Madison Marquette @ The Wharf, Washington, D.C.

Engineering firm: GHT Limited
2019 MEP Giants rank: 86
Project: Madison Marquette @ The Wharf
Location: Washington, D.C., U.S.
Building type: Office building
Project type: Existing building retrofit
Engineering services: Automation, controls; electrical, power; HVAC, mechanical; plumbing, piping
Project timeline: November 2017 to December 2018
MEP/FP budget: $47,000
Challenges:
Madison Marquette required the relocation of existing Dedicated Outdoor Air Systems (DOAS) terminal units away from sound-sensitive areas. New DOAS terminal units were also required as part of the project scope.
Madison Marquette Executive Hallway. Source: Eric Laignel Photography[/caption]
Solutions:
GHT designed and executed the relocation of the units without impacting ceilings or the intended architectural design. Our team also specified thermostat locations for each terminal unit, provided CO2Â sensors in all conference rooms, huddle rooms, the cafe and in the pantry. The CO2Â sensors are tied into the building automation system (BAS) and provide demand-controlled ventilation control.