While the HVAC community had its share of heated discussions in 2011, none were hotter than the industry debate over dry-shipped R-22 units. Carrier wound up at the center of this debate after petitioning the Environmental Protection Agency (EPA) to close the loophole allowing the installation of new R-22 units. For spearheading Carrier’s petition and leading the charge to continue the phaseout of R-22, John Mandyck is a 2011 NEWSmaker.