PN 458341
® 
Model BDF
Belt Drive Duct Fan
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage!
Model BDF
Belt Drive Duct Fan
Model BDF is a belt drive duct supply, exhaust or return air fan. These fans are specifically designed for inline applications. Performance capabilities range up to 15,000 cfm (25,500 m3/hr) and up to 3.0 in. wg (747 Pa) of static pressure. BDF fans are available in seven sizes with nominal wheel diameter ranging from 8 to 20 inches (203 to 508 mm)
General Safety Information
Only qualified personnel should install this fan. Personnel should have a clear understanding of these instructions and should be aware of general safety precautions. Improper installation can result in electric shock, possible injury due to coming in contact with moving parts, as well as other potential hazards. Other considerations may be required if seismic activity is present. If more information is needed, contact a licensed professional engineer before moving forward.
DANGER
Always disconnect, lock and tag power source before installing or servicing. Failure to disconnect power source can result in fire, shock or serious injury.
CAUTION
When servicing the fan, motor may be hot enough to cause pain or injury. Allow motor to cool before servicing.
CAUTION
Precaution should be taken in explosive atmospheres.
1.Follow all local electrical and safety codes, as well as the National Electrical Code (NEC) and the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electric Code (CEC) in Canada.
2.The rotation of the wheel is critical. It must be free to rotate without striking or rubbing any stationary objects.
3.Motor must be securely and adequately grounded.
4.Do not spin fan wheel faster than max cataloged fan RPM. Adjustments to fan speed significantly effects motor load. If the fan RPM is changed, the motor current should be checked to make sure it is not exceeding the motor nameplate amps.
5.Do not allow the power cable to kink or come in contact with oil, grease, hot surfaces
or chemicals. Replace cord immediately if damaged.
6.Verify that the power source is compatible with the equipment.
7.Never open access doors to a duct while the fan is running.
Model BDF • Belt Drive Duct Fan
1