Stationary Refrigeration - Resources for Homeowners

This information can help homeowners learn more about purchasing, maintaining, and disposing of stationary refrigeration and air-conditioning equipment.

Purchasing and Replacing Equipment

Maintaining and Servicing Equipment

Disposing Equipment

Flammable Refrigerants and Technician Safety

Refrigerants with “22a” or “R-22a” in their names are highly flammable substances that are not approved for use in existing air-conditioning systems. These refrigerants have never been submitted to EPA for review of their health and environmental impacts. Using these propane-based refrigerants in an air conditioner that is not designed for flammable refrigerants poses a threat to homeowners and service technicians. EPA is investigating instances where propane-based refrigerants have been marketed and used as a substitutes for hydrochlorofluorocarbonHelphydrochlorofluorocarbonA compound consisting of hydrogen, chlorine, fluorine, and carbon. The HCFCs are one class of chemicals being used to replace the CFCs. They contain chlorine and thus deplete stratospheric ozone, but to a much lesser extent than CFCs. HCFCs have ozone depletion potentials (ODPs) ranging from 0.01 to 0.1. Production of HCFCs with the highest ODPs are being phased out first, followed by other HCFCs. A table of ozone-depleting substances ( shows their ODPs, GWPs, and CAS numbers. HCFCs are numbered according to a standard scheme ( (HCFC)-22 (also called R-22) and has taken enforcement actions where appropriate.

Access more information about R-22a and alternatives for air conditioning.

Reporting Violations of the Section 608 Regulations

Access information on how to report a violation of the Section 608 regulations. Learn about EPA’s efforts to enforce regulations to protect the ozone layer.