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Children’s Hospital of The King’s Daughters Peri-Ops Infrastructure Upgrades, Norfolk, Virginia
This project was an infrastructure upgrade with multiple phases of construction for the Children’s Hospital of the King’s Daughter’s (CHKD) located in Norfolk, VA. The first two phases of the project were bid at one time to include: Phase One – upgrade the facility’s Surgical Suite HVAC system; and Phase Two – upgrades to the facility’s emergency power system. All phases of this project were to be completed while the facility remained operational, performing life-saving services. The first two phases began, and construction was completed during a worldwide pandemic. The third phase was a critical system resiliency improvement project for critical imaging equipment in the hospital. The first two phases were initially bid to contractors while the third phase was designed later, then added to the initial contract as a change order.
Phase One of the project included the Surgical Suite HVAC system replacement of both air handlers, all associated ductwork, supply and return ductwork, and updated HVAC controls. The original facility operated off a constant volume type system, and part of the upgrades was to change to a variable air volume (VAV) system with additional capacity to adjust as future hospital guidelines required. The new VAV system would be more energy efficient and provide a more active management control system of space pressures. All HVAC systems included levels of redundancy and efficiency.
Phase Two of this project included the emergency power system upgrades to increase the facility’s capacity and upgrade the emergency power switchgear. The existing facility had two 900 KW diesel generator sets located inside the facility in a dedicated room, which were replaced by two 1250 KW diesel generator sets in the same room. PACE and the general contractor were able to place the new equipment in the same room and continue phased construction to ensure the facility was never without redundant life-saving support. New fuel treatment/management equipment was added to the existing facility’s fuel tank.
Phase Three of the infrastructure upgrade was to add uninterruptable power service (UPS) to all critical imaging equipment and isolate the equipment cooling from the building’s chilled water system. PACE designed a UPS room with a computer room air conditioning (CRAC) unit and provided space for five new UPSs for the imagining equipment. PACE also designed a dedicated chilled water system for the imagining equipment. The mechanical system was intended to be completely independent of the building’s chilled water system but was designed to allow for the building’s system to work as back-up for maintenance or shutdowns. The approximate chiller tonnage is 60 tons.



