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 CFC-12 & R-500 (class I ODS) in Centrifugal Chiller
HCFC-22 |
|
12,
500 |
N |
HCFC-123 |
|
12,
500 |
N |
HFC-134a |
|
12,
500 |
R, N |
Ikon
A |
|
12 |
R, N |
Ikon
B |
|
12 |
R, N |
HFC-227ea |
|
12,
500 |
N |
R-406A |
GHG |
12,
500 |
R, N
(R-500 only) |
Free Zone
(HCFC Blend Delta) |
Free Zone
/ RB-276 |
12,
500 |
R, N |
Freeze
12 |
Freeze
12 |
12,
500 |
R, N |
FRIGC
FR-12 (HCFC Blend Beta) |
FRIGC
FR-12 |
12,
500 |
R, N |
GHG-X4 |
GHG-X4,
Autofrost, Chill-it |
12,
500 |
R, N |
GHG-X5 |
GHG-X5 |
12,
500 |
R, N |
G2018C |
G2018C |
12,
500 |
R, N |
Hot
Shot |
Hot Shot,
Kar Kool |
12,
500 |
R, N |
HCFC-22/HCFC-142b |
|
12 |
R, N |
R-420A |
Choice
R-420A |
12,
500 |
R, N |
FOR12A |
FOR12A |
12 |
R, N |
FOR12B |
FOR12B |
12 |
R, N |
Ammonia
Vapor Compression With Secondary Loop |
|
12,
500 |
N |
Evaporative/Desiccant Cooling |
|
12,
500 |
N |
Ammonia
/ Water Absorption |
|
12,
500 |
N |
Water /
Lithium Bromide Absorption |
|
12,
500 |
N |
THR-02 |
THR-02 |
12 |
N |
Isceon
39TC |
Isceon
39TC |
12 |
R, N |
Key: R = Retrofit Uses, N = New
Uses
Acceptable Substitutes for HCFCs (class II ODS)
in Centrifugal Chillers
THR-03 |
|
N |
ISCEON
59, NU-22, R-417 |
Isceon
59, NU-22 |
R, N |
R-410A,
R-410B |
AZ-20,
Suva 9100, Puron |
N |
R-407C |
Suva
9000, Klea 66 |
R, N |
R-507,
R-507A |
AZ-50 |
R, N |
Ammonia
Vapor Compression With Secondary Loop |
|
N |
Ammonia
Absorption or Water/Lithium Bromide Absorption |
|
N |
Evaporative/Desiccant Cooling |
|
N |
R-404A |
HP62 |
R, N |
R-125/134a/600a (28.1/70.0/1.9) |
|
R, N |
RS-44 |
RS-44 |
R, N |
Key: R = Retrofit Uses, N = New
Uses
|