TMG constructed Phase I of the major mechanical and cooling tower modernization at the Air Route Traffic Control Center in Houston, Texas. The scope involved the installation of two new chilled water pumps, five new chilled water pump motors, three new vertical turbine (condenser) pumps, and five new cooling towers with internal belt-driven fan motors. Associated work included the construction of new substructure steel (dunnage), Evapco access platforms, and steel stairs to the Evapco access platforms. The temporary cooling tower yard included four towers and four pumps with drilled concrete piers.
The four new air handling units (AHUs) range from 1,000 CFM to 7,000 CFM. The six new Liebert CRAC units are 12,500 CFM each. Other scope included the installation of three new sand filters, two new exhaust fans; signal reference grid; interior lighting; access flooring; VCT, rubber floor tile, and cove base; doors, door frames, and door hardware; and fire alarm; as well as water and refrigerant leak detection systems.