R-417A is a non-azeotropic mixture formed by a ternary mixture of R-125, R-134a and R-600, replacing R-22, no effects against ozone.
It is compatible with mineral oil installation in most cases, so it is a direct replacement for R-22.
The composition of this refrigerant has been formulated specifically to be used in R-22 equipment, without any modification thereto, as its pressures and performances are similar to those of R-22.
In addition, it can be used with the same mineral oil of the equipment.
R-417A must always be transferred in liquid phase from the bottle. In case of partial leak, the system can be refilled with R-417A without affecting in a significant way the performance. R-417A is not flammable and has a toxicity profile similar to R-134a. Its classification is A1 group L1.
Sources : https://gas-servei.com/shop/docs/technical-data-sheet-r-417a-gas-servei.pdf
