Why is a minimum airflow setpoint important in VAV systems?

Why is a minimum airflow setpoint important in VAV systems?

• A. It guarantees a baseline airflow to meet ventilation codes and occupant comfort, even when zones call for little or no cooling/heating.
• B. It is used solely for energy savings and can be ignored for codes.
• C. It determines the maximum allowable CFM for the system.
• D. It is only relevant during spring when outdoor conditions are mild.

Answer: (A)