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    Difference between frequency conversion and fixed frequency of air source heat pump

    Author: Lucy source: Zhengxu air energy published on April 24, 2018 Click: 2473
    We can often hear the frequency conversion and fixed frequency, but I don't know if you have any understanding of this piece. Let's Dongguan air energy factory On the air source heat pump fixed frequency variable frequency this question and you share.
    What is fixed frequency air energy heat pump?
    China's power grid voltage is divided into 220 V, 50 Hz and 380 V, 50 Hz. At present, this kind of product can work under the air voltage condition. Constant frequency air can be heated (cooled) by controlling the operation of the compressor (in short, on or off the compressor). Because the power supply frequency can not be changed, the speed of the compressor with constant frequency air energy will not change. When the temperature reaches the set temperature, the compressor will stop working, otherwise, it will start to work, and the temperature will be adjusted by continuously "starting and stopping" the compressor. It is easy to cause water temperature instability, sometimes cold and hot, and will consume more electric energy. Frequent start-up also affects the service life of the compressor.
    What is variable frequency air source heat pump?
    Variable frequency air source heat pump uses variable frequency controller to change the fixed frequency from 50 Hz to 20 Hz-120 Hz. In this way, according to the environmental conditions, the water temperature can adjust the power supply frequency of the compressor and fan at any time, adjust the speed of the compressor and fan, and realize the stepless speed regulation, so as to use the source reasonably. When the system is started, the current of frequency conversion air is low, which will not impact the power grid and watt hour meter, and can reduce the interference to other indoor electrical appliances in use. The voltage range is 120v-270v, which solves the problem that the voltage instability affects the work. The wider the frequency range is, the more it can operate without shutdown in most working conditions, and the energy saving advantage is obvious.
    About the above Air source heat pump Do you know the difference between frequency conversion and fixed frequency?
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