|Composition||R-134a (52%) R-125 (25%) R-32 (23%)|
|Type||HFC Zeotropic blend|
|ASHRAE safety classification||A1-non-toxic and non-flammable|
*GWP value for 100-Year time horizons according to IPCC 2007 Fourth Assessment Report.
A blend of R-32, R-125, and R-134a that has very similar properties to R-22 in air conditioning equipment. R-407C has the closest property match to R-22 in an air conditioning retrofit project compared to other blends on the market. It can also be used in medium temp R-22 refrigeration systems. R-407C has a 10°F temperature glide. New systems built with R-407C must have POE lubricants, and retrofitted R-22 systems would need the residual oil flushed with POE.