BIG ASS FANS Powerfoil 8 Plus, Installation Manual

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12’–24’ POWERFOIL ® 8, 12’–24’ POWERFOIL ® 8 PLUS
Preparing the work site
Before beginning installation, review the mechanical and electrical installation guidelines below.
Mechanical installation
‡ A 24-ft (7.3 m) Powerfoil ® 8 fan (largest model) weighs, at maximum, 415 lbs (188 kg). A suitable means for lifting the weight of the
fan, such as a scissor lift, and at least two installation personnel will be required.
‡
Big Ass
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in this guide. Do not mount the fan to single purlins, trusses, or bar joists. Consult a structural engineer for installation methods not
covered in this manual.
‡
The mounting structure must be able to withstand the torque forces generated by the fan. A 24-ft fan generates nearly 300 ft·lb
(406.7 N·m) of torque during operation.
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‡ If the fan’s extension tube is 4 ft (1.2 m) or longer or if the mounting structure requires it, the fan’s lateral movement must be secured
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‡
Adhere to the safety requirements in the table below when selecting the fan location.
Safety requirement Minimum distances
Clearance
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sprinklers, or other building structure. See the tables on p. 2 for recommended minimum ceiling
clearances.
Blade height •IWDERYHWKHIORRU
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illustration below.
Fan spacing 2.5x fan diameter, center-to-center
Radiant/IR heaters See the manufacturer’s requirements for the minimum clearance to combustibles.
Electrical installation
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‡ The installation of a Big Ass Fan must be in accordance with the National Electrical Code, ANSI/NFPA 70-2011, and all local codes.
‡
Refer to the Electrical Installation section in this manual for acceptable cable types, conduit, and other electrical requirements.
‡
Controller output/motor input leads cannot share a conduit with any other controller’s AC supply feed.
‡
If required, a local disconnect should be installed per NEC and all local codes.
‡ Each fan requires dedicated branch circuit protection.
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Pre-Installation (cont.)
Angle Iron I-Beam
HVAC
Diffuser
HVAC
Diffuser
If the fan is mounted at the same level
or higher than a diffuser, the winglets
must be at a distance that is at least 1x
the measure of the fan’s diameter.
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(24 ft)
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(48 ft)
24-ft diameter
24-ft diameter
If the fan is mounted below a diffuser,
the winglets must be at a distance that
is at least 2x the measure of the fan’s
diameter.