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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 | AZ-20, Suva 9100, Puron | 22 and blends containing HCFCs | N |
| R-410B | 22, blends containing 22 and/or 142b | N | |
| THR-03 | 22 | N | |
| ISCEON 59, NU-22, R-417A | ISCEON 59, NU-22 | 22, blends containing 22 and/or 142b | R, N |
| R-407C | Suva 9000, Klea 66 | 22 and blends containing HCFCs | R, N |
| R-507, R507A | AZ-50 | 22 and blends containing HCFCs | R, N |
| Ammonia Vapor Compression | 22, blends containing 22 and/or 142b | N | |
| Ammonia Absorption | 22, blends containing 22 and/or 142b | N | |
| Evaporative Cooling | 22, blends containing 22 and/or 142b | N | |
| Desiccant Cooling | 22, blends containing 22 and/or 142b | N | |
| R-404A | HP62 | 22 and blends containing HCFCs | R, N |
| R-125/134a/600a(28.1/70.0/1.9) | NU-22 old composition | 22, blends containing 22 and/or 142b | R, N |
| RS-44 (2003 formulation) | 22, blends containing 22 and/or 142b | R, N | |
| R-421A | Choice R421A | 22, blends containing 22 and/or 142b | R, N |
| R-422D | ISCEON MO29 | 22, blends containing 22 and/or 142b | R, N |
| R-424A | RS-44 | 22, blends containing 22 and/or 142b | R, N |
| R-426A | RS-24 | 22, blends containing 22 and/or 142b | R, N |
| KDD5, R-438A | ISCEON MO99 | 22, blends containing 22 and/or 142b | R, N |
| R-434A | RS-45 | 22, blends containing 22 and/or 142b | R, N |
| R-125/290/134a/600a (55.0/1.0/42.5.1.5) | ICOR AT-22 | 22, blends containing 22 and/or 142b | R, N |
| R-422B | XAC1, NU-22B | 22, blends containing 22 and/or 142b | R, N |
| R-422C | XLT1 | 22, blends containing 22 and/or 142b | R, N |
| R-427A | Forane 427A | 22, blends containing 22 and/or 142b | R |
| HFC-134a | 22, blends containing 22 and/or 142b | R, N | |
| RS-24 (2002 formulation) | 22, blends containing 22 and/or 142b | R, N | |
| R-423A | ISCEON 39TC | 22, blends containing 22 and/or 142b | R, N |
| R-407F | Genetron Performax LT | 22, blends containing 22 and/or 142b | R, N |
Key: R = Retrofit Uses, N = New
Uses