EXCEPTION: | Demand control ventilation is not required for systems and spaces as follows: |
1. Systems with energy recovery complying with Section C403.7.6.1 or C403.3.5.1. This exception is not available for space types located within the "inclusions" column of Groups A-1 and A-3 occupancy classifications of Table C403.3.5. | |
2. Multiple-zone systems without direct digital control of individual zones communicating with a central control panel. | |
3. System with a design outdoor airflow less than 750 cfm (354 L/s). | |
4. Spaces where the supply airflow rate minus any makeup or outgoing transfer air requirement is less than 1,200 cfm (566 L/s). | |
5. Ventilation provided for process loads only. | |
6. Spaces with one of the following occupancy categories (as defined by the International Mechanical Code): Correctional cells, daycare sickrooms, science labs, barbers, beauty and nail salons, and bowling alley seating. |