Manual 2100-498BPage 10 of 17WG3S Ventilation Airflow01002003004005006007000 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30Vent PositionVentilation Airflow (CFM)Stage #2OperationBlower Only& Stage #1OperationWG4S Ventilation Airflow01002003004005006007008009000 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30Vent PositionVentilation Airflow (CFM)Stage #2OperationStage #1OperationBlower Only