Exelon Solutions helped the district determine where improvements were needed for efficiency and reliability. McCauley Mechanical of Bridgeview, Ill., installed the equipment and provided additional engineering assistance.

Classroom cooling was one of the priorities of the recent upgrades. Three schools in the district received Trane Series Râ„¢ air-cooled helical rotary chillers, which are used to supply chilled water to the schools without air conditioning.