Extensive operational knowledge of HVAC, plumbing, glycol systems, DX systems, CRAH/CRAC unit, humidifiers, chillers, RTUs, chilled water pumps, leak detection, sump pumps, ductwork, VAVs, VFDs, cooling towers, digital controls and BMS, and fire detection and suppression. Work directly with the customer and/or Csquare support staff to identify and troubleshoot as necessary to isolate the root cause of problems to include standing, bending and kneeling as needed to perform this task.