Bremen High School is located in Midlothian, Illinois, approximately 20 miles south of Chicago. It is one of four high schools in Bremen High School District 228, serving 1,450 students from the villages of Midlothian, Posen, Markham, and Harvey, Illinois. The school includes classrooms, offices, a kitchen and cafeteria, an auditorium, basketball gymnasiums, a swimming pool, a football stadium/field, and a fieldhouse. Prior to the RCx project, Bremen High School had an Energy Star score of 67, indicating above-average energy efficiency.
Boiler hot water and air-cooled chilled water provide heating and cooling to the majority of the building. Perimeter spaces, mainly classrooms, are conditioned with univents, with air exhausted through four corridor exhaust fans. Nine constant volume air handling units (AHUs) serve the gyms, locker rooms, pool, and an office area. Several rooftop units (RTUs) provide additional conditioning:
- RTU-1, RTU-2, and RTU-3 serve the nurse’s office area, the main office, and the IMC presentation room, respectively.
- Four stand-alone RTUs provide supplemental cooling to the second-floor computer labs.
- Three additional RTUs serve the cafeteria.
- A variety of athletic and IMC offices have additional split system cooling.