An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Since its initial recognition in 1928 and commercialization in 1936, R-22 has been applied in systems ranging from the smallest window air conditioners to the largest chillers and heat pumps, including those for district cooling and heating. Individual equipment using this versatile refrigerant ranges from 2 kW to 33 MW (0.5 to 9,500 tons) in cooling capacity. R-22 use includes equipment with rotary-rolling-piston, reciprocating-piston, scroll, screw, and centrifugal compressors and experimentally, absorption cycles. No other refrigerant has achieved such a wide range of commercial capacities or applications.
Citation
Journal of St. Petersburg State Academy of Refrigerating and Food Technologies
Calm, J.
and Domanski, P.
(2008),
R-22 Replacement Status (in Russian), Journal of St. Petersburg State Academy of Refrigerating and Food Technologies, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=861566
(Accessed October 31, 2024)