Just as there were no perfect replacements for R-12 or R-502, there is no perfect replacement for R-22. And while the term drop-in seems to be freely used in reference to R-22 replacements, there are no replacements that you can simply drop-in in place of R-22 and walk away without any further concern. R134A refrigerant from the aspect of ozone layer protection, can be used to replace R22, medium screw compressor, the pressure is lower than R22, there is no danger in the replacement, but the unit volume cooling capacity of R134A refrigerant is 40% less than R22. R32, difluoromethane, is a mature and stable refrigerant with good heat transfer Air Conditioner. You’re wondering if you can mix different refrigerants for your air conditioning system. The short-long-only answer is no, never. There are many reasons why it’s impractical, illegal, and not economical for a homeowner to mix refrigerant types. CFC-type refrigerants like R-22 – the most popular in the United States by far The full cost to replace refrigerant in an AC unit is $100 to $1,800 based on the coolant and unit type and length of the refrigerant lines. The home AC refrigerant recharge that still runs on R22 is even more expensive, given the lower available supply of R22 coolant. Replacing R22 coolant costs $50 to $80 per pound.

This is why I told anyone who in the market for a new system to wait for R32 instead of installing R410A now. If you get charged $125 a pound now, its just going to get even higher next year. Btw that HVAC company you dealing with just after your money. Don't worry r32 is already on the chopp8ng block.

mixture R32/R125/R600a (in the ratio of 0.4:0.4:0.2, by mass) to be used in air conditioners to replace R22 and reported that the new refrigerant mixture is an ozone-friendly alternative to phase out R22 in the existing refrigeration systems to extend its life without modifications. TEGWI of MlWm. 361 240 112 236 100 223 374 168 187

can i replace r22 with r32