Have an Older A/C? Why the R-22 Phaseout is Important To You by Mike Rampey | July 24, 2014July 24, 2014 If you still have an older A/C unit, the R-22 phaseout is of concern. Because of depletion of the ozone layer, the federal government, in accordance with the Montreal Protocol of 1987, […]Read More Filed Under: Air Conditioning Tagged With: A/C unit– Broken Arrow– HVAC systems– hydrofluorocarbon– Oklahoma– Older A/C– R-22– R-22 Phaseout– refrigerant– Tulsa