As an added benefit, Lennox laboratory analysis and independent testing have shown that R410A allows higher heat transfer than R-22, resulting in more efficient operation. R-410A contains no chlorine, so it’s not damaging to the atmosphere’s ozone layer. R-410A was developed as an alternative to R-22 (freon), which will be phased out over the coming years in response to international environmental concerns. EPA's newest, most stringent environmental guidelines. R-410AĪ chlorine-free refrigerant that meets the U.S.
#Refrigerant coolant plus#
First ASHRAE digit is the number of carbon atoms minus 1 (C-1) the second digit is the number of hydrogen atoms plus 1 (H+1) the third digit is the number of fluorine atoms any remaining spaces are chlorine atoms. In the future, R-22 supplies will be more limited and costs to service equipment with R-22 may rise. The R number of a chemical refrigerant is assigned systematically according to molecular structure. The phase out period provides time to switch to ozone-friendly refrigerants when you normally would replace your air conditioner. You are not required to stop using R-22 air conditioners nor to replace existing equipment. The production (not use) of R-22 is being phased out. After 2020, only recovered, recycled, or reclaimed supplies of R-22 will be available. In 2020, R-22 will no longer be produced or imported. Lennox offers dry-charged units for those who still have R-22-compatible systems. The old standard for residential air conditioners, now being phased out by the U.S. Most residential air-conditioning units contain the standard R-22 refrigerant, or freon. Refrigerant is a chemical that produces a cooling effect while expanding or vaporizing.
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