University of Cincinnati Tangeman Center

Saving energy and improving pressure

20+% energy reduction in one year

Complex building with various uses
  • As one of the main congregation areas on campus, Tangeman University Center is a mixed-use building for public assembly, retail and food service
  • Originally built in 1937, upgrades, additions and renovations over the years had led to a complex system with a multitude of mechanical system types that all needed to work together
  • Needed to control building pressure throughout the facility
  • Needed to optimize the energy consumption of the facility’s equipment

Reprogrammed for efficiency
  • Pathian® provided project management, engineering, and commissioning services
  • Reprogrammed seven large AHUs to operate under Pathian’s patented control methods
  • Provided a new PXC/M DDC Controller/Ethernet – IP for each of the seven AHUs
  • Provided a BACnet – IP/Driver for the Client/Server for communication
  • Provided new pressure sensors, pressure switches, pneumatic control signal/transducers, minimum outside airflow stations, new building pressure sensors, and humidity sensors
  • Implemented Pathian Analytics software to track, evaluate and sustain optimal equipment performance

Saving energy and cost
  • Reduced energy usage by 20.6% from project start to post commissioning without COVID influences
  • Total project cost: $359,800
  • Project actual savings: $93,131 in electric, chilled water, steam
  • Simple Payback: 3.86 years

Other industries



Cincinnati, Ohio

Building Facts

University mixed-use building
Originally built in 1937 240,000 sf
Great Hall seating 888