8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
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WWW.BIGASSFANS.COM ©2010 DELTA T CORP. DBA BIG ASS FAN ALL RIGHTS RESERVED
8’ - 24’ POWERFOILPLUS™, POWERFOIL™, & WICKERBILL FANS
5a. Attach Upper Yoke (to Angle Irons)
If you are mounting the fan motor frame directly to angle irons, proceed to step 5b.
Secure the upper yoke directly to the angle irons with the Beam Clip Hardware as shown. Consult the diagrams below for distances
between the angle irons.
CAUTION: The angle irons should be aligned with the outermost holes of the upper yoke.
Tighten the bolts to 98 ft·lb
f
(133 N·m) using a 3/4” socket with torque wrench.
CAUTION: After attaching the upper yoke to the angle irons, tighten all the bolts securing the angle irons to the roof structure
to 40 ft·lb
f
(54.2 N·m) using a 3/4” socket with torque wrench.
Proceed to “Hanging the Fan” (p. 18).
Beam Clip 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
Mounting Method 2: Angle Irons (cont.)
NOTE: Dashed lines represent angle irons.
Side View
a
b
c
b
