Ability to repair, adjust, maintain, retrofit and troubleshoot the following equipment: Refrigerant Controls (metering devices), Electronic Controls, Pneumatic Controls, Commercial Refrigeration, Ice Machines, Duct Installation. Hermetic and Semi-Hermetic Compressors, Heat Pumps to 10-tons, Split Systems to 10-tons, Packaged Units to 50-ton. All types and sizes of Ductless Splits, Electric Motors (1-phase and 3-phase), Electric Motor Controls (contactors, starters, relays, disconnects, thermostats, etc.), Light Commercial Furnaces. Boilers, Burners and related controls (oil and gas), Water Pumps, Intake and Exhaust Fans, Economizers, Humidifiers, Capacity Controls (Unloader, Hot Gas Bypass Valves, Fan Cycling Controls, Motor Masters), Flame Safeguard Controls, Air Compressors, Air Driers. Reciprocating Chillers, VAV’s Systems Controls and Terminal Boxes. Variable Frequency Drives, Various types and sizes of Cooling Towers, Various types and sizes of Boilers, Various types and sizes of Computer Room Systems. Soldering and Brazing. Combustion Analysis, Heat Load Calculations, Heat Loss Calculations, Cooling Load Calculations. Basic navigation thru multiple Building Automation Controls Systems.