Education/Experience: High school diploma or general education degree (GED) and one or more years' related experience in large-scale commercial or industrial refrigeration systems, boiler operation and maintenance, commercial HVAC and digital building automation systems. Screws, bolts, rivets, welds, and braces parts to assemble structural and functional components such as motors, controls, switches, gauges, wiring harnesses, valves, pumps, compressors, condensers, cores, and pipes on chillers, boilers, and HVAC equipment.