizes sound, allowing users to enjoy their space without distraction.

Safety features including automatic restart after a power outage and overcurrent protection make these air conditioners reliable choices for households and businesses alike. Additionally, the environmentally friendly refrigerants used in these models contribute to lower global warming potential, aligning with contemporary sustainability goals.

In conclusion, the Shinco BM and KFR-25GWZ series showcase a blend of innovative technology, energy efficiency, and user-friendly features, making them an excellent choice for those looking to enhance their indoor comfort in a sustainable way.