Knoxville, TN30+ days ago
Diagnose and maintain all mechanical, electrical, and control aspects of the supermarket refrigeration systems through repair or replacement of defective parts in units and equipment and their controls, including thermostats, automatic switches, fan controls, log switches, damper motors, louvers, replays, filters, controls, belts, compressors, heat exchangers, high-limit controls, pressure controls, safety valves, and automatic gas valves. Inspect, repair, modify, and install HVAC equipment including refrigeration and air conditioning compressors, receivers, condensers, chillers, water cooling towers, forced air converter units, pumps, automatic and hand valves, expansion valves, and capillary tubes.