Where To Install Your Fan; Mounting Guidelines; Clearance Guidelines - BIG ASS FANS 4900 Installation Manual

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Before installation, make sure the building structure and fan location meet the following requirements.

The standard mount included with this fan allows the fan to be hung from angle irons mounted to bar joists

or from an I-beam. Do not mount the fan to a single purlin, truss, or bar joist. Consult a structural engineer

for mounting methods not covered in this manual.

Big Ass Fans does not recommend mounting the fan to a fabricated I-beam. Fans mounted to fabricated

I-beams, which are common in steel buildings, could cause the beam to flex and the fan to move

significantly during operation.

The fan must be installed so that it hangs vertically and horizontally level from the mounting structure.

If your fan application does not meet these requirements, contact Customer Service to discuss alternative

installations or other fan options.

General clearance

The fan must be installed so that it is at least 10 ft (3 m) above the finished floor.

Multiple fans must be spaced at a center-to-center distance that is no less than 2.5x the fan diameter.

All fan parts must be ≥ 2 ft (610 mm) from all obstructions. The fan installation area must be free of

obstructions such as lights, cables, sprinklers, or other building structure components.

If the fan is mounted at the same level or higher than an HVAC diffuser, the winglets must be at a distance

that is at least 1x the measure of the fan's diameter. If the fan is mounted below an HVAC diffuser, the

winglets must be at a distance that is at least 2x the measure of the fan's diameter.

See the manufacturer's requirements for the minimum clearance to combustibles.

Ceiling clearance

The fan must be installed at the distance listed below according to your fan size. The distance from the ceiling

should be measured from the top of the winglets to the ceiling.

Fan Diameter

14 ft (4.3 m)

WHERE TO INSTALL YOUR FAN

Distance from Ceiling

5 ft (1.5 m)

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