Resources

The latest in HVAC news and air quality development

UNICO in the News

“We are pleased to announce that we have once again renewed our partnership with the National Trust for Historic Preservation, the leading preservation organization in the United States, working every day to save important places, spark economic development, revitalize communities,…

Installing New Units

The transition away from ozone-depleting R-22 to systems that rely on replacement refrigerants like R-410A has required redesign of heat pump and air conditioning systems. New systems incorporate compressors and other components specifically designed for use with specific replacement refrigerants….

Servicing Existing Units

Existing units using R-22 can continue to be serviced with R-22. There is no EPA requirement to change or convert R-22 units for use with a non-ozone-depleting substitute refrigerant. Such changes, called “retrofits,” are allowed if the alternative has been…

Alternatives to R-22 in Residential Air Conditioning

As R-22 is gradually phased out, non-ozone-depleting alternative refrigerants are being introduced. Under the Clean Air Act, EPA reviews alternatives to ozone-depleting substances to evaluate their effects on human health and the environment. EPA has reviewed several alternatives to R-22…