To make the best heating and cooling decisions, it’s important to know the differences between refrigerants R-22 and R-410A.
- Often referred to by a brand name like “Freon”
- Discontinued for use in new AC systems in 2010
- Is a hydro-chlorofluorocarbon (HCFC), which contributes to ozone depletion
- Often referred to by a brand name like “Puron”
- Approved for use in new residential air conditioners
- Is a hydro-fluorocarbon (HFC), which does not contribute to ozone depletion
- R-410A functions at a higher pressure than R-22, so new compressors are built to withstand greater stresses.
- All air conditioners use an oil to keep the compressor lubricated during operation. R-22 systems use mineral oil and R-410A systems use synthetic oil. The synthetic oil is generally more soluble with R-410A than mineral oil is with R-22. This means the R-410A system operates more efficiently reducing wear and tear on the compressor.
In summary, R-410A has become the new standard for U.S. residential air conditioning systems. Newer AC models are designed to be used with R-410A for reliable and more efficient operation.
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