HCFCs are man-made refrigerants (the best known is R-22, sold for years under the Freon name) built from hydrogen, chlorine, fluorine, and carbon. They cool your home by absorbing and releasing heat as they cycle through your air conditioner or heat pump. The trouble is the chlorine they carry, which damages the ozone layer when it escapes. Because of that, the EPA phased them out under the Clean Air Act. Production and import of new R-22 in the United States ended in 2020, so remaining supply is recycled or stockpiled.
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HCFCs are man-made refrigerants (the best known is R-22, sold for years under the Freon name) built from hydrogen, chlorine, fluorine, and carbon. They cool your home by absorbing and releasing heat as they cycle through your air conditioner or heat pump. The trouble is the chlorine they carry, which damages the ozone layer when it escapes. Because of that, the EPA phased them out under the Clean Air Act. Production and import of new R-22 in the United States ended in 2020, so remaining supply is recycled or stockpiled.
Is R-22 refrigerant still available for home AC units?
R-22, an HCFC, is no longer produced or imported in the United States as of 2020. Existing systems can still be serviced with recycled or reclaimed R-22, but prices are high, so many homeowners choose to replace older R-22 units instead.
Source: The Cooling Company
In a real home, HCFCs show up in air conditioners and heat pumps installed before roughly 2010. If your outdoor unit is 15 years or older and the nameplate reads R-22, it runs on an HCFC. When it develops a leak or the compressor fails, repairs get expensive because R-22 is now scarce, which often makes replacement the smarter call.
Check the nameplate on your outdoor condenser. If it lists R-22, start budgeting for replacement instead of a major repair, since recharging an aging R-22 leak can cost more than the unit is worth.
“Check the nameplate on your outdoor condenser. If it lists R-22, start budgeting for replacement instead of a major repair, since recharging an aging R-22 leak can cost more than the unit is worth.”
The "Freon" many homeowners remember is largely R-22, an HCFC. The 1987 Montreal Protocol set its global phase-out in motion to help the ozone layer recover.
What refrigerant replaced R-22 in new systems?
Most new residential systems use R-410A, an HFC with no chlorine and no ozone-depleting potential. Newer models are shifting to R-32 and R-454B for a lower climate impact.
Can I still repair my R-22 air conditioner?
Yes. A licensed technician can repair and recharge it with reclaimed R-22, but supply is limited and costs keep rising. For a leaking or aging unit, replacement is often the smarter long-term choice.
How do I know if my AC uses an HCFC?
Look at the data plate on your outdoor condenser, which lists the refrigerant type. If it reads R-22, your system uses an HCFC. R-410A or R-32 means it does not.
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