10
PNEG-1425
50" Galvanized Butterfly Fan
3. Installation
Framing and Positioning
1. Construct the opening frame to the correct size (55-1/4" H x 55-1/4" W) as shown below in
Figure 3A
. Remember, framing must be able to support the weight of the fan assembly. Ensure
the load bearing portion of the bottom sill is rigid and properly supported.
IMPORTANT:
When installing more than one fan, maintain a minimum of 10" between rough
openings to ensure clearance of cones outside of buildings. The cone largest
diameter is 59" and allowances must be made to keep the cones separated. If not
sure of sufficient clearance, contact your local distributor for more information.
(See Figure 3B.)
Figure 3A
Figure 3B
