Retrofitting R-22 with R-438A Requires Minimal System Changes
Versatile blend suitable for medium- and low-temp refrigeration systems
For many years, R-22 was the refrigerant of choice for commercial and residential air conditioning and heat pump systems. Supermarket refrigeration systems, industrial centrifugal chillers, and industrial cooling applications also used R-22.
R-22 is classified as a hydrochlorofluorocarbon (HCFC), and its molecule contains chlorine, which makes it an ozone-depleting refrigerant. Its ozone-depletion potential (ODP) is 0.055. The R-22 molecule also contains hydrogen, fluorine, and carbon. Its global-warming potential (GWP) is 1,857.