Design improvements to an outdated and inefficient central cooling and heating plant in a 16-story, 225,000-square-foot building in downtown Norfolk are expected to cut utility costs by almost 50 percent, with estimated savings of $90,000 per year.
Under a contract with Hourigan Construction, B&N worked closely with Warwick Mechanical Group, IES Commercial and Industrial, and CBRE to collaboratively design the improvements to the building’s central air handling units, chiller plant, boiler plant, and building automation system.
The new cooling plant is designed to provide lower chilled water and supply air temperatures to improve the cooling capacities of existing equipment. The design also will allow smaller equipment, ductwork, and piping to be used when designing future tenant improvements. Additionally, the central air handlers are now capable of supporting variable air volume (VAV) systems in the core areas of future tenant spaces which will provide enhanced zone control and save even more energy.
Using the Design Assist process, B&N partnered with the contracting team at the beginning of the design process which resulted in the delivery of a highly coordinated set of construction documents that minimized the potential for change orders and deviations from the construction schedule.