Centrifugal Roof Ventilator, Upblast, Direct Drive
The ATD roof exhauster is designed for roof mounted exhaust of relatively clean air for applications that require the exhausted air to be moved up and away from the building and where re-entry into the building supply air is possible. The ATD 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)
- 8.38 to 18.25 inches (215 mm to 465 mm)
- Airflow to 3,865 CFM (6,600 m3/hour)
- Static pressure to 1.5 inches w.g. (370 Pa)