Model VBO remote drive belt-drive upblast roof fans discharge hot, humid air out of the building. These fans operate reliably in the most hostile environments because the motor and drive are out of the air stream, and as such, protected from high temperatures and contaminated air.
The weather protecting dampers open automatically when the fan is started. The exhaust airstream holds the dampers open, while also preventing the entrance of rain or snow. When the motor power is cut, the dampers close to provide a complete weather seal. A rain runoff trough is located below the damper shafts to provide drainage to the outside resulting in weather-tight construction. The Model VBO is the perfect fan for high heat, heavy manufacturing facilities.
Moffitt also offers the Model VBO-HV for environments with even higher temperatures. It also works for buildings that are susceptible to heat and smoke. This powerful fan can help remove smoke and fume removal during a fire. These high volume, high velocity exhausters are the ideal choice for locations where reliable ventilation is required.
PRODUCT BENEFITS
- High-performance propeller for optimal efficiency.
- Powerful TEFC motor for trouble free operation.
- Corrosion resistant polyurethane coating.
- Dampers prevent rain, snow, and debris entry. Also prevent back drafts.
- Water drains through a rain runoff trough below the damper shafts.
- CEC-compliant models available for customers that need to meet California Energy Commission standards.
STANDARD FEATURES
- Heavy gauge galvanized steel wind band, beaded for additional strength.
- High performance propeller.
- Totally Enclosed Fan Cooled (TEFC) motor.
- Transmission options:
- Belt drive transmission with oil resistant, non-static type fan belts. Variable pitch (≤ 7.5 HP) adjustable for final system RPM.
- Direct drive transmission for simplified operation and maximum efficiency.
- Sturdy, all-welded motor frame.
- Butterfly steel dampers with magnetic damper latches and water runoff troughs for weather-tight operation.
- Deep spun venturi panel provides superior strength and higher efficiency.
- Polyurethane coated exterior.
OPTIONAL FEATURES
- Roof curbs.
- Curb adapter.
- Inner and outer guards.
- Disconnect switches.
- Custom finishes.
CERTIFICATION
- UL listed Power Ventilators
