Chilled Water Infrastructure
The chilled water infrastructure project began by implementing a process for updating chilled water flow diagrams and schematics. McKim & Creed surveyed existing chilled water plants, secondary and tertiary pumps and distribution systems in eight hospital buildings. Additionally, the design team provided engineering services to upgrade the secondary chilled water pump speed/staging controls in the chiller plant, increased the capacity of secondary chilled water loops (onsite and in the hospitals) and upgraded the tertiary chilled water bridge piping controls.
McKim & Creed replaced, relocated and provided fire-rated assembly modifications for fire dampers, smoke dampers and combination fire-smoke dampers and related utilities. The project team manually verified the proper installation of the dampers (meeting all pertinent codes) and identified ductwork systems missing fire/smoke dampers. Additionally, McKim & Creed ensured that all hospital walls were sealed in accordance with UL protection details, providing wall assembly modifications as needed.
Waste Anesthesia Gas Disposal (WAGD) System
McKim & Creed was responsible for assessing the WAGD connections in place across the UNC Hospital main campus. A WAGD system pulls waste anesthetic gas out of spaces where inhalation anesthetic agents are administered and pumps it outside. McKim & Creed’s design team determined locations in need of upgrades, retrofits or new connections, and evaluated alternatives for spaces with mobile anesthesia carts. McKim & Creed also provided an upgrade implementation plan for the campus WAGD system as a result of the campus assessment.