R-22 Phaseout and Alternative Refrigerants

The major refrigerant manufacturers have identified the following refrigerants as replacements to R-22 in specific applications. Check with your equipment manufacturer to be certain the R-22 replacement you select will work optimally in your equipment and for your application.

Most of these replacements exceed the SNAP delisting threshold for low GWP. Therefore, in accordance with the current SNAP Guidelines and the Kigali Amendment of the Montreal Protocol, they will begin to be phased out for new equipment use, and for some, retrofit use, between 2017 and 2024.

For more information, read the SNAP schedule and the Kigali Amendment of the Montreal Protocol.

Ashrae # Application Type GWP
R-404A Commercial/Industrial/Supermarkets New/Retrofit 3922
R-407A Commercial/Industrial/Supermarkets New/Retrofit 1923
R-407C Commercial/Industrial/Supermarkets New/Retrofit 1744
R-407F Commercial/Industrial/Supermarkets New/Retrofit 1824
R-410A Residential/Commercial/Industrial New 2088
R-417A Residential/Commercial/Industrial Retrofit/Drop In 2346
R-421A Residential Retrofit/Drop In 2600
R-422D Residential/Commercial/Industrial New/Retrofit 2729
R-427A Residential/Commercial/Industrial Retrofit 2024
R-437A Residential/Commercial/Industrial Retrofit 1805
R-438A Residential/Commercial/Industrial Retrofit 2265
R-448A Commercial/Industrial/Supermarkets New/Retrofit 1273
R-449A Commercial/Industrial/Supermarkets New/Retrofit 1282
R-507 Commercial/Industrial/Supermarkets New/Retrofit 3985

 

R-22 Alternative Guide (PDF)