This month’s Facility File will focus on the B2B June test for the renovation of an office building located on a major corporation’s U.S. headquarters campus. The existing HVAC system to be replaced is an antiquated hot water heating system serving baseboard radiation, unit heaters, and a rooftop HVAC unit.
This single-story building is scheduled to be renovated into an open office concept, and the HVAC system will have a direct outside air system (DOAS) with gas-fired heat and direct expansion cooling supply air to active chilled beams. Supply air to active chilled beams shall receive supplemental cooling via a 60-ton, air-cooled chiller providing 55ºF chilled water supply connections at each active chilled beam. Hot water radiant heat panels, located around the perimeter of the building, will be served by a 600-MBH condensing boiler providing 125º hot water supply to these panel.