Installation Guide

BIG ASS FAN 4900

Mounting Structure: I-Beam

WARNING: The fan should not be installed unless the structure on which the fan is to be mounted is of sound

construction, undamaged, and capable of supporting the loads of the fan and its method of mounting. A structural

engineer should verify that the structure is adequate prior to fan installation. Verifying the stability of the mounting

structure is the sole responsibility of the customer and/or end user, and Big Ass Fans hereby expressly disclaims any

liability arising therefrom, or arising from the use of any materials or hardware other than those supplied by Big Ass Fans

RURWKHUZLVHVSHFL¿HGLQWKHVHLQVWDOODWLRQLQVWUXFWLRQV

CAUTION: It is not recommended to mount a Big Ass Fan to a fabricated I-beam. Do not direct mount the fan to an I-beam.

CAUTION: The I-beam on which the fan will mount must be part of the existing building structure.

&$87,21,QVWDOOWKHVSDFHUVRQO\LIWKHWKLFNQHVVRIWKH,EHDPÀDQJHH[FHHGV´FP7KHPRXQWLQJKROHVRQWKH

spacer are closer to one edge than the other. Make sure this edge of the spacer is facing the I-beam.

WARNING: Ensure there are no persons below the fan unit during installation!

1. Measure I-beam width

0HDVXUHWKHÀDQJHZLGWKRIWKH,EHDPIURPZKLFKWKHIDQZLOOEHKXQJ6HOHFWWKHXSSHU\RNHPRXQWLQJKROHVWKDWPDWFKWKHÀDQJH

width of the I-beam.

Big Ass Fans can only be hung from an I-beam or bar joists. See page 9 for bar joist mounting instructions. Consult a

structural engineer for installation methods not covered in this manual.

Upper Yoke

13-3/4’’ (349 mm) x 10” (258 mm)

I-beam

ÀDQJHZLGWK

Upper yoke

mounting holes

5” (127 mm) to

6-5/8” (168 mm)

Inner holes

>6-5/8” (168 mm) to

8-1/4” (210 mm)

Middle holes

>8-1/4”(210 mm) to

9-7/8”(250 mm)

2XWHUKROHV

outer holes

middle holes

inner holes

Upper Yoke

(top view)