Mechanical and Electrical Systems Upgrade at Chicago TRACON

Work includes, but is not limited to, the following: 1. Demolition as required to perform system upgrades. 2. Replacement of four (4) reinforced fiberglass, field erected cooling towers and associated piping systems and accessories, each with a capacity of 900 gallons per minute (GPM) . 3. Replacement of four (4) main facility chillers and associated pumps and accessories, each with a capacity of 300 tons of cooling. 4. Replacement of multiple HVAC equipment including air handling units, fan powered induction boxes, variable air volume boxes, constant volume boxes, unit heaters, exhaust fans, return fans, leak detection, circulation pumps, piping system valves, fittings and insulation. 5. Refurbishment and replacement of all components of five (5) air handling units serving the Operations Area. 6. Replacement and upgrade of the building automation system. 7. Replacement of building steam humidification system; and 8. Replacement of building electrical components including transfer switches, motor starters, variable frequency drives, light fixtures, emergency lighting, wiring devices;

Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment, Humidity Control Equipment, Mechanical Dehumidification Units.
Division 26 -	Electrical.