HCFC - R416A

An R-134a based blend, with R-124 to cut pressure and hydrocarbon R-600 (butane) to improve oil return. This blend matches R-12 pressures at condenser temperatures, and pressures in the evaporator will need to be a few psi lower than R-12 to maintain proper temperature. There is a low temperature glide. Although the blend does not mix with mineral oils the addition of hydrocarbon thins the oil for satisfactory oil return. Systems will experience a loss of capacity, especially at lower temperatures.