BIG ASS FANS 8'-24' Powerfoil X, Installation Manual

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8’ - 24’ POWERFOIL® X
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8’ - 24’ POWERFOIL® X
4b. Fasten Double Angle Irons to Roof Structure Mounting Points
CAUTION: Do not install the fan from a single purlin, truss, or bar joist.
CAUTION: The angle irons must be fastened to the roof structure at each end.
Fasten the angle irons to the roof structure mounting points at each end with customer-supplied Grade 8 hardware as shown.
CAUTION: The angle irons with fan mounting holes should be positioned on the inside, facing each other.
ATTENTION: Do not tighten the hardware until the upper yoke has been mounted to the angle irons.
Grade 8 Hardware (Customer-Supplied):
a. (8) 1/2-13 Bolt
b. (16) 1/2” Washers
c. (8) 3” Square Washer (BAF-Supplied; see diagram)
d. (8) 1/2” Nut
A
b
a
c
b
d
Mounting Method 2: Angle Irons (cont.)
3”
(7.6 cm)
3”
(7.6 cm)
Ø 9/16”
(1.4 cm)
Thickness:
1/4” (6 mm)
Square Washer