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To access replacement choices which are available for a specific refrigerant just click on the number. Click here to access the legend.

 

Refrigerant Number  Chemical Name Formula Phase Out Date
R-10 (CC) Carbontetrachloride CCl4  
R-11 (CFC) Trichlorofluoromethane CCl3F 01/01/96
R-12 (CFC) Dichlorodifluoromethane CCl2F2 01/01/96
R-13 (CFC) Chlorotrifluoromethane CClF3 01/01/96
R-13b1 (BFC) Bromotrifluoromethane CBrF3 01/01/96
R-14 (FC) Carbontetrafluoride CF4  
R-21 (HCFC) Dichlorofluoromethane CHCl2F 01/01/20
R-22 (HCFC) Chlorodifluoromethane CHClF2 01/01/20
R-23 (HFC) Trifluoromethane CHF3  
R-30 (HCC) Methylene Chloride CH2Cl2  
R-32 (HFC) Difluoromethane CH2F2  
R-40 (HCC) Methyl Chloride CH3Cl  
R-50 (HC) Methane CH4  
R-113 (CFC) Trichlorotrifluoroethane CCl3CF3 01/01/96
R-114 (CFC) Dichlorotetrafluoroethane CClF2CClF2 01/01/96
R-115 (CFC) Chloropentafluoroethane CClF2CF3 01/01/96
R-116 (FC) Hexafluoroethane C2F6  
R-123 (HCFC) Dichlorotrifluoroethane CHCl2CF3 01/01/30
R-124 (HCFC) Chlorotetrafluoroethane CF3CHClF 01/01/20
R-125 (HFC) Pentafluoroethane CHF2CF3  
R-134a (HFC) Tetrafluoroethane CF3CH2F  
R-141b (HCFC) Dichlorofluoroethane CH3CCl2F 01/01/20
R-142b (HCFC) Chlorodifluoroethane CH3CClF2 01/01/20
R-143a (HFC) Trifluoroethane CH2CF3  
R-152a (HFC) Difluoroethane CH3CHF2  
R-170 (HC) Ethane CH3CH3  
R-218 (FC) Octafluoropropane CF3CF2CF3  
R-245a (HFC) Pentafluoropropane CF3CH2CHF2  
R-290 (HC) Propane CH3CH2CH3  
R-C318 (FC) Octafluorocyclobutane C4F8  
R-400 (CFC) 12/114 60% 40% 01/01/96
R-401a (MP-39) (HCFC) 22/124/152a 53% 34% 13% 01/01/20
R-401b (MP-66) (HCFC) 22/124/152a 61% 28% 11% 01/01/20
R-401c (MP-52) (HCFC) 22/124/152a 33% 52% 15% 01/01/20
R-402a (HP-80) (HCFC) 22/125/290 38% 60% 02% 01/01/20
R-402b (HP-81) (HCFC) 22/125/290 60% 38% 02% 01/01/20
R-403a (R-69S) (HCFC) 22/218/290 75% 20% 05% 01/01/20
R-403b (R-69L) (HCFC) 22/218/290 56% 39% 05% 01/01/20
R-404a (HP-62 or FX- 70) (HFC) 125/134a/143a 44% 4% 52%  
R-405a (G2015) (HCFC) 22/142b/152a/C318 45% 5.5% 07% 42.5% 01/01/20
R-406a (GHG R-12) (HCFC) 22/142b/600 55% 41% 04% 01/01/20
R-407a (Klea-60) (HFC) 32/125/134a 20% 40% 40%  
R-407b (Klea-61) (HFC) 32/125/134a 10% 70% 20%  
R-407c (Klea-66, x9000) (HFC) 32/125/134a 23% 25% 52%  
R-408a (FX-10) (HCFC) 22/125/143a 47% 07% 46% 01/01/20
R-409a (FX-56) (HCFC) 22/124/142b 60% 25% 15% 01/01/20
R-410a (Puron®, AZ-20,x9100) (HFC) 32/125 50% 50%  
R-414b (HotShot,Karcool) (HCFC) 22/124/142b/600 50% 39% 9.5% 1.5% 01/01/20
R-500 (CFC) 12/152a 74% 26% 01/01/96
R-501 (CFC) 22/12 75% 25% 01/01/96
R-502 (CFC) 22/115 49% 51% 01/01/96
R-503 (CFC) 13/23 60% 40% 01/01/96
R-507 (AZ-50) (HFC) 125/143a 50% 50%  
R-508b (Suva 95) (HFC) 23/116 30%-50% + 50%-70%  
R-600 (HC) Butane CH3CH2CH2CH3  
R-600a / R-601 (HC) Isobutane CH(CH3)3  
R-717 Ammonia NH3  
R-718 Water H2O  
R-729 Air -------  
R-744 Carbon dioxide CO2  
R-764 Sulfur dioxide SO2  

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Legend:

RED
= severest ozone depleting refrigerants. The majority of which  are no longer in production.
YELLOW = interim refrigerants, phase out scheduled due to ozone depleting properties.
GREEN = refrigerant considered ozone friendly at this time.

BFC=BromoFluoroCarbon CC=ChloroCarbon FC=FluoroCarbon HC=HydroCarbon HCC=HydroChloroCarbon CFC=ChloroFluoroCarbon HCFC=HydroChloroFluoroCarbon

Note: For the purposes of this chart, blends are marked with only the severest of ozone depleting product. They may also contain a combination of less severe ozone depleting products.

Phase Out Date: Montreal Protocol set date for which production of a refrigerant has or will cease in North American countries. CFCs are no longer produced. New manufactured pre-charged equipment with HCFCs will cease production in 2010. HCFCs for service use will continue to be produced until 2020. HFCs are not slated for phaseout at this time.

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Replacement Refrigerants:  In all cases, consideration should be given to the age and condition of existing equipment. It may be cost effective to upgrade to new equipment, the majority of which  operate with lower energy requirements. Whenever possible, chose an HFC as your replacement refrigerant. Initial change-out costs may be more, but you will have invested in a long term solution.

 Click on the replacement refrigerant for specific retrofit guidelines.

Original Replacement Properties
R-11 R-123 (HCFC) Short term. Centrifugal chillers, retrofit required
R-12 R-134a (HFC) Long term. Medium temperature applications, new equipment, automotive
R-401a (HCFC) Short term. med/low temperature applications, -15 F evaporating temperature and above
R-401b (HCFC) Short term. low temp below -15F evaporating temperature
R-404a (HFC) Long term. low temp applications
R-409a (HCFC) Short term. med/low temp -15F evaporating temperature and above
R-13 R-23 (HFC) Long term. R-508b may be used to replace either R-13 or R-23.
R-508b (HFC) Long term. Very low temp apps -40F to -150F
R-13b1 (BFC) R-410a (HFC) Long term.
R-114

R-124 (HCFC)

Short term.
R-22 R-407c (HFC) Long term. Retrofits and new equipment
R-410a (HFC) Long term. Newly manufactured equipment only due to higher operating pressures.
R-23 R-508b (HFC) Long term. Very low temp apps -40F to -150F
R-500 R-134a (HFC) Long term.
R-401b (HCFC) Short term. low temp below -15F evaporating temperature
R-409a (HCFC) Short term.
R-502 R-402a (HCFC) Short term.
R-402b (HCFC) Short term.
R-404a (HFC) Long term.low temp applications
R-408a (HCFC) Short term.
R-507 (HFC) Long term.
R-503 R-23 (HFC) Long term.
R-508b (HFC) Long term.Very low temp apps -40F to -150F

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Dean Kadikoff
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Revised: November 08, 2003 .