Demand Control Ventilation (DCV) is a mandatory measure in the ASHRAE 90.1 Standards in high density spaces. Zones that meet these criteria must be designated as having DCV controls to regulate the amount of outside air to the zone.
At the Zone level of the Building Tree, Mechanical tab, check the box for DCV, or at the General tab, select a different occupancy type that does not require the use of DCV.
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