TL;DR
R-410A is the HFC blend that replaced R-22 in residential cooling equipment from the mid-2000s onward, operating at roughly 50 to 60 percent higher pressures and therefore requiring gauges, components, and POE oil specific to it. Though harmless to the ozone layer, its global warming potential of 2,088 put it on the AIM Act phasedown list, and new equipment shifted to R-32 and R-454B in 2025.
What it means
R-410A is the HFC blend that replaced R-22 in residential cooling equipment from the mid-2000s onward, operating at roughly 50 to 60 percent higher pressures and therefore requiring gauges, components, and POE oil specific to it. Though harmless to the ozone layer, its global warming potential of 2,088 put it on the AIM Act phasedown list, and new equipment shifted to R-32 and R-454B in 2025. Millions of installed systems will still need it for service for years to come.
Where it sits in the glossary
R-410A is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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