Perform preventative maintenance on the same; Maintenance and repair of chillers, centrifugal and reciprocating compressors, evaporators, condensers, DDC and pneumatic valves, associated pumps, and cooling towers; Maintenance and repair of DX AC units, window AC units, including hermetic, digital scroll compressors, expansion valves, capillary tubes, and coils; Maintenance and repair of HVAC related air compressors, receivers, and air dryers; Maintenance and repair of low pressure steam systems, F&T traps, vacuum and condensate pumps, PRV stations, tube and shell, and plate heat exchangers, hydronic systems; Maintenance and repair of low-pressure boilers, safety valves and controls, low water cut-offs; Proficient knowledge of Direct Digital Control and pneumatic heating controls; Maintenance and repair of large industrial AHUs, VAV boxes, and ERUs, heat wheels, controls, face and bypass dampers, motors, bearings, coils, timers, control panels, and evaporative coolers. Candidate must have basic familiarity with the usage of computers, computer software and internet browsing; proficient knowledge and understanding of Building Automation (BAS) and control systems to include but not limited to Schneider Electric, Siemens Apogee, Desigo, and BacNet interfaces; adept computer/instrumentation ability used in diagnosing and programming HVACR equipment; strong reasoning ability and troubleshooting skills; multitasking with the capability of dealing with a full range of HVACR problems and situations; ability to communicate clearly and concisely; ability to work in/outdoors in confined and/or high spaces, under a variety of working conditions including inclement weather; ability to regularly lift, carry, push, pull and/or move up to 50 lbs.