roof ventilators


Centrifugal Roof Ventilator, Downblast, Direct Drive


The ACXD centrifugal roof ventilator is designed for roof mounted exhaust of relatively clean air in a wide variety of industrial and commercial applications. The ACXD features a high efficiency, non-overloading backward inclined centrifugal impeller precisely matched to a deep spun venturi. The impeller, motor and drive assembly are completely isolated from the fan supports by rubber isolators to reduce transmission of noise and vibration. The top cap also provides complete protection for the motor and drive assembly, while allowing quick access to these components without the need for tools.

Sizes (impeller diameters)

  • 12.7 to 19.8 inches (325 mm to 505 mm)


  • Airflow to 5,600 CFM (9,500 m3/hour)
  • Static pressure to 1 inch w.g. (250 Pa)

Installation Manual