Is R422D a Replacement for R22

R422D (Freon™/Isceon® MO29) is a HFC blend, originally designed to replace R22 in direct expansion water chillers. It is now used as a retrofit refrigerant for R22 in low and medium temperature refrigeration and air conditioning systems.

What is an acceptable replacement for R22?

The best replacement for R-22 Freon is usually R-407c. It has a very low loss in capacity (0 – 5%) relative to R-22 and is less expensive than many other R-22 replacement refrigerants. If a system has R22 in it already you cannot use a replacement refrigerant to simply add to the R22.

Can you still use R422D?

14.6kg R422D There are no current plans to prohibit the use of these systems in the future, nor restrict the use of serviceability of systems with a charge lower than the 40 tonnes CO2 equivalent.