A very hot topic in the HVAC world right now is the difference between the R-22 and R410A refrigerants.
R-22
- Usually referred to by the brand name Freon
- R-22 was outlawed for use in new units as of 2010
- R-22 is a hydro-chlorofluorocarbon (HCFC) which contributes to the depletion of the ozone
- Usually referred to by the brand name Puron
- Is approved for use in new residential air conditioning units
- R-410A is a hydro-fluorocarbon (HFC) which does not harm the ozone
- R-410A will become the new standard for A/C systems in the US starting in 2015
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