Troubleshoot complex mechanical equipment including chillers, boilers, cooling towers, pumps, air-handling units, fan coil units, CRAC units, VAV systems, hydronic systems, piping, and associated HVAC equipment. Qualifications: Applicant must have a high school diploma or GED with a minimum of 8+ years of experience working with complex HVAC systems and equipment including chillers, boilers, package units, VAV systems (direct digital, pneumatic and automated control systems) .