University of Nebraska Medical Center Chiller #11

Omaha, NE

  • Developed specifications for pre-purchase and installation of 3700-ton centrifugal water chiller, chilled water pump, condenser water pump, and associated architectural, structural, mechanical, and electrical systems
  • Additional pre-purchase and installation design for variable speed controller for an existing 2500-ton centrifugal water chiller
  • Project cost: $1.3 million
  • Project challenges included the existing building structure floor system was not capable of the anticipated structural loading for dead and live weights on the mezzanine level; special structural skids were designed to disperse the load to building columns for both moving the machinery and the final setting locations
  • Power and control system design modifications (4160V power supply and variable speed control and 480V controls for pumps, lighting, actuators, and other devices)
  • Support services for roof openings for large equipment
  • Monitoring system interfaced to existing plant control system