Recently, the Underwriters Laboratory (UL) has approved the second edition of its UL 60335-2-89 standard, which includes higher R-290 charge limits that would expand its potential uses in commercial refrigeration.
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.
This new track will incorporate the NASRC’s network of industry experts to explore ideas and trends in commercial refrigeration through technical papers, presentations, and panel discussions