Substitutes in Commercial Ice Machines
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.Substitutes are reviewed on the basis of environmental and health risks, including factors such as ozone depletion potential, global warming potential, toxicity, flammability, and exposure potential. Lists of acceptableacceptableThis designation means that a substitute may be used, without restriction, to replace the relevant ODS within the end-use specified. For example, HCFC-22 is an acceptable substitute for R-502 in industrial process refrigeration. Note that all SNAP determinations apply to the use of a specific product as a substitute for a specific ODS in a specific end-use. and unacceptable
UnacceptableThis designation means that it is illegal to use a product as a substitute for an ODS in a specific end-use. For example, HCFC-141b is an unacceptable substitute for CFC-11 in building chillers. Note that all SNAP determinations apply to the use of a specific product as a substitute for a specific ODS in a specific end-use. substitutes are updated several times each year. The list of substitutes is shown below.
Note: SNAP-related information published in the Federal Register takes precedence over all information on this page.
Substitute | Trade Name(s) | Retrofit/New | ODP![]() |
GWP![]() |
ASHRAE![]() Designation (Safety Classification) |
SNAP Listing Date | Listing Status |
---|---|---|---|---|---|---|---|
Ammonia Absorption | N | 0 | 0 | B2 | September 5, 1996 | Acceptable | |
Ammonia Vapor Compression | N | 0 | 0 | B2 | March 18, 1994; September 5, 1996 |
Acceptable | |
FOR12A | FOR12A | R/N | 0 | 1,100 | A1 | December 18, 2000 | Acceptable |
FOR12B | FOR12B | R/N | 0 | 1,000 | A1 | December 18, 2000 | Acceptable |
RB-276 | Free Zone, HCFC Blend Delta | R/N | 0.013 | 1,592 | A1 | September 5, 1996 | Acceptable |
Freeze 12 | Freeze 12 | R/N | 0.013 | 1,606 | A1 | September 5, 1996 | Acceptable |
R-416A | FRIGC FR-12, HCFC Blend Beta | R/N | 0.009 | 1,081 | A1 | February 8, 1996; February 24, 1998 |
Acceptable |
G2018C | G2018C | R/N | 0.053 | 1,731 | A1 | September 5, 1996 | Acceptable |
GHG-HP | HCFC Blend Lambda | R/N | 0.056 | 1,893 | A1 | February 8, 1996 | Acceptable |
R-414A | GHG-X4, Autofrost, Chill-it, HCFC Blend Xi | R/N | 0.045 | 1,478 | A1 | September 5, 1996 | Acceptable |
GHG-X5 | GHG-X5 | R/N | 0.032 | 2,377 | A1 | June 3, 1997 | Acceptable |
HCFC-22 | N | 0.055 | 1,810 | A1 | March 18, 1994 | Acceptable | |
HCFC-22/HCFC-142b | R/N | 0.055-0.065 | 1,810-2,310 | A1 | June 3, 1997 | Acceptable | |
HFC-134a | N | 0 | 1,430 | A1 | March 18, 1994; June 16, 2010 |
Acceptable | |
R-414B | Hot Shot, Kar Kool, HCFC Blend Omicron | R/N | 0.098 | 3,337 | A1 | September 5, 1996 | Acceptable |
R-417C | Hot Shot 2 | R | 0 | 1,820 | A1 | October 4, 2011 | Acceptable |
Ikon A | Ikon-12, Blend Zeta | N | 0 | N/A | A1 | June 19, 2000 | Acceptable |
Ikon B | R/N | 0 | N/A | A1 | December 6, 1999 | Acceptable | |
R-125/R-290/R-134a/R-600a (55.0/1.0/42.5/1.5) | ICOR AT-22 | R/N | 0 | 2,530 | A1 | March 29, 2006 | Acceptable |
R-290 (Propane) | N | 0 | 3 | A3 | December 1, 2016 | Acceptable with Use Conditions: For use in self-contained commercial ice machines; see rule for detailed conditions. | |
R-401A | SUVA MP-39 | N | 0.037 | 1,182 | A1 | January 13, 1995 | Acceptable |
R-401B | SUVA MP-66 | N | 0.040 | 1,288 | A1 | January 13, 1995 | Acceptable |
R-402A | HP-80 | R/N | 0.019 | 2,746 | A1 | March 18, 1994 | Acceptable |
R-402B | HP-81 | R/N | 0.03 | 2,379 | A1 | March 18, 1994 | Acceptable |
R-404A | SUVA HP-62 | R/N | 0 | 3,920 | A1 | March 18, 1994; December 20, 2002 |
Acceptable |
R-406A | GHG-12, GHG-X3, McCool, Autofrost X3 | R | 0.057 | 1,900 | A2 | August 26, 1994 | Acceptable |
R-407A | Klea 60, Klea 407A | R/N | 0 | 2,110 | A1 | August 26, 1994; June 16, 2010 |
Acceptable |
R-407B | Klea 61 | R/N | 0 | 2,800 | A1 | August 26, 1994; June 16, 2010 |
Acceptable |
R-407C | Suva 407C, Klea 407C | R/N | 0 | 1,770 | A1 | February 8, 1996; December 20, 2002; August 21, 2003 |
Acceptable |
R-407F | Genetron Performax LT | R/N | 0 | 1,820 | A1 | October 4, 2011 | Acceptable |
R-408A | HCFC Blend Epsilon | R | 0.026 | 55 | A1 | August 26, 1994 | Acceptable |
R-409A | HCFC Blend Gamma | R | 0.047 | 1,558 | A1 | August 26, 1994 | Acceptable |
R-410A | AZ-20, Suva 9100, Puron | N | 0 | 2,090 | A1 | February 8, 1996; December 20, 2002 |
Acceptable |
R-410B | N | 0 | 2,230 | A1 | February 8, 1996 | Acceptable | |
R-411A | R/N | 0.048 | 1,600 | A2 | February 8, 1996 | Acceptable | |
R-411B | R/N | 0.052 | 1,700 | A2 | February 8, 1996 | Acceptable | |
R-417A | ISCEON 59, NU-22 | R/N | 0 | 2,350 | A1 | December 6, 1999; December 20, 2002; June 16, 2010 |
Acceptable |
R-420A | Choice R-420A | R/N | 0.008 | 1,536 | A1 | October 1, 2004 | Acceptable |
R-421A | Choice R-421A | R/N | 0 | 2,630 | A1 | September 28, 2006 | Acceptable |
R-421B | Choice R-421B | R/N | 0 | 3,190 | A1 | September 28, 2006 | Acceptable |
R-422A | ISCEON 79 | R/N | 0 | 3,140 | A1 | October 1, 2004 | Acceptable |
R-422B | ICOR XAC1, NU-22B | R/N | 0 | 2,530 | A1 | March 29, 2006 | Acceptable |
R-422C | ICOR XLT1 | R/N | 0 | 3,390 | A1 | March 29, 2006 | Acceptable |
R-422D | ISCEON MO29 | R/N | 0 | 2,730 | A1 | September 28, 2006 | Acceptable |
R-424A | RS-44 | R/N | 0 | 2,440 | A1 | September 28, 2006 | Acceptable |
R-426A | RS-24 | R/N | 0 | 1,510 | A1 | September 28, 2006; June 16, 2010 |
Acceptable |
R-428A | RS-52 | R/N | 0 | 3,610 | A1 | October 4, 2007 | Acceptable |
R-434A | RS-45 | R/N | 0 | 3,250 | A1 | October 4, 2007 | Acceptable |
R-437A | KDD6, ISCEON MO49 Plus | R/N | 0 | 1,810 | A1 | January 2, 2009 | Acceptable |
R-438A | KDD5, ISCEON MO99 | R/N | 0 | 2,270 | A1 | October 4, 2007; June 16, 2010 |
Acceptable |
R-442A | RS-50 | R | 0 | 1,890 | A1 | May 17, 2013 | Acceptable |
R-448A | Solstice® N-40 | R/N | 0 | 1,387 | A1 | July 16, 2015 | Acceptable |
R-449A | Opteon® XP 40 | R/N | 0 | 1,400 | A1 | July 16, 2015 | Acceptable |
R-449B | Forane® 449B | R/N | 0 | 1,412 | A1 | October 11, 2016 | Acceptable |
R-450A | Solstice® N-13 | R/N | 0 | 601 | A1 | October 21, 2014 | Acceptable |
R-507, R-507A | AZ-50 | R/N | 0 | 3,990 | A1 | March 18, 1994; September 5, 1996; December 20, 2002 |
Acceptable |
R-513A | Opteon® XP 10 | R/N | 0 | 630 | A1 | July 16, 2015 | Acceptable |
RS-24 (2002 formulation) | R/N | 0 | 1,510 | A1 | December 20, 2002; June 16, 2010 |
Acceptable | |
RS-44 (2003 formulation) | R/N | 0 | 2,420 | A1 | June 16, 2010 | Acceptable | |
Stirling Cycle | N | 0 | N/A | N/A | June 16, 2010 | Acceptable | |
THR-02 | R/N | 0 | N/A | A1 | December 6, 1999 | Acceptable | |
THR-03 | R/N | 0 | N/A | A1 | December 6, 1999 | Acceptable | |
THR-04 | R/N | >0 | N/A | A1 | June 8, 1999 | Acceptable |
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