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Acceptable Substitutes in Ice Skating Rinks

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 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 Ice Skating Rinks

Substitute (Name Used in the Federal Register) Trade Name Refrigerant Being Replaced Retrofit/ New
HCFC-134a   12,502 R,N
HCFC-22   12, 502 R, N
R-401A, R-401B MP-39, MP-66 12 R
R-407A, R-407B Klea 407A, 407B 502 R, N
Free Zone (HCFC Blend Delta) Free Zone / RB-276 12 R, N
Freeze 12 Freeze 12 12 R, N
GHG-X4 GHG-X4, Autofrost, Chill-it 12, 500 R, N
G2018C G2018C 12, 500, 502 R, N
Hot Shot Hot Shot, Kar Kool 12, 500 R, N
THR-04 THR-04 502 R, N
Ammonia Vapor Compression   12, 502 N
RS-24 (2002 formulation)   12 R, N
R-407C Suva 407K, 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
R-428A RS-52 502 R, N
KDD6 KDD6 12 R, N
Hot Shot 2   Hot Shot 2 12, 500, 502 R
R-442a RS-50 All R
Key: R = Retrofit Uses, N = New Uses

Acceptable Substitutes for HCFCs (class II ODS) in Ice Skating Rinks

Substitute (Name Used in the Federal Register) Trade Name Refrigerant Being Replaced Retrofit/ New
THR-03   22 N
ISCEON 59, NU-22, R-417A ISCEON 59, NU-22 22, blends containing 22 and/or 142b R, N
R-410A AZ-20, Suva 9100, Puron 22 and blends containing HCFCs N
R-410B   22, blends containing 22 and/or 142b N
R-407C Suva 9000, Klea 66 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
R-404A HP62 22 and blends containing HCFCs R, N
RS-44 (2003 formulation)   22, blends containing 22 and/or 142b R, N
ISCEON 79, R-422A ISCEON 79 22 and blends containing HCFCs R, N
R-421A Choice R421A 22, blends containing 22 and/or 142b R, N
R-421B Choice R421B 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-428A RS-52 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
RS-24 (2002 formulation)   22, blends containing 22 and/or 142b R, N
R-407A   22, blends containing 22 and/or 142b R, N
R-407B   22, blends containing 22 and/or 142b R, N
HFC-134a   22, blends containing 22 and/or 142b R, N
R-423   22, blends containing 22 and/or 142b R, N
Hot Shot 2   Hot Shot 2 22, blends containing 22 and/or 142b R
R-407F   Genetron Performax LT 22, blends containing 22 and/or 142b R, N
R-507, R-507A  AZ-50 22 and blends containing HCFCs R, N
R-442A RS-50 A1 R
Key: R = Retrofit Uses, N = New Uses

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