| Ozone Protection Hotline (800) 296-1996
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 available from the hotline. If your
browser is unable to display tables, please call the
hotline for a free paper copy.
Unacceptable substitutes
Note: 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
| 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 |
Key: R = Retrofit Uses, N = New
Uses
Acceptable Substitutes for HCFCs (class II ODS)
in Industrial Process Air Conditioning
| 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-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 |
KDD5 |
22 |
R, N |
| RS-45 (ASHRAE proposed designation: 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 |
Key: R = Retrofit Uses, N = New
Uses
|
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