Framing and Positioning
Before You Begin
Make sure that you have enough rough opening and there is enough space so that the fan flanges do not
overlap.
1. Construct the frame opening with a maximum height 60–1/2 in. x maximum width 58–1/2 in. and
minimum height 56–25/32 in. x minimum width 54–5/8 in.
NOTE:
Remember that the 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.
2. Plan the layout and spacing of fans with cones; spacing fans too close together will cause
interference with the cones.
Figure 3-1
Minimum 54 in. Framed rough opening
NOTE:
3/4 in. has been added for fan clearance.
18
PNEG-2054
54" Galvanized Butterfly Panel Fan