The VariTrac Damper is one major piece of the overall VariTrac and Tracker changeover/bypass zoning system. The damper is a pressure dependent airflow damper that controls a zone in a building. Used in conjunction with the VariTrac Central Control Panel (CCP), the damper helps to give the building individual zone control with a constant volume rooftop unit.
A building with varying loads due to occupancy, time-of-day, or other special needs is a likely candidate for a changeover-bypass VAV system.