Evaluating the effectiveness of indoor air quality monitoring and/or demand-controlled ventilation technologies on an entire building—much less an entire campus—can be challenging due to the ever-changing environment, both inside and out. The Grand Valley State University team studied the impact of the AntrumX technology on ventilation energy alone, examining AHU-1, which serves Henry Hall and is connected to the School of Computing at GVSU. Henry Hall is ventilated using a VAV system. Therefore, the supply fan on AHU-1 is equipped with a variable frequency drive (VFD). The GVSU team knew integrating AntrumX with the BAS would allow them to optimize ventilation and take advantage of energy-saving opportunities by slowing the speed of the fan and not over-ventilating rooms.

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