Most standard recovery machines are designed to handle A1 refrigerants, which means they may not have the safety features required for mildly flammable refrigerants.
The ninth annual Lennox VisionTECH conference, held at Glacier Canyon Lodge, was a day-and-a-half celebration of all things Lennox and all things HVAC.
Some contractors are taking matters into their own hands and creating specialized in-house training programs focused specifically on the skills required for technicians to become refrigeration experts.