Schaefer B2274991, B2274989 User Manual
57" Fiberglass Exhaust Fan with Cone
Operators Manual
Fiberglass Exhaust Fan
IMPORTANT: READ AND SAVE THESE INSTRUCTIONS
Read all instructions carefully before attempting to assemble, install, operate or service the product described.
Failure to comply with instructions could result in personal injury and/or property damage.
Using this product for any other purpose than it was intended, or not within the operating specifications in this
manual will void the warranty and may cause damage to the fan or serious injury to personnel.
WARNING - TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK:
!
• Do not expose fan to water or rain.
• The power source must conform to the electrical requirements of the fan. Consult your local electrician before wiring and
follow all national, state, and local electrical codes.
• Disconnect all power before performing maintenance.
• DO NOT use a variable speed control device, unless your fan has been equipped with a VFD-compatible motor.
GENERAL SAFETY
• This fan is intended for general use only. Do not use near hazardous or explosive materials or vapors.
• Never insert fingers or any other objects into the fan when in operation.
• Use of an OSHA complying guard if within seven feet of floor is recommended.
• Use of a guard, shutter or hardware cloth if above seven feet of floor is recommended.
• Carefully read all safety messages in this manual and on your equipment safety decals.
Follow recommended precautions and safe operating practices.
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SCFA-408
KEEP THIS MANUAL IN A CLEAN, DRY PLACE FOR FUTURE REFERENCE.
All information, illustrations and specifications in this manual are based on the latest product information available at the time of
printing. Product specifications subject to change. We reserve the right to make changes at any time without notice.
If you need replacement parts, please contact your dealer. Take special care when ordering replacement blades, pulleys,
motors and belts to ensure you get the proper configuration for your fan. If you do not have that information, please call
Schaefer Ventilation Equipment at 800-779-3267 for assistance.
SAFETY INFORMATION
Warning and danger decals have been placed on the equipment to warn of potentially
dangerous situations. Care should be taken to keep this information intact and easy to
read at all times. Replace missing or damaged safety decals immediately.
Safety decal locations
IMPORTANT!
Schaefer Ventilation Equipment strongly recommends that a good alarm system be
installed in confinement buildings to warn of power failure and high temperature.
Schaefer also recommends that an alternate power source be available for
confinement buildings in case of power failure.
INSTALLATION INFORMATION
Schaefer 57” exhaust fans are shipped fully assembled* and only need to be fastened to the wall framework with suitable
fasteners for your facility (not supplied). Fasteners should be grade 2 or better, and corrosion resistant. *Discharge cone and
guard are shipped loose for on-site installation.
• Build wall framing to the required wall opening dimensions and specifications illustrated below.
• Framing methods may vary due to building design or local codes.
• It is the customers responsibility to install the fan correctly and verify proper operation.
• If blade clearance is less than specified, proper corrections must be made before running the fan.
• Failure to follow these guidelines may affect performance, cause potential damage, and will void the warranty.
The following conditions must be avoided to prevent deforming the fan housing.
• Undersized framework rough-in opening
• Out-of-square framework rough-in opening
• Out-of-plane framework mounting surface
• Fan housing resting on framework
Rough-In Opening Dimensions
Standard 2x6 wall construction
Rough-in framing tolerance: +1/4” / -0”
Frame must be square within 1/4” in the
vertical and horizontal directions shown.
Check for square: the difference between
diagonal measurements must be 3/8” or less.
Planar Requirements
The framework mounting surfaces should be flat within 1/8” across all
directions as shown. If the framework is out of plane, use appropriate
shims or furring strips to correct the issue.
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Correct posion Wrong posion
Center fan housing in opening
Center the fan housing in the opening left–right and
up-down before fastening. Use shim boards during the
installation process to maintain fan position.
Mounting Flange contact detail
Typical section view of all four sides with proper clearance.
Only the fan mounting flange should be in contact with the
framework. The fan housing should not be resting on the
bottom frame board.
Temporary shims for centering fan
Use 1/2” thick shim boards in both lower corners during
fan installation. Remove these boards after the fan is
permanently fastened to framework.
Boards that are wider than the frame are
easier to grab hold of and remove.
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