Refrigerant blends are mixtures of refrigerants. These blends have been carefully formulated and mathematically modeled to tailor their characteristics to match certain properties of the refrigerants they are replacing and to provide maximum system efficiency and performance.
In the past, refrigerant blends have been based on chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), and hydrofluorocarbon (HFC) refrigerants. However, because of ozone depletion potential (ODP) and global warming potential (GWP) regulations, most of today’s refrigerant blends are HFC-based and have zero ODP with small GWP impacts to the environment.