The operation of air source heat pumps is much harsher in winter heating conditions compared to summer cooling conditions. In winter, we have to consider the impact of extreme low temperature on the heat transfer performance of the unit, and even more so, we have to consider frost, freezing and other issues. Juteng stainless steel air source heating unit to winter heating conditions as a starting point for the design, in the core accessories and low-temperature operation technology, enhance the winter heating performance, to ensure stable and efficient operation of the unit in winter, so that the entire heating system more energy efficient and comfortable.
Juteng stainless steel air source heating unit
4 Technical Points to Handle Ultra-low Temperature in North China
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■ Low-temperature powerful compressors for heat pumps
Compressor is the core power source of air source heat pump, general compressor can not adapt to the ultra-low temperature environment in the north, Juteng stainless steel air source using international brands of heat pumps dedicated to low-temperature compressor, can be in the ultra-low-temperature environment of high-efficiency operation, rapid heating, shorten the user's waiting time, and the temperature of the water can be accurately controlled, a high degree of comfort.
■ Ultra-low temperature operating range
The most effective way to cope with the ultra-low temperature environment is that the equipment itself can adapt to this working environment. Juteng stainless steel air source for the northern cold environment research and development production of ultra-low temperature heating heat pump, to adapt to a wide range of operation, the system can be as low as -35 ℃ ultra-low outdoor temperature in the case of efficient heating. The wide operating range is sufficient to cope with the absolute large areas in the north to meet the winter heating needs of local users.
■ Anti-freezing protection
In addition to the frost problem, the air source heat pump heating unit should pay more attention to the anti-freezing protection. Juteng stainless steel air source anti-freeze protection technology, standby state, if the system water temperature is too low, the unit starts the circulating water pump for anti-freeze cycle; water temperature exceeds the safety parameters, the unit starts the heating anti-freeze cycle until the water temperature rises back to the preset safety value. It should be noted that, if the need for power failure, the system water temperature will continue to fall with the ambient temperature, then you can open the manual water drain valve, located in the upper part of the set of plate heat exchanger inside the water drain, to prevent freezing the unit.
■ Intelligent defrost technology
Winter heat pump frost is a common problem, Juteng stainless steel air source heating unit with intelligent frost technology, through accurate judgement of the frost situation, intelligent defrost mode, the maximum concentration of system heat to melt the frost layer, shorten the defrost time, to avoid the defrost is not exhaustive or frequent defrost and other issues, in the harsh low-temperature environment, heating, but also can be set up to manually force the defrost, double guarantee unit operation is more stable.
