What alternatives to R-22 are acceptable and available?
EPA has found acceptable several alternatives to R-22 that do not deplete the ozone layer. These include R-134a, R-404AA, R-407C, and R-410A. In the United States, R-410A is the most popular choice for home air conditioners. R-410A is sold under several trade names, including GENETRON AZ-20®, SUVA 410A®, and Puron®. EPA evaluates and regulates substitutes for ozone-depleting chemicals that are being phased out in its Significant New Alternatives Policy (SNAP) Program. EPA maintains a list of acceptable and unacceptable substitutes according to end use, including refrigeration and air-conditioning. To help technicians decide which alternatives are most appropriate for specific uses, EPA developed a list of questions to ask a supplier before purchasing alternative refrigerants. If substitutes are used in retrofitted equipment, technicians should be trained on proper retrofit installation and servicing techniques.
EPA has found acceptable a number of alternatives to R-22 that do not deplete the ozone layer. These include R-134a, R-404A, R-407C, and R-410A. In the United States, R-410A is the most popular choice for home air conditioners. R-410A is sold under several trade names, including GENETRON AZ-20®, SUVA 410A®, Forane® 410A, and Puron®. EPA evaluates and regulates substitutes for ozone-depleting chemicals that are being phased out in its Significant New Alternatives Policy (SNAP) Program. EPA maintains a list of acceptable and unacceptable substitutes according to end use, including end uses in the refrigeration and air-conditioning sector. To help technicians decide which alternatives are most appropriate for specific uses, EPA developed a list of questions to ask before purchasing alternative refrigerants. If substitutes are used in retrofitted equipment, technicians should be trained on proper retrofit installation and servicing techniques. Note that some alternatives, including R-410A,
