Calculated Analysis on Substitution of Refrigerant R407C for Refrigerant R22

The paper discusses the development process of the refrigerant and the updates of the refrigerant.At the same time,the paper focuses on the substitution of refrigerant R407C for refrigerant R22 which is based on calculations of working conditions.Based on the production practice,the paper puts forward management measures to overcome the influence caused by refrigerant substitution in the whole refrigeration system.