Overview
GSA hired Prime Architects as design-build contractor to replace the cooling system in the Fargo Federal Building/Post Office. The work replaced a 375-ton centrifugal chiller and its pumps. The building stayed occupied and operating during the work.
Technical Scope
- Assessment/Pre-design: Evaluated all existing cooling-system components to maximize efficiency and reduce energy and water use.
- Mechanical: Demolished the 375-ton McQuay centrifugal chiller, condenser water pump and chilled water pump. New magnetic-bearing chiller on R-134a, water-cooled by three rooftop fiberglass AEC cooling towers.
- Controls: New chiller connected to the existing building automation system.
- Construction: Design, demolition and construction by Prime, with QC and communication plans for the occupied building.
Outcome
Design and construction completed in 2020.
Project Data:
- Client / agency: U.S. General Services Administration (GSA), Region 8
- Location: Federal Building/Post Office, Fargo, ND
- Size: 375-ton chiller replacement
- Construction cost: $804,281
- Completed: Design and construction 2020
- Project type: Infrastructure (HVAC replacement)
- Delivery / contract: Design-build
- Facility condition: Occupied federal building, kept accessible and operating throughout
- Prime Architects role: Prime design-build contractor: planning, design, demolition, construction, project management, QC, inspection and cost control
Relevant If Your Project Involves:
- Chiller replacement
- GSA design-build
- Magnetic-bearing chillers
- Occupied federal building
- Energy and water reduction