Able to troubleshoot, diagnose and repair: air- and water-cooled chillers, cooling towers, hot and chilled water systems, low pressure heat and pool boilers, DX-split and packaged systems, air handlers, dual-duct distribution systems, fan-coil units, roof top units, water sourced heat pumps, VRF/VRV systems, Variable Frequency Drives and hydronic heating cooling and pool circulation pumps.