Causes of frosting of air source heat pump unit and Countermeasures
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Last Update: 2019-12-29
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Source: Internet
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Author: User
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The air source heat pump absorbs heat from the air, but the evaporation temperature of the refrigerant is very low When the refrigerant passes through the evaporator, it will absorb the heat in the air When the temperature of evaporator is lower than the dew point of air, the surface of evaporator will condense If the ambient temperature is close to or lower than 0 ℃, it is easy to form frost on the surface of evaporator If the main engine is frosted, it needs to be defrosted thoroughly Otherwise, the main engine will freeze, and the more it will get, and enter a vicious cycle, which will cause the main engine to fail to work normally The air source heat pump absorbs heat from the air, but the evaporation temperature of the refrigerant is very low When the refrigerant passes through the evaporator, it will absorb the heat in the air When the temperature of evaporator is lower than the dew point of air, the surface of evaporator will condense If the ambient temperature is close to or lower than 0 ℃, it is easy to form frost on the surface of evaporator If the main engine is frosted, it needs to be defrosted thoroughly Otherwise, the main engine will freeze, and the more it will get, and enter a vicious cycle, which will cause the main engine to fail to work normally Refer to the following table for the frosting reasons and solutions of conventional air source heat pump units:
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