Before you begin
Select the proper location. See Mounting.
Procedure
- Use the mounting plate gasket as a template and mark the hole positions.
- Drill or punch the screw holes.
- Cut the center hole large enough for the paddle to pass through.
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Trim the paddle, if necessary. See Figure 1.
- The standard paddle fits into ducts of 3 in. × 8 in. (76 mm × 203 mm) minimum.
- You can trim the paddle for installation in ducts as small as 3 in. × 6 in. (76 mm × 152 mm).
Figure 1. Trimming the paddle, dimensions, in. [mm]