What is the cause of the low pressure part of the compressor of the cold water machine? What is the detailed answer to the refrigeration, the reason of the frost of the cold water machine, why does the cold water machine     frost? How to solve this problem? For your questions, teach you to detect.
    The possible causes of frost formation are as follows:
    1, less refrigerant. Lack of refrigerant, low evaporation temperature cold water machine, when the evaporation temperature is below 0 DEG C, the evaporator fin will frost, frost Dongguan plastic suction machine will affect the ventilation layer, the heat transfer effect of variation of the evaporator, the refrigerant evaporation does not flow back to the trachea and the compressor relay continued to evaporate, so in compressor and the return pipe on the frosting.
    2, dry filter block. The blocking filter for the liquid refrigerant to reduce the amount of cold water machine low evaporation temperature of ground source heat pump evaporator fin evaluation, will not end into the frost, evaporation of the refrigerant return pipe and the compressor to evaporation, therefore, in the compressor and the return pipe of frost.
    3, the expansion valve through small or blocked. The refrigerant liquid supply quantity reduced, low evaporation temperature of the air conditioner, evaporator fin will not end frost, evaporation of the refrigerant compressor to flow back to the trachea and evaporation, therefore, in the compressor and the return pipe of frost.
    4, cold water machine ventilation is not smooth. The utility model has the advantages that the heat transfer effect of the evaporator is poor, and the evaporation of the refrigerant can not continue to flow into the air return pipe and the compressor to continue to evaporate.
    5, the liquid supply pipeline with a dead bend collapse. The refrigerant liquid supply quantity reduced, low evaporation temperature of the air conditioner, evaporator fin will not end frost, evaporation of the refrigerant compressor to flow back to the trachea and evaporation, therefore, in the compressor and the return pipe of frost.
    6, air filter dirty. The utility model has the advantages that the water heater is not well ventilated, the heat transfer effect of the evaporator is poor, and the evaporation of the refrigerant can not be continued to flow into the air return pipe and the compressor to continue to evaporate.
    7, evaporator fins dirty. The utility model has the advantages that the heat transfer effect of the evaporator is poor, and the evaporation of the refrigerant can not continue to flow into the air return pipe and the compressor to continue to evaporate.
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