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gwp
string
id
string
listing_status
string
refrigerant
string
retrofit_or_new
string
safety_class
string
source
string
source_quote
string
url
string
verified_fields
list
lubricant
string
disagreements
list
also_reported
list
replaces
string
trade_name
string
0
ammonia-absorption
Acceptable
Ammonia Absorption
N
B2
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
Ammonia Absorption | | N | 0 | 0 | B2 | <https://www.govinfo.gov/app/details/FR-1996-09-05/96-22649> September 5, 1996 | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/ammonia-absorption/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
null
null
null
null
10900
cfc-r-12
Phased out in 1996
CFC R-12
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
CFC R-12 10900 L,M MIN AB & MIN Phased out in 1996
https://referencesource.org/hvac-component-refrigerant-compatibility/cfc-r-12/
[ "gwp", "listing_status", "lubricant", "refrigerant" ]
MIN
null
null
null
null
4657
cfc-r-502
Phased out in 1996
CFC R-502
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
CFC R-502 4657 L,M MIN AB & MIN POE-32 Phased out in 1996
https://referencesource.org/hvac-component-refrigerant-compatibility/cfc-r-502/
[ "gwp", "listing_status", "lubricant", "refrigerant" ]
MIN
null
null
null
null
N/A
desiccant-cooling
Acceptable
Desiccant Cooling
N
null
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
Desiccant Cooling | | N | 0 | N/A | N/A | <https://www.govinfo.gov/app/details/FR-1996-09-05/96-22649> September 5, 1996 ; <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/desiccant-cooling/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new" ]
null
null
null
null
null
N/A
evaporative-cooling
Acceptable
Evaporative Cooling
N
null
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
Evaporative Cooling | | N | 0 | N/A | N/A | <https://www.govinfo.gov/app/details/FR-1996-09-05/96-22649> September 5, 1996 | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/evaporative-cooling/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new" ]
null
null
null
null
null
1810
hcfc-r-22
No new equipment 2010**
HCFC R-22
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-22 1810 L,M,H MIN AB & MIN POE-32 No new equipment 2010**
https://referencesource.org/hvac-component-refrigerant-compatibility/hcfc-r-22/
[ "gwp", "listing_status", "lubricant", "refrigerant" ]
MIN
null
null
null
null
null
hcr-4141
acceptable, subject to use conditions
HCR 4141
null
null
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
The EPA is proposing to list HCR 4141, HFO-1234ze(E), and R-516A as acceptable, subject to use conditions, for this end-use. HCR 4141 is a higher flammability refrigerant blend with each component in the A3 Safety Group. HFO-1234ze(E) and R-516A are lower flammability refrigerants, both in the A2L Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/hcr-4141/
[ "listing_status", "refrigerant" ]
null
null
null
null
null
1,430
hfc-134a
Acceptable
HFC-134a
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
HFC-134a | | R/N | 0 | 1,430 | A1 | <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB); <https://www.govinfo.gov/content/pkg/FR-2017-07-21/pdf/2017-15379.pdf> July 21, 2017 (pdf) (314 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/hfc-134a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
null
null
null
null
675
hfc-32
Acceptable with Use Conditions: See rules for detailed conditions.
HFC-32
N
A2L
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
HFC-32 | | N | 0 | 675 | A2L | <https://www.govinfo.gov/content/pkg/FR-2015-04-10/pdf/2015-07895.pdf> April 10, 2015 (pdf) (769 KB); <https://www.govinfo.gov/content/pkg/FR-2021-05-06/pdf/2021-08968.pdf> May 6, 2021 (pdf) (583 KB); <https://www.govinfo.gov/content/pkg/FR-2023-04-28/pdf/2023-08663.pdf> April 28, 2023 (p...
https://referencesource.org/hvac-component-refrigerant-compatibility/hfc-32/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
[]
null
null
null
1430
hfc-r-134a
null
HFC R-134a
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-134a 1430 R-134a manufactured in India
https://referencesource.org/hvac-component-refrigerant-compatibility/hfc-r-134a/
[ "gwp", "refrigerant" ]
null
null
null
null
null
null
hfo-1234yf
null
HFO-1234yf
null
A2L
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
ASHRAE 34-2024 categorizes HFO-1234yf and R-444A as being in the A2L Safety Group and R-453A, R-456A, and R-480A in the A1 Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/hfo-1234yf/
[ "refrigerant", "safety_class" ]
null
[]
[ { "as_of": "2026-08-11T00:00:00", "field": "retrofit_or_new", "source": "https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives", "source_quote": "List HFO-1234yf as acceptable, subject to use co...
null
null
null
hfo-1234ze-e
acceptable, subject to use conditions
HFO-1234ze(E)
null
A2L
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
The EPA is proposing to list HCR 4141, HFO-1234ze(E), and R-516A as acceptable, subject to use conditions, for this end-use. HCR 4141 is a higher flammability refrigerant blend with each component in the A3 Safety Group. HFO-1234ze(E) and R-516A are lower flammability refrigerants, both in the A2L Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/hfo-1234ze-e/
[ "listing_status", "refrigerant", "safety_class" ]
null
null
null
null
null
1182
r-12-hcfc-r-401a
For service applications only
HCFC R-401A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-401A 1182 R-12 M,H AB & MIN POE-32 & MIN POE-32 For service applications only, trade name: Freon™ MP39
https://referencesource.org/hvac-component-refrigerant-compatibility/r-12-hcfc-r-401a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
AB & MIN
null
null
R-12
Freon™ MP39
1288
r-12-hcfc-r-401b
For service applications only
HCFC R-401B
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-401B 1288 R-12 L,M AB & MIN POE-32 & MIN POE-32 For service applications only, trade name: Freon MP66
https://referencesource.org/hvac-component-refrigerant-compatibility/r-12-hcfc-r-401b/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
AB & MIN
null
null
R-12
Freon MP66
1909
r-12-hcfc-r-409a
For service applications only
HCFC R-409A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-409A 1909 R-12 L,M AB & MIN POE-32 & MIN POE-32 For service applications only, trade name: FX56
https://referencesource.org/hvac-component-refrigerant-compatibility/r-12-hcfc-r-409a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
AB & MIN
null
null
R-12
FX56
601
r-12-r-134a-r-450a
Solstice N13 for refrigeration applications only
R-450A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-12/R-134a M,H M,H POE-32 Solstice N13 for refrigeration applications only R-450A 601 R12 L,M L,M POE-22D Compressors produced in Brazil
https://referencesource.org/hvac-component-refrigerant-compatibility/r-12-r-134a-r-450a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-12/R-134a
Solstice N13
7 (2)
r-123-r-514a
null
R-514A
null
B1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
R-123 Replacement Opteon™ XP30 R-514A B1 7 (2) POE
https://referencesource.org/hvac-component-refrigerant-compatibility/r-123-r-514a/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
POE
null
null
R-123
Opteon™ XP30
1,990
r-125-r-134a-r-600a-28-1-70-0-1-9
Acceptable
R-125/R-134a/R-600a (28.1/70.0/1.9)
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-125/R-134a/R-600a (28.1/70.0/1.9) | NU-22 old composition | R/N | 0 | 1,990 | A1 | <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-125-r-134a-r-600a-28-1-70-0-1-9/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
NU-22 old composition
2,530
r-125-r-290-r-134a-r-600a-55-0-1-0-42-5-1-5
Acceptable
R-125/R-290/R-134a/R-600a (55.0/1.0/42.5/1.5)
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
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 | <https://www.govinfo.gov/content/pkg/FR-2006-03-29/pdf/06-3030.pdf> March 29, 2006 (pdf) (181 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-125-r-290-r-134a-r-600a-55-0-1-0-42-5-1-5/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
ICOR AT-22
1.8
r-1270-propylene
Unacceptable , as of January 3, 2017.
R-1270 (Propylene)
N
A3
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-1270 (Propylene) | | N | 0 | 1.8 | A3 | <https://www.govinfo.gov/content/pkg/FR-2016-12-01/pdf/2016-25167.pdf> December 1, 2016 (pdf) (969 KB) | Unacceptable , as of January 3, 2017. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-1270-propylene/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
null
null
null
null
4 (1)
r-134a-r-1234yf
null
R-1234yf
null
A2L
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Opteon™ XP10 R-513A R-134a A1 631 (573) -21 Opteon™ XL10 R-1234yf R-134a A2L 4 (1) -21
https://referencesource.org/hvac-component-refrigerant-compatibility/r-134a-r-1234yf/
[ "gwp", "refrigerant", "replaces", "safety_class", "trade_name" ]
null
null
null
R-134a
Opteon™ XL10
631 (573)
r-134a-r-513a
null
R-513A
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
R-134a Replacement for Lowest GWP retrofit refrigerant for R-134a designed systems. Opteon™ XP10 R-513A A1 631 (573) POE Elastomeric seals replacement or lubricant change not required.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-134a-r-513a/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
POE
null
null
R-134a
Opteon™ XP10
2107
r-22-hfc-r-407a
null
HFC R-407A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-407A 2107 R-22 L,M L,M POE-32
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r-407a/
[ "gwp", "lubricant", "refrigerant", "replaces" ]
POE-32
null
null
R-22
null
1774
r-22-hfc-r-407c
null
HFC R-407C
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-407C 1774 R-22 L,M,H L,M,H POE-32 Freon 9000/KLEA 66
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r-407c/
[ "gwp", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-22
Freon 9000/KLEA 66
1825
r-22-hfc-r-407f
Discus™ and select refrigeration scroll models (ZF/ZB)
HFC R-407F
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-407F 1825 R-22 L,M L,M POE-32 Discus™ and select refrigeration scroll models (ZF/ZB)
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r-407f/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces" ]
POE-32
null
null
R-22
null
3143
r-22-hfc-r-422a
Discus supermarket racks only
HFC R-422A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-422A 3143 R-22 L,M POE-32 MIN AB Discus supermarket racks only
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r-422a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces" ]
POE-32
null
null
R-22
null
2729
r-22-hfc-r-422d
Discus supermarket racks only
HFC R-422D
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-422D 2729 R-22 L,M POE-32 MIN AB Discus supermarket racks only
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r-422d/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces" ]
POE-32
null
null
R-22
null
2265
r-22-hfc-r-438a
Discus supermarket racks only
HFC R-438A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-438A 2265 R-22 L,M POE-32 MIN AB Discus supermarket racks only; Freon MO99
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r-438a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-22
Freon MO99
2138
r-22-hfc-r427a
Discus supermarket racks only
HFC-R427A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC-R427A 2138 R-22 L,M POE-32 Discus supermarket racks only
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-hfc-r427a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces" ]
POE-32
null
null
R-22
null
null
r-22-r-404a
null
R-404A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-404a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
1495
r-22-r-404a-r-407h
Discus models and Copeland ZB and ZF scrolls for refrigerated rack retrofit
R-407H
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-407H 1495 R-22/R-404A L,M POE-32 Discus models and Copeland ZB and ZF scrolls for refrigerated rack retrofit
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-404a-r-407h/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces" ]
POE-32
null
null
R-22/R-404A
null
1387
r-22-r-404a-r-448a
null
R-448A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-22/R-404A L,M L,M POE-32 Solstice™ N40 R-448A 1387
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-404a-r-448a/
[ "gwp", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-22/R-404A
Solstice™ N40
1396
r-22-r-404a-r-449a
null
R-449A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-22/R-404A L,M L,M POE-32 Opteon™ XP40 R-449A 1396
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-404a-r-449a/
[ "gwp", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-22/R-404A
Opteon™ XP40
2140
r-22-r-404a-r-452a
OPTEON™ XP44 for U.S. and European pre-approved applications only
R-452A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-452A 2140 R-22/R-404A L,M L,M POE-32 OPTEON™ XP44 for U.S. and European pre-approved applications only
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-404a-r-452a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-22/R-404A
OPTEON™ XP44
null
r-22-r-407a
null
R-407A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-407a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
1397 (1282)
r-22-r-407a-r-407f-r-449a
null
R-449A
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
R-22 , R-407A, R-407F Opteon™ XP40 R-449A A1 1397 (1282) POE Opteon™ XP40 retrofits will require replacement of critical elastomeric
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-407a-r-407f-r-449a/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
POE
null
null
R-22 , R-407A, R-407F
Opteon™ XP40
1774 (1624)
r-22-r-407c
null
R-407C
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
R-22 Replacements for Great choice in systems where changing to POE oil is not practical, Freon™ NU-22B™ R-422B A1 2525 (2289) MO, AB, POE A/C, Heat Pumps elastomeric seals require replacement. Closest performance match to R-22 in A/C applications. Freon™ 407C R-407C A1 1774 (1624) POE Retrofits require a lubricant cha...
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-407c/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
POE
[]
null
R-22
Freon™ 407C
null
r-22-r-407f
null
R-407F
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-407f/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-417a
null
R-417A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-417a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-417b
null
R-417B
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-417b/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-421a
null
R-421A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-421a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-421b
null
R-421B
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-421b/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-422a
null
R-422A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-422a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
2525 (2289)
r-22-r-422b
null
R-422B
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
R-22 Replacements for Great choice in systems where changing to POE oil is not practical, Freon™ NU-22B™ R-422B A1 2525 (2289) MO, AB, POE A/C, Heat Pumps elastomeric seals require replacement.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-422b/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
MO, AB, POE
[]
null
R-22
Freon™ NU-22B™
null
r-22-r-422c
null
R-422C
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-422c/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-422d
null
R-422D
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-422d/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-424a
null
R-424A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-424a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-427a
null
R-427A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-427a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-428a
null
R-428A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-428a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r-434a
null
R-434A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-434a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
2264 (2059)
r-22-r-438a
null
R-438A
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Freon™ MO99™ R-438A A1 2264 (2059) MO, AB, POE elastomeric seals require replacement. R-22 Replacements for Great choice in systems where changing to POE oil is not practical,
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-438a/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
MO, AB, POE
[ { "field": "trade_name", "versions": [ { "as_of": "2026-08-11T00:00:00", "source": "https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf", "source_quote": "Freon™ MO99™ R-438A A1 2264 (2059) MO, AB, POE elastomeric seals require replacement...
null
R-22
Freon™ MO99™
null
r-22-r-507a
null
R-507A
null
null
https://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf
R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r-507a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-22-r427a
null
R427A
null
null
https://forane.arkema.com/en/forane-refrigerants/forane-retrofits/the-drop-in-myth/
Arkema recommends using Forane&reg; 427A (R427A) - The EASY RETROFIT&trade; for your R-22 retrofit solution.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-22-r427a/
[ "refrigerant", "replaces" ]
null
null
null
R-22
null
null
r-290
null
R-290
null
A3
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
Using these safety groups, HFO-1234ze(E), HFC-32 and the refrigerant blends R-452B, R-454A, R-454B, R-454C, R-457A, and R-516A are in the A2L Safety Group, while R-290, R-441A, and the components of HCR 4141 are in the A3 Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-290/
[ "refrigerant", "safety_class" ]
null
null
null
null
null
3
r-290-propane
Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions.
R-290 (Propane)
N
A3
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-290 (Propane) | | N | 0 | 3 | A3 | <https://www.govinfo.gov/content/pkg/FR-2015-04-10/pdf/2015-07895.pdf> April 10, 2015 (pdf) (769 KB) | Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-290-propane/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
null
null
null
null
3
r-290-propane-2
For use with specific Copeland compressors manufactured in India for R-290
R-290 propane
null
A3
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-290 propane A3 3 POE-32 For use with specific Copeland compressors manufactured in India for R-290
https://referencesource.org/hvac-component-refrigerant-compatibility/r-290-propane-2/
[ "gwp", "listing_status", "lubricant", "refrigerant", "safety_class" ]
POE-32
null
null
null
null
3,920
r-404a
Acceptable
R-404A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-404A | SUVA HP-62 | R/N | 0 | 3,920 | A1 | <https://www.govinfo.gov/content/pkg/FR-2002-12-20/pdf/02-32130.pdf> December 20, 2002 (pdf) (168 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-404a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
SUVA HP-62
239 (238)
r-404a-r-454a
null
R-454A
null
A2L
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Opteon™ XL40 R-454A R-404A A2L 239 (238) -54 Freon™ 410A R-410A N/A A1 2088 (1924) -61
https://referencesource.org/hvac-component-refrigerant-compatibility/r-404a-r-454a/
[ "gwp", "refrigerant", "replaces", "safety_class", "trade_name" ]
null
null
null
R-404A
Opteon™ XL40
1397 (1282)
r-404a-r-507-r-449a
null
R-449A
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Opteon™ XP40 R-449A A1 1397 (1282) POE TXVs and in most cases it is suggested to replace the R-404A power element to a R-449A power element. Consult compressor manufacturer R-404A, R-507 guidelines for necessity of demand cooling in low temperature
https://referencesource.org/hvac-component-refrigerant-compatibility/r-404a-r-507-r-449a/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
POE
null
null
R-404A, R-507
Opteon™ XP40
2140 (1945)
r-404a-r-507-r-452a
null
R-452A
null
A1
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
R-404A, R-507 guidelines for necessity of demand cooling in low temperature applications. Replacements Discharge temperature and mass flow match to R-404A/R-507. Best Opteon™ XP44 R-452A A1 2140 (1945) POE used in situations where liquid injection cannot be installed on the low
https://referencesource.org/hvac-component-refrigerant-compatibility/r-404a-r-507-r-452a/
[ "gwp", "lubricant", "refrigerant", "replaces", "safety_class", "trade_name" ]
POE
null
null
R-404A, R-507
Opteon™ XP44
2,110
r-407a
Acceptable
R-407A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-407A | Klea 60, Klea 407A | R/N | 0 | 2,110 | A1 | <https://www.govinfo.gov/content/pkg/FR-2009-01-02/pdf/E8-31225.pdf> January 2, 2009 (pdf) (173 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-407a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Klea 60, Klea 407A
148 (146)
r-407a-r-454c
null
R-454C
null
A2L
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Opteon™ XL20 R-454C R-407A A2L 148 (146) -50 Opteon™ XL41 R-454B R-410A A2L 466 (467) -51
https://referencesource.org/hvac-component-refrigerant-compatibility/r-407a-r-454c/
[ "gwp", "refrigerant", "replaces", "safety_class", "trade_name" ]
null
null
null
R-407A
Opteon™ XL20
1,770
r-407c
Acceptable
R-407C
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-407C | Suva 407C, Klea 407C | R/N | 0 | 1,770 | A1 | <https://www.govinfo.gov/content/pkg/FR-1996-02-08/pdf/96-2723.pdf> February 8, 1996 (pdf) (152 KB); <https://www.govinfo.gov/content/pkg/FR-2002-12-20/pdf/02-32130.pdf> December 20, 2002 (pdf) (168 KB); <https://www.govinfo.gov/content/pkg/FR-2003-08-21/pdf/03-214...
https://referencesource.org/hvac-component-refrigerant-compatibility/r-407c/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Suva 407C, Klea 407C
148 (146)
r-407c-r-454c
null
R-454C
null
A2L
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Opteon™ XL10 R-1234yf R-134a A2L 4 (1) -21 Opteon™ XL20 R-454C R-407C A2L 148 (146) -50
https://referencesource.org/hvac-component-refrigerant-compatibility/r-407c-r-454c/
[ "gwp", "refrigerant", "replaces", "safety_class", "trade_name" ]
null
null
null
R-407C
Opteon™ XL20
1,820
r-407f
Acceptable
R-407F
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-407F | Genetron Performax LT | R/N | 0 | 1,820 | A1 | <https://www.govinfo.gov/content/pkg/FR-2011-10-04/pdf/2011-25391.pdf> October 4, 2011 (pdf) (201 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-407f/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Genetron Performax LT
2,090
r-410a
Acceptable
R-410A
N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-410A | AZ-20, Suva 9100, Puron | N | 0 | 2,090 | A1 | <https://www.govinfo.gov/content/pkg/FR-1996-02-08/pdf/96-2723.pdf> February 8, 1996 (pdf) (152 KB); <https://www.govinfo.gov/content/pkg/FR-2002-12-20/pdf/02-32130.pdf> December 20, 2002 (pdf) (168 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-410a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
AZ-20, Suva 9100, Puron
466 (467)
r-410a-r-454b
null
R-454B
null
A2L
https://www.chemours.com/en/-/media/files/freon/opteon-freon-general-replacement-guide.pdf
Opteon™ XL20 R-454C R-407A A2L 148 (146) -50 Opteon™ XL41 R-454B R-410A A2L 466 (467) -51
https://referencesource.org/hvac-component-refrigerant-compatibility/r-410a-r-454b/
[ "gwp", "refrigerant", "replaces", "safety_class", "trade_name" ]
null
[]
[ { "as_of": "2026-08-11T00:00:00", "field": "lubricant", "source": "https://prod-edam.honeywell.com/content/dam/honeywell-edam/pmt/oneam/en-us/refrigerants/documents/pmt-am-solstice-454b-applications-guide.pdf", "source_quote": "R-454B is now a primary replacement for R-410A. Due to • \u0007Liquid dr...
R-410A
Opteon™ XL41
2,230
r-410b
Acceptable
R-410B
N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-410B | | N | 0 | 2,230 | A1 | <https://www.govinfo.gov/content/pkg/FR-1996-02-08/pdf/96-2723.pdf> February 8, 1996 (pdf) (152 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-410b/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
null
null
null
null
2,350
r-417a
Acceptable
R-417A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-417A | ISCEON 59, NU-22 | R/N | 0 | 2,350 | A1 | <https://www.govinfo.gov/content/pkg/FR-1999-12-06/pdf/99-31544.pdf> December 6, 1999 (pdf) (226 KB); <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-417a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
ISCEON 59, NU-22
1,820
r-417c
Acceptable
R-417C
R
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-417C | Hot Shot 2 | R | 0 | 1,820 | A1 | <https://www.govinfo.gov/content/pkg/FR-2011-10-04/pdf/2011-25391.pdf> October 4, 2011 (pdf) (201 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-417c/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Hot Shot 2
2,630
r-421a
Acceptable
R-421A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-421A | Choice R-421A | R/N | 0 | 2,630 | A1 | <https://www.govinfo.gov/content/pkg/FR-2006-09-28/pdf/E6-15833.pdf> September 28, 2006 (pdf) (183 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-421a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Choice R-421A
2,530
r-422b
Acceptable
R-422B
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-422B | ICOR XAC1, NU-22B | R/N | 0 | 2,530 | A1 | <https://www.govinfo.gov/content/pkg/FR-2006-03-29/pdf/06-3030.pdf> March 29, 2006 (pdf) (181 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-422b/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
ICOR XAC1, NU-22B
3,390
r-422c
Acceptable
R-422C
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-422C | ICOR XLT1 | R/N | 0 | 3,390 | A1 | <https://www.govinfo.gov/content/pkg/FR-2006-03-29/pdf/06-3030.pdf> March 29, 2006 (pdf) (181 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-422c/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
ICOR XLT1
2,730
r-422d
Acceptable
R-422D
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-422D | ISCEON MO29 | R/N | 0 | 2,730 | A1 | <https://www.govinfo.gov/content/pkg/FR-2006-09-28/pdf/E6-15833.pdf> September 28, 2006 (pdf) (183 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-422d/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
ISCEON MO29
2,440
r-424a
Acceptable
R-424A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-424A | RS-44 | R/N | 0 | 2,440 | A1 | <https://www.govinfo.gov/content/pkg/FR-2006-09-28/pdf/E6-15833.pdf> September 28, 2006 (pdf) (183 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-424a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
RS-44
2,140
r-427a
Acceptable
R-427A
R
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-427A | Forane 427A | R | 0 | 2,140 | A1 | <https://www.govinfo.gov/content/pkg/FR-2009-01-02/pdf/E8-31225.pdf> January 2, 2009 (pdf) (173 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-427a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Forane 427A
3,250
r-434a
Acceptable
R-434A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-434A | RS-45 | R/N | 0 | 3,250 | A1 | <https://www.govinfo.gov/content/pkg/FR-2007-10-04/pdf/E7-19545.pdf> October 4, 2007 (pdf) (163 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-434a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
RS-45
1,810
r-437a
Acceptable
R-437A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-437A | KDD6, ISCEON MO49 Plus | R/N | 0 | 1,810 | A1 | <https://www.govinfo.gov/content/pkg/FR-2009-01-02/pdf/E8-31225.pdf> January 2, 2009 (pdf) (173 KB); <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-437a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
KDD6, ISCEON MO49 Plus
2,270
r-438a
Acceptable
R-438A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-438A | KDD5, ISCEON MO99 | R/N | 0 | 2,270 | A1 | <https://www.govinfo.gov/content/pkg/FR-2007-10-04/pdf/E7-19545.pdf> October 4, 2007 (pdf) (163 KB); <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-438a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
KDD5, ISCEON MO99
<5
r-441a
Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions.
R-441A
N
A3
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-441A | | N | 0 | <5 | A3 | <https://www.govinfo.gov/content/pkg/FR-2015-04-10/pdf/2015-07895.pdf> April 10, 2015 (pdf) (769 KB) | Acceptable with Use Conditions : For use in self-contained room air conditioning; see rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-441a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
[]
null
null
null
2.5
r-443a
Unacceptable , as of January 3, 2017.
R-443A
N
A3
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-443A | | N | 0 | 2.5 | A3 | <https://www.govinfo.gov/content/pkg/FR-2016-12-01/pdf/2016-25167.pdf> December 1, 2016 (pdf) (969 KB) | Unacceptable , as of January 3, 2017. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-443a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class" ]
null
null
null
null
null
null
r-444a
null
R-444A
null
A2L
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
ASHRAE 34-2024 categorizes HFO-1234yf and R-444A as being in the A2L Safety Group and R-453A, R-456A, and R-480A in the A1 Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-444a/
[ "refrigerant", "safety_class" ]
null
[]
[ { "as_of": "2026-08-11T00:00:00", "field": "retrofit_or_new", "source": "https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives", "source_quote": "List the blend R-444A as acceptable, subject to ...
null
null
700
r-452b
Acceptable with Use Conditions: See rule for detailed conditions.
R-452B
N
A2L
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-452B | Opteon™ XL55 | N | 0 | 700 | A2L | <https://www.govinfo.gov/content/pkg/FR-2021-05-06/pdf/2021-08968.pdf> May 6, 2021 (pdf) (583 KB) | Acceptable with Use Conditions: See rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-452b/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
[]
null
null
Opteon™ XL55
null
r-453a
null
R-453A
null
A1
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
ASHRAE 34-2024 categorizes HFO-1234yf and R-444A as being in the A2L Safety Group and R-453A, R-456A, and R-480A in the A1 Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-453a/
[ "refrigerant", "safety_class" ]
null
[]
[ { "as_of": "2026-08-11T00:00:00", "field": "retrofit_or_new", "source": "https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives", "source_quote": "List the blend R-453A as acceptable, subject to ...
null
null
240
r-454a
Acceptable with Use Conditions: See rule for detailed conditions.
R-454A
N
A2L
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-454A | Opteon™ XL40 | N | 0 | 240 | A2L | <https://www.govinfo.gov/content/pkg/FR-2021-05-06/pdf/2021-08968.pdf> May 6, 2021 (pdf) (583 KB) | Acceptable with Use Conditions: See rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-454a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
[]
null
null
Opteon™ XL40
470
r-454b
Acceptable with Use Conditions: See rule for detailed conditions.
R-454B
N
A2L
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-454B | Opteon™ XL41 | N | 0 | 470 | A2L | <https://www.govinfo.gov/content/pkg/FR-2021-05-06/pdf/2021-08968.pdf> May 6, 2021 (pdf) (583 KB) | Acceptable with Use Conditions: See rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-454b/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
[ { "field": "trade_name", "versions": [ { "as_of": "2026-08-11T00:00:00", "source": "https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps", "source_quote": "R-454B | Opteon™ XL41 | N | 0 | 470 | A2L | <https://www.govinfo.gov/content/...
[ { "as_of": "2026-08-11T00:00:00", "field": "lubricant", "source": "https://www.trane.com/content/dam/Trane/Commercial/global/products-systems/equipment/unitary/split-systems/rauj-cauj-20-to-120-tons/SS-APG018A-EN_11102024.pdf", "source_quote": "than R-454B will need to be upgraded. As of this docume...
null
Opteon™ XL41
150
r-454c
Acceptable with Use Conditions: See rule for detailed conditions.
R-454C
N
A2L
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-454C | Opteon™ XL20 | N | 0 | 150 | A2L | <https://www.govinfo.gov/content/pkg/FR-2021-05-06/pdf/2021-08968.pdf> May 6, 2021 (pdf) (583 KB) | Acceptable with Use Conditions: See rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-454c/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
[]
null
null
Opteon™ XL20
null
r-456a
null
R-456A
null
A1
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
ASHRAE 34-2024 categorizes HFO-1234yf and R-444A as being in the A2L Safety Group and R-453A, R-456A, and R-480A in the A1 Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-456a/
[ "refrigerant", "safety_class" ]
null
[]
[ { "as_of": "2026-08-11T00:00:00", "field": "retrofit_or_new", "source": "https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives", "source_quote": "List the blend R-456A as acceptable, subject to ...
null
null
140
r-457a
Acceptable with Use Conditions: See rule for detailed conditions.
R-457A
N
A2L
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-457A | Forane® 457A | N | 0 | 140 | A2L | <https://www.govinfo.gov/content/pkg/FR-2021-05-06/pdf/2021-08968.pdf> May 6, 2021 (pdf) (583 KB) | Acceptable with Use Conditions: See rule for detailed conditions. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-457a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
[]
null
null
Forane® 457A
1,650
r-458a
Acceptable
R-458A
R
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-458A | Bluon TdX 20 | R | 0 | 1,650 | A1 | <https://www.govinfo.gov/content/pkg/FR-2017-07-21/pdf/2017-15379.pdf> July 21, 2017 (pdf) (314 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-458a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Bluon TdX 20
null
r-480a
null
R-480A
null
A1
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
ASHRAE 34-2024 categorizes HFO-1234yf and R-444A as being in the A2L Safety Group and R-453A, R-456A, and R-480A in the A1 Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-480a/
[ "refrigerant", "safety_class" ]
null
[]
[ { "as_of": "2026-08-11T00:00:00", "field": "retrofit_or_new", "source": "https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives", "source_quote": "List the blend R-480A as acceptable, subject to ...
null
null
2788
r-502-hcfc-r-402a
For service applications only
HCFC R-402A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-402A 2788 R-502 L,M AB & MIN POE-32 & MIN POE-32 For service applications only, trade name: Freon HP80
https://referencesource.org/hvac-component-refrigerant-compatibility/r-502-hcfc-r-402a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
AB & MIN
null
null
R-502
Freon HP80
2416
r-502-hcfc-r-402b
For service applications only
HCFC R-402B
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-402B 2416 R-502 L,M AB & MIN POE-32 & MIN POE-32 For service applications only, trade name: Freon HP81
https://referencesource.org/hvac-component-refrigerant-compatibility/r-502-hcfc-r-402b/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
AB & MIN
null
null
R-502
Freon HP81
3152
r-502-hcfc-r-408a
For service applications only
HCFC R-408A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HCFC R-408A 3152 R-502 L,M AB & MIN POE-32 & MIN POE-32 For service applications only, trade name: FX10
https://referencesource.org/hvac-component-refrigerant-compatibility/r-502-hcfc-r-408a/
[ "gwp", "listing_status", "lubricant", "refrigerant", "replaces", "trade_name" ]
AB & MIN
null
null
R-502
FX10
3922
r-502-hfc-r-404a
null
HFC R-404A
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-502 L,M L,M POE-32 Freon HP62, Forane™ FX70 HFC R-404A 3922 R-502 L,M L,M POE-22C For use with compressors manufactured in India
https://referencesource.org/hvac-component-refrigerant-compatibility/r-502-hfc-r-404a/
[ "gwp", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-502
Freon HP62, Forane™ FX70
3985
r-502-hfc-r-507
null
HFC R-507
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
HFC R-507 3985 R-502 L,M L,M POE-32 Genetron™ AZ50
https://referencesource.org/hvac-component-refrigerant-compatibility/r-502-hfc-r-507/
[ "gwp", "lubricant", "refrigerant", "replaces", "trade_name" ]
POE-32
null
null
R-502
Genetron™ AZ50
3,990
r-507-r-507a
Acceptable
R-507, R-507A
R/N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-507, R-507A | AZ-50 | R/N | 0 | 3,990 | A1 | <https://www.govinfo.gov/app/details/FR-1996-09-05/96-22649> September 5, 1996 ; <https://www.govinfo.gov/content/pkg/FR-2002-12-20/pdf/02-32130.pdf> December 20, 2002 (pdf) (168 KB) | Acceptable |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-507-r-507a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
AZ-50
630
r-513a
Acceptable in self-contained units.
R-513A
N
A1
https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps
R-513A | Opteon® XP-10 | N | 0 | 630 | A1 | <https://www.govinfo.gov/content/pkg/FR-2024-12-11/pdf/2024-28307.pdf> December 11, 2024 (pdf) (300 KB) | Acceptable in self-contained units. |
https://referencesource.org/hvac-component-refrigerant-compatibility/r-513a/
[ "gwp", "listing_status", "refrigerant", "retrofit_or_new", "safety_class", "trade_name" ]
null
null
null
null
Opteon® XP-10
null
r-516a
acceptable, subject to use conditions
R-516A
null
A2L
https://www.federalregister.gov/documents/2025/11/10/2025-19812/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives
The EPA is proposing to list HCR 4141, HFO-1234ze(E), and R-516A as acceptable, subject to use conditions, for this end-use. HCR 4141 is a higher flammability refrigerant blend with each component in the A3 Safety Group. HFO-1234ze(E) and R-516A are lower flammability refrigerants, both in the A2L Safety Group.
https://referencesource.org/hvac-component-refrigerant-compatibility/r-516a/
[ "listing_status", "refrigerant", "safety_class" ]
null
null
null
null
null
1
r-704-helium
Copeland ZC scroll models only
R-704 helium
null
null
https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11
R-704 helium 1 Cryogenic PAG Copeland ZC scroll models only
https://referencesource.org/hvac-component-refrigerant-compatibility/r-704-helium/
[ "gwp", "listing_status", "lubricant", "refrigerant" ]
PAG
null
null
null
null
End of preview. Expand in Data Studio

HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant

Canonical, always-current version: https://referencesource.org/hvac-component-refrigerant-compatibility/ Machine-readable: https://referencesource.org/hvac-component-refrigerant-compatibility/data.json — this mirror is a point-in-time copy.

  • Last verified: 2026-08-11
  • Stale after: 2027-08-11 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
  • Records: 109

Which refrigerant substitutes for which in air conditioning, heat pump and refrigeration equipment, drawn from the EPA SNAP substitutes list, compressor-manufacturer bulletins (Copeland) and refrigerant-manufacturer replacement guides (Chemours, Honeywell, Arkema). Each record carries the ASHRAE safety classification, GWP, whether the substitute is approved for retrofit or new equipment only, and the compatible lubricant. Answers 'can I put R-454B in an R-410A system', 'what replaces R-22 without changing the oil', and 'is this substitute EPA-acceptable' — questions where the wrong answer damages equipment or breaks federal rules.

Provenance — what every record carries

Every record carries source (the URL the value was read from) and source_quote (a verbatim quote from that page stating it). A value you cannot check against its page is indistinguishable from an invented one; these can all be checked. Each record is also individually addressable on the canonical site at its url.

Licence position

Factual compilation with source citations. EPA SNAP substitute listings are US government work (public domain). Manufacturer figures (Copeland, Chemours, Honeywell, Trane, Arkema) are facts taken with short attributed quotes linking back to the published guide.

Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.

Sources

Fields

See any record in data/records.jsonl — field names are self-describing, and the canonical page for each record renders them with labels: https://referencesource.org/hvac-component-refrigerant-compatibility/

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