Putting in R-22a in your R-22 unit can be costly. Not only with potential total loss of your unit but it could also cause property damage due to an unintended explosion or it could even cause bodily harm/death. Doesn’t seem like it’ worth saving a couple hundred bucks. I’m not a fan of big government. Never have been. The phase-out of several common commercial refrigerants is leading building owners to look for greener alternatives. R22, one of several hydrofluorochlorocarbon (HCFC) refrigerants commonly used in commercial air conditioners, cold storage, chillers and retail food refrigeration, is likely to disappear from the market soon. R32 has been traditionally used as refrigerant former for some chlorine-free HFC mixtures (e.g. R407 series, R410A, R427A, and R438A) developed to substitute R22 [21]. In fact, the refrigerant that R32 is intended to replace, R410A, contains 50% R32 (the rest is R125, which is also commonly used as a fire suppressant agent). Air Conditioner. 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. For one, R 22 is its own refrigerant R-22 Replacement Alternatives. As a matter of fact, there are many different alternatives to R-22 that don’t deplete the ozone layer, including: R-134a, R-507, R-404A, R-407c and R-410A. R-410A is the best alternative option for air conditioning applications, while the best alternative for refrigeration applications are R-404A and R-507. High SEER R22 units are no longer made, and only carry their ratings when installed with matched equipment. Putting a 16 SEER outdoor unit on a 10-15 year old coil doesn't equal 16 SEER efficency. The only high SEER units now are R410A. These cannot use R22 and cannot be used with an indoor coil that's only rated for R22. .

can i replace r22 with r32