The heat pump is prone to frost between +4~-4℃. The symptoms and reasons are not beyond these 10 points.

The heat pump is prone to frost between +4~-4℃. The symptoms and reasons are not beyond these 10 points.

The air source heat pump can use the low-grade heat energy in the ambient air, so it has the dual advantages of energy saving and environmental protection. However, one of the problems is that the evaporator will frost when heating in areas with low temperature and high relative humidity. . The greater the relative humidity of the air, the more severe the frost on the coil.

The heat pump is prone to frost between +4~-4℃. The symptoms and reasons are not beyond these 10 points.

　　 Generally speaking, when the relative humidity of outdoor air is less than 50%, frost is rarely formed. When the outdoor air temperature is lower than -5°C, the absolute moisture content in the air is small and frost formation is reduced. When the ambient temperature is between +4~﹣4℃ and the relative humidity is >85%, frosting z* is serious, and the higher the humidity, the more frosting, and the number of defrosting per day.

　　 Generally speaking, frosting of air energy heat pumps is normal. General heat pump products have automatic frosting function to ensure the normal operation of the unit. Most dealers, especially novices, don't have to panic when they see defrosting. However, if it is severe, the frost layer will increase the air flow resistance, resulting in a decrease in the flow of the fan, deteriorating the performance of the air source heat pump system, and even affecting its normal operation, causing accidents such as the burning of the compressor. The performance and solution of the fault is nothing more than the following.