8’–24’ POWERFOIL
®
X2.0 & POWERFOIL
®
X2.0PLUS FANS
11
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8’–24’ POWERFOIL
®
X2.0 & POWERFOIL
®
X2.0PLUS FANS
Mounting Method: 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
or otherwise specified in these installation instructions.
CAUTION: It is not recommended to mount a Big Ass Fan to a fabricated I-beam. The I-beam on which the fan will mount
must be part of the existing building structure. Do not direct mount the fan to an I-beam.
CAUTION: Install the spacers only if the thickness of the I-beam flange exceeds 3/8” (1 cm). The mounting holes on the
spacer are closer to one edge than the other. Make sure this edge of the spacer is facing the I-beam.
Before beginning installation, confirm that you have the appropriate mount for your roof pitch.
Attach upper yoke (to I-beam)
Measure the flange width of the I-beam from which the fan will be hung. Select the upper yoke mounting holes that match the flange
width of the I-beam.
Secure the upper yoke to the I-beam with the Upper Yoke Hardware as shown. Tighten the bolts to
40 ft·lb (54.2 N·m)
using a torque
wrench and 3/4” socket.
Proceed to “Hanging the Fan” (p. 18).
Upper Yoke Hardware (BAF-Supplied):
a. (4) 1/2-13 x 2” GR 8 Bolt
b. (8) 1/2’’ Flat Washer
c. (4) 1/2-13 Nylock Nut
d. (2) Beam Clip
e. (2) Spacer
Big Ass Fans can only be hung from an I-beam or angle irons. See the following page for angle iron mounting instructions.
Consult a structural engineer for installation methods not covered in this manual.
Small Upper Yoke
13-3/4’’ (45.7 cm) x 9-5/8” (24.4 cm)
I-beam
flange width
Upper yoke
mounting holes
5” (12.7 cm) to
6-5/8” (16.8 cm)
Inner holes
>6-5/8” (16.8 cm) to
8 1/4” (21 cm)
Middle holes
>8-1/4”(21 cm) to
9-7/8”(25 cm)
Outer holes
Large Upper Yoke
18-1/2’’ (57.7 cm) x 9-5/8” (24.4 cm)
I-beam
flange width
Upper yoke
mounting holes
9-7/8” (25 cm) to
11-3/8” (28.9 cm)
Inner holes
>11-3/8” (28.9 cm) to
13” (33 cm)
Middle holes
>13” (33 cm) to
14-5/8” (37.1 cm)
Outer holes
Upper Yoke
(top view)
outer hole
middle hole
inner hole
outer hole
middle hole
inner hole
Upper Yoke
(top view)
outer holes
inner holes
middle holes
Side View
a
b
c
b
d
e
Note: Ensure the spacers are oriented as shown above.
Spacers are only used if
the beam flange exceeds
3/8” (1 cm).
