Are some HVAC systems more susceptible to IAQ complaints?
Well maintained constant volume HVAC systems generally have fewer complaints than Variable Air Volume (VAV) systems. The main reason is that a properly maintained constant volume system provides a constant airflow to the occupants and consistently provides outside for dilution purposes. VAV systems due their inherent design vary the airflow to match the actual load regardless of the number of occupants in the space. The problem can be corrected, contact us for more information.
