Product Manual

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3. Attach angle iron brackets (to concrete)
Big Ass Fans does not supply anchor bolts. Select mounting hardware
that is of sucient strength to support the weight of the fan. Big Ass Fans
recommends using (4) 1/4” Dia. Hilti Kwik Bolt 3 Mechanical Anchors with
a minimum embedment depth of 1-1/8”; however, you must consult a
structural engineer to determine the best method of attachment.
Align the angle iron brackets so that the center holes are concentric.
Attach the angle iron brackets to the structure with the recommended
anchors or anchors of equal strength.
3.5”
1.4 cm
4”
1.6 cm
2. Prepare concrete structure
CAUTION: Before drilling, ensure the concrete structure adheres to the guidelines listed on the previous
page! Consult a structural engineer to determine the best
method for mounting your fan.
Drill four mounting holes in the concrete structure according to
the anchor manufacturer’s specifications. Ensure the brackets are
aligned before drilling.
4” (1.6 cm)
3.5
1.4 (cm)
1. Prepare angle iron brackets
All hardware, including angle irons, is installer-supplied. Select
mounting hardware that is of sucient strength to support
the weight of the fan. Big Ass Fans recommends using (4)
1/4” Dia. Hilti Kwik Bolt 3 Mechanical Anchor with a minimum
embedment depth of 1-1/8” to secure the angle iron to the
concrete; however, you must consult a structural engineer to
determine the best method of attachment.
Cut two 3.5” (89 mm) x 3.5” (89 mm) x 0.25” (6.4 mm) angle iron
pieces to 6.5” (165 mm) in length. In the center of one flange of
the bracket, drill a Ø1” (25.4 mm) hole. On the opposite flange,
drill two Ø0.31” (7.8 mm) holes exactly 1.5” (38 mm) from the
edges. Repeat this on the other angle iron bracket.
3.25”
8.3 cm
3.5”
(8.9 cm)
1.5”
(3.8 cm)
1.5”
(3.8 cm)
1.5”
(3.8 cm)
6.5” (16.5 cm)
Ø 0.31”
(0.8 cm)
Ø 1” (2.5 cm)