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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!
®
PN 458341
Model BDF
Belt Drive Duct Fan
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.
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.
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
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 m
3
/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)
(080 - 200 unit sizes). Each fan shall bear a permanently affixed
manufacture’s engraved metal nameplate containing the model
number and individual serial number.
