1、 Compressor return air frosting Due to a small amount of refrigerant, the low evaporation pressure of the evaporator leads to a low evaporation temperature, which gradually leads to condensation in the evaporator to form an insulation layer and transfer the expansion point to the compressor return air, resulting in frost formation in the compressor return air. Both of the above points will show evaporator frost before the compressor return air frosts.
To extend the shelf life of food and maintain its freshness, it is necessary to reduce the construction of large cold storage. A good large cold storage must pay attention to some precautions during the construction process in order to present a good cooling effect. Precautions for construction of large cold storage: