R-22 Refrigerant
R-22, also known as HCFC-22 or by the brand name Freon, is a hydrochlorofluorocarbon refrigerant that was the standard for residential air conditioning systems for over 40 years. R-22 was effective and widely used, but it was found to deplete the earth's ozone layer. Under the Montreal Protocol and the U.S. Clean Air Act, R-22 production and import were phased out entirely by January 1, 2020. Existing stockpiles and reclaimed refrigerant remain the only legal sources. Newer systems use R-410A or R-454B, which do not damage the ozone layer. Homeowners with R-22 systems face rising costs for refrigerant and increasingly limited availability.
💡 Key Takeaways
- ✓R-22, also known as HCFC-22 or by the brand name Freon, is a hydrochlorofluorocarbon refrigerant that was the standard for residential air conditioning systems for over 40 years. R-22 was effective and widely used, but it was found to deplete the earth's ozone layer. Under the Montreal Protocol and the U.S. Clean Air Act, R-22 production and import were phased out entirely by January 1, 2020. Existing stockpiles and reclaimed refrigerant remain the only legal sources. Newer systems use R-410A or R-454B, which do not damage the ozone layer. Homeowners with R-22 systems face rising costs for refrigerant and increasingly limited availability.
- ✓R-22 production and import ended January 1, 2020. Only reclaimed and existing stockpile R-22 is legally available.
- ✓You cannot convert an R-22 system to R-410A without replacing major components including the compressor, coil, and line set.
- ✓Drop-in replacement refrigerants exist but may void warranties and are not recommended by most major manufacturers.
R-22 Refrigerant
/ˌɑːr ˈtwɛnti tuː rɪˈfrɪdʒərənt/
Definition
R-22, also known as HCFC-22 or by the brand name Freon, is a hydrochlorofluorocarbon refrigerant that was the standard for residential air conditioning systems for over 40 years. R-22 was effective and widely used, but it was found to deplete the earth's ozone layer. Under the Montreal Protocol and the U.S. Clean Air Act, R-22 production and import were phased out entirely by January 1, 2020. Existing stockpiles and reclaimed refrigerant remain the only legal sources. Newer systems use R-410A or R-454B, which do not damage the ozone layer. Homeowners with R-22 systems face rising costs for refrigerant and increasingly limited availability.
Is R-22 refrigerant still available?
R-22 production ended in 2020 in the United States. Limited supplies of reclaimed R-22 are still available but increasingly expensive. Systems using R-22 should be planned for replacement.
Source: The Cooling Company
Quick Facts
How R-22 Refrigerant Works
R-22 production ended in 2020, plan ahead if your system still uses it.
Real-World Application
Thousands of Las Vegas homes still operate AC systems charged with R-22. When these units develop leaks or need servicing, homeowners face refrigerant costs of $75 to $150+ per pound, compared to $15 to $30 per pound for R-410A. For a typical 3 to 5 pound recharge, the R-22 cost alone can exceed $500, making system replacement an increasingly attractive option.
Pro Tip
Check the label on your outdoor AC unit for the refrigerant type. If it says R-22 or HCFC-22, start budgeting for a system replacement rather than investing in expensive repairs on aging equipment.
“Check the label on your outdoor AC unit for the refrigerant type. If it says R-22 or HCFC-22, start budgeting for a system replacement rather than investing in expensive repairs on aging equipment.”
Important Things to Keep in Mind
- R-22 production and import ended January 1, 2020. Only reclaimed and existing stockpile R-22 is legally available.
- You cannot convert an R-22 system to R-410A without replacing major components including the compressor, coil, and line set.
- Drop-in replacement refrigerants exist but may void warranties and are not recommended by most major manufacturers.
Did You Know?
At its peak, R-22 was used in over 100 million residential AC systems across the United States. The phaseout is one of the largest equipment transitions in HVAC history.
FAQ
How do I know if my AC uses R-22?
Check the nameplate on your outdoor unit. It lists the refrigerant type. Systems manufactured before 2010 most likely use R-22.
Can I switch my R-22 system to R-410A?
Not directly. R-410A operates at higher pressures and requires different components. A full system replacement is needed to switch refrigerant types.
How long can I keep using my R-22 system?
As long as it works and does not need refrigerant. But when a repair involves the refrigerant circuit, the high cost of R-22 often makes replacement the smarter financial choice.
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