Greenstone Construction replaced the existing steam boiler plant system (boiler, condensate return unit, steam heat exchanger, and steam heating coils) at the Lewis and Clark U.S. Army Reserve Center in Bismarck, ND. The new hydronic heating system consisted of three hydronic boilers, pumps, air separator, side stream filter, flow meter, valves, piping, direct digital controls, and appurtenances. The steam heating coils in the multizone air handling unit (AHU-1) and the makeup air handling unit serving the kitchen (MAU-1) were replaced with pumped hydronic heating coils, exhaust fans on the roof serviced, and the makeup air handling unit (HV-3) serving the Assembly Hall and Storage Room replaced with a new heating, ventilating unit (HVU-1) ducted as a MAU until a future project provides the necessary return duct to allow the unit to function as an HVU. This project included trades such as HVAC, Plumbing, Electrical, Controls, Insulation, Concrete, Asbestos Abatement, Testing and Balancing, and Commissioning while working for the US Army Corps of Engineers.
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