22nd September 2021, Dubai—R417A refrigerant can be used as a straight replacement for R22. The gas does not require liquid charging and can be used to top up if the system has a leak (as long as the system has R417A at the start).

One goal of producing these blends was to produce chlorine-free refrigerants (ODP = 0) for the straightforward conversion of existing R22 plants, similar to the creation of R422A (R422A as a substitute for R22 and R502).