NATE seminar hosted by HVAC market equipment maker Testo
HVAC market equipment maker Testo Inc. hosted a North American Technician Excellence seminar May 28 at Johnstone Supply’s Sun Valley, Calif., location.
The seminar was designed to help Southern California contractors learn how HVACR products work pertaining to superheat, subcooling and saturation. Testo’s regional manager Bob Allomong and Johnstone Supply Group’s manufacturer representative Debbi Vanderwalker taught the class.