Perimeter induction units with fan coil units serving interior.
There is a mechanical equipment room on the lower level of the building that houses the primary heating and cooling equipment for the building. There are three gas/oil-fired boilers totaling 1,350 horsepower providing heating for the building. There are six centrifugal chillers providing cooling as follows:
1–550 ton Carrier chiller
1–450 ton Trane chiller
1–250 ton Trane chiller
3–500 ton Trane chillers
During peak usage, two centrifugal chillers remain in standby.
The perimeter of the building is served by a two-pipe induction system, which is powered by four supply air fans and two return air fans. Fan coil units serve the interior areas with zone control for approximately every thousand square feet.
The building HVAC systems are controlled through an Automated Logic energy management system. This system regulates and controls all functions of the mechanical system, including optimum start, regular scheduling, return air monitoring for CO2, and control of outside air damper position. In addition, a Trane Chiller Plant Control System monitors and regulates chilled water production.