Installation Guide
11
WWW.BIGASSFANS.COM ©2013 DELTA T CORP. ALL RIGHTS RESERVED
BIG ASS FAN 4900
4a. Fasten single angle irons to roof structure mounting points
Fasten the angle irons to the roof structure mounting points at each end with customer-supplied Grade 8 hardware as shown. If you
are mounting the fan directly to the angle irons, do not tighten the hardware until the main fan unit has been mounted to the angle
irons (step 5a). If your fan installation includes yokes and an extension tube, do not tighten the hardware until the upper yoke has been
mounted to the angle irons (step 5b). Big Ass Fans recommends orienting the angle irons so that the horizontal legs are facing each
other. Refer to the illustration below.
Proceed to step 5.
Grade 8 Hardware (Customer-Supplied):
a. (4) 1/2-13 Bolt
b. (8) 1/2” Washer
c. (4) 3” Square Washer (BAF-Supplied; see diagram)
d. (4) 1/2-13 Nylock Nut
b
a
c
b
d
Mounting Structure: Bar Joists (cont.)
If the angle iron span is greater than 8 ft (2.4 m) and requires double angle irons, proceed to step 4b.
Note: Ensure the angle irons are oriented as shown.
9HUWLFDOZDOOVDUH
to the outside.
Square Washer
Thickness:
1/4” (6 mm)
3”
(7.6 cm)
3”
(7.6 cm)
Ø 9/16”
(1.4 cm)