Refrigerant R-125/R-134a/R-600a (28.1/70.0/1.9) — NU-22 old composition — component and lubricant compatibility
What is the retrofit / new for Refrigerant R-125/R-134a/R-600a (28.1/70.0/1.9) — NU-22 old composition — component and lubricant compatibility?
For Refrigerant R-125/R-134a/R-600a (28.1/70.0/1.9), retrofit / new is R/N; ashrae safety class is A1; gwp is 1,990; listing status / notes is Acceptable, verified against its source on 2026-08-11.
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 |
— epa.gov, retrieved 2026-08-11
- Refrigerant
- R-125/R-134a/R-600a (28.1/70.0/1.9) verified
- Trade name(s)
- NU-22 old composition verified
- Retrofit / new
- R/N verified
- ASHRAE safety class
- A1 verified
- GWP
- 1,990 verified
- Listing status / notes
- Acceptable verified
Source
- epa.govhttps://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps