Chiller Repairs at Wright-Patterson Air Force Base

Chiller Repairs at Wright-Patterson Air Force Base: Repair the main chilled water system, which provides primary cooling for the Building 620 Area B complex. Replace the three 1100 Ton Refrigeration (TR) hybrid chillers and pumps with three 1,250 TR variable-flow chillers using low Global Warming Potential (GWP) substance with two remote booster pumps. Replace the three constant-flow condenser water pumps with three condenser water pumps with variable speed drives. Replace electrical for chiller and pump from their locations to the Motor Control Center (MCC). Provide common header for the chilled water pump system allowing different operational combinations of cooling towers with chillers. Replace chiller controls using a Chilled Manager Control System and complete testing, balancing, and commissioning. Replace the three damaged structural steel framed cooling towers and related system components. Repair damaged reinforced concrete basin walls and piers under the cooling towers. Repair various degraded components in the Chemical Treatment Building 618 Area B. The work will be phased as not all the chillers can be taken offline at once. - Construction: Replace three 1100 ton Chillers, chilled water pumps, condenser water pumps, and electrical supplies. Provide variable speed drives for Chiller and Condenser Pumps. Install new refrigerant monitoring system, chilled water manager system control panel, building management system integration and control panel, suction and discharge headers on the chiller pump, balancing valves, and centrifugal water separators in the chiller room. Install automated exhaust fan, updated water softening system, HVAC (heating, ventilating, and air conditioning) unit, make-up water piping, emergency eye wash station, and lightning protection in the chemical treatment building. Replace three cooling towers (above basins), three sluice gates, repair reinforced concrete basin wall/piers, and install new isolation valves, necessary upgraded electrical, and lightning protection in the cooling tower area.

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Heating, Ventilating, and Air Conditioning (HVAC), Packaged Water Chillers.