When did AC units stop using R22?
When did AC units stop using R22? January 1, 2010 On January 1, 2010, the Environmental Protection Agency (EPA) implemented a ban on the production and import of R22, except for continuing servicing needs of existing equipment. The EPA also banned the manufacture and installation of new R22 AC or heat pump systems. How do you tell if you have R22 or 410a? The refrigerant type is usually on the compressor label or nameplate. Additionally the oil type is usually noted. R22 uses MO (mineral oil) in AC applications while R410A uses POE (polyolyester oil.) A refrigerant analyser can be...