2B. Fasten Brackets (To Floor Joists); 2C. Fasten Brackets (To Ceiling Joists) - BIG ASS FANS Isis Guide D'installation

Isis
®
15
Mounting Structure: Wood Frame (cont.)

2b. Fasten brackets (to floor joists)

Note: This method should be used when the tops of the joists are inaccessible.
Fasten the brackets to the mounting points on the floor joists using the Wood Frame Mounting Hardware as shown. Torque to 25 ft·lb
(33.9 N·m). The brackets should be facing inward and be mounted flush with the tops of the joists or in the centers of the joists. Note:
Ensure the brackets are positioned so the fan will not interfere if the ceiling section is replaced.
Using a level and carpenter's square, ensure the mounting brackets are level and the opposing holes are concentric.
Wood Frame Mounting Hardware (BAF-Supplied):
a. (8) 5/16"-18 x 2-1/2" Bolt
b. (16) 5/16" Flat Washer
c. (8) 5/16"-18 Nylock Nut
c
b
b
a

2c. Fasten brackets (to ceiling joists)

Fasten the brackets to the mounting points on the ceiling joists using the Wood Frame Mounting Hardware as shown. Torque to 25 ft·lb
(33.9 N·m). The tops of the brackets should be facing outward and flush with the tops of the beams.
Using a level and carpenter's square, ensure the mounting brackets are level and the opposing holes are concentric.
Wood Frame Mounting Hardware (BAF-Supplied):
a. (8) 5/16"-18 x 2-1/2" Bolt
b. (16) 5/16" Flat Washer
c. (8) 5/16"-18 Nylock Nut
a
b
b
c
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