Essential Functions: Analyzes, repairs, and performs preventive maintenance on all HVAC installations, fire and boiler alarm and surveillance control systems (high and low pressure); defines and implements preventive maintenance programs for motors, steam condensate return traps, pumps, controls, compressors, auxiliary heating and cooling systems, and related devices; compiles reports for changes, including reporting costs, estimating values, and justifying changes; reviews work of construction; maintains air distribution and balance systems; adds chemicals and analyzes water treatment for chill water and heating systems; plans and installs auxiliary control systems; prepares system for winter carry-over and cold weather conditions; calibrates pipe and vent sizes; may design and install sheet metal; installs/inspects thermostats, and electrical wiring of furnaces, unit heaters, and cooling units; reviews new designs and concepts. Minimum Qualifications: Experience: Charging, starting, and checking for proper operation of HVAC type equipment and related devices; troubleshooting and repairing digital electronic and pneumatic HVAC control systems; starting, stopping, and troubleshooting chiller operations and chilled water systems; modifying and/or installing natural gas and water piping; operating, maintaining, diagnosing problems, and repairing industrial type HVAC systems and control devices; performing basic carpentry, plumbing, electrical, and sheet metal work; welding and repairing material and brazing pipe; cutting, brazing and soldering high pressure refrigerant piping.