History of Refrigerants

A bit of the history of refrigerant changes:

  • A phase-out of R-22 refrigerant by the EPA/Environmental Protection Agency included a ban on the production and import of this refrigerant beginning around 2010.

  • This phase-out caused the HVACR industry to redesign systems to accommodate R-410A (which is a chlorine-free refrigerant.)

  • Due to global warming regulations, another amendment (Kigali) was proposed to begin in the 2020s to further phase down the use of high GWP refrigerants such as R-410A, with the leading replacement being Mildly Flammable A2L’s such as R-32, R454B, and R452B to name a few.  This means changes to install, service, storage, transporting, recovering, charging, and handling – not to mention the tools you will need to do these tasks will now need to be listed to handle those AL2 refrigerants.

  • The purpose of this directive was to increase energy efficiency and reduce greenhouse emissions under the GWP initiatives (global warming potentials.)

  • The EPA/Environmental Protection Agency has formed a SNAP Program (Significant New Alternatives Policy) under Section 612 of the Clean Air Act which requires the EPA to evaluate substitutes for ozone-depleting substances

  • Additional phase-outs and/or bans of several common refrigerants such as R134a, R410A, and R407C are expected to go into effect over the next few years.