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!
1
Upblast Centrifugal Roof Exhaust Fans
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 high winds
or seismic activity are 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 Electrical 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 CUE
Direct Drive
Model CUE is a direct drive upblast
centrifugal exhaust fan. These fans
are specifically designed for roof
mounted application. Performance
capabilities range up to 6,400
cfm (10,874 m
3
/hr) and up to
3 in. wg (747 Pa) of static pressure.
The maximum continuous operating
temperature for fan sizes 098-200 is
400°F (204°C) and for fan sizes 060-
095 is 160°F (71°C). CUE fans are
available in fourteen sizes with nominal wheel diameter
ranging from 9 to 20 inches (229to 508 mm) (060 - 200
unit sizes). Each fan shall bear a permanently affixed
manufacturers engraved metal nameplate containing the
model number and individual serial number.
Model CUBE
Belt Drive
Model CUBE is a belt drive upblast
centrifugal exhaust fan. These fans
are specifically designed for roof
mounted applications. Performance
capabilities range up to 30,000 cfm
(50,970 m
3
/hr) and up to 5.0 in. wg
(1240 Pa) of static pressure. The
maximum continuous operating tem-
perature is 400°F (204°C). CUBE fans
are available in fourteen sizes with
nominal wheel diameter ranging from
9 to 48 inches (229 to 1219 mm) (098 - 480 unit sizes).
Each fan shall bear a permanently affixed manufacturers
engraved metal nameplate containing the model num-
ber and individual serial number.
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.
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Document 471560
Upblast Centrifugal Roof Exhaust Fans
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