![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Acceptable Substitutes in Industrial Process Air Conditioning
Substitutes are reviewed on the basis of ozone depletion potential, global warming potential, toxicity, flammability, and exposure potential. Lists of acceptable and unacceptable substitutes are updated several times each year. A chronological list of SNAP updates is also available.
Unacceptable substitutesNote: SNAP-related information published in the Federal Register takes precedence over all information on this page.
Acceptable Substitutes for CFCs (class I ODS) in Industrial Process Air Conditioning
| Substitute (Name Used in the Federal Register) | Trade Name | Refrigerant Being Replaced | Retrofit/ New |
|---|---|---|---|
| HCFC-124 | 114 | R, N | |
| Ikon A | 12 | R, N | |
| Ikon B | 12 | R, N | |
| THR-02 | 12 | R, N | |
| HCFC-22 | 114 | N (below 115 degrees F ambient) | |
| HFC-134a | 114 | N (below 125 degrees F ambient) | |
| R-401A, R-401B | MP-39, MP-66 | 114 | R |
| FOR12A | FOR12A | 12 | R, N |
| FOR12B | FOR12B | 12 | R, N |
| Hot Shot (HCFC Blend Omicron) | Hot Shot, Kar Kool, 414B | 112, 114 | R, N |
| RS-24 (2002 formulation) | 12 | R, N | |
| Isceon 59, NU-22, R-417A | Isceon 59, NU-22 | 12 | R, N |
| R-407C | Suva 407C, Klea 407C | 502 | R, N |
| R-420A | Choice R-420A | 12, 500 | R, N |
| R-421B | Choice R421B | 12, 502 | R, N |
| R-426A | RS-24 | 12 | R, N |
| R-422C | ICOR XLT1 | 502 | R, N |
| HFC-245fa | Genetron® 245fa | 114 | R, N |
| KDD6 | KDD6 | 12 | R, N |
Key: R = Retrofit Uses, N = New
Uses
Acceptable Substitutes for HCFCs (class II ODS) in Industrial Process Air Conditioning
| Substitute (Name Used in the Federal Register) | Trade Name | Refrigerant Being Replaced | Retrofit/ New |
|---|---|---|---|
| R-410A, R-410B | AZ-20, Suva 9100, Puron | 22 | N |
| THR-03 | 22 | N | |
| ISCEON 59 | 22 | N | |
| R-407C | Suva 9000, Klea 66 | 22 | R, N |
| R-507, R507A | AZ-50 | 22 | R, N |
| Isceon 59, NU-22, R417A | Isceon 59, NU-22 | 22 | R, N |
| Ammonia Vapor Compression | 22 | N | |
| Ammonia Absorption | 22 | N | |
| Evaporative/Desiccant Cooling | all HCFCs | N | |
| R-404A | HP62 | 22 | R, N |
| R-125/134a/600a(28.1/70.0/1.9) | 22 | R, N | |
| RS-44 (2003 formulation) | 22 | R, N | |
| R-421A | Choice R421A | 22 | R, N |
| R-421B | Choice R421B | 22 | R, N |
| R-422D | ISCEON MO29 | 22 | R, N |
| R-424A | RS-44 | 22 | R, N |
| R-426A | RS-24 | 22 | R, N |
| KDD5, R-438A | ISCEON MO99 | 22 | R, N |
| R-434A | RS-45 | 22 | R, N |
| R-125/290/134a/600a (55.0/1.0/42.5.1.5) | ICOR AT-22 | 22 | R, N |
| R-422B | XAC1, NU-22B | 22 | R, N |
| R-422C | XLT1 | 22, 402A, 402B, 408A | R, N |
| R-427A | Forane 427A | 22 | R |
Key: R = Retrofit Uses, N = New
Uses