Instructions / Assembly
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2.4 INSTALLING THE RM WHF-4.0-DG2
Usethefollowinginstructionstonishtheinstallationofyouraccessorykit.
These instructions are for installing the RM WHF-4.0 with (2) 16” x 16” damper grilles.
1. Using a stud nder, nd and measure your ceiling joists and determine the location for your
damper grilles. Make sure the fan is equally centered between the two damper grille locations.
Make sure the damper grilles are installed in the same joist bay as the fan.
2. When you have chosen your exact spot, place the provided template on the spot and make sure
that you have at least 2 inches of clearance all around it. While holding the template in place, mark
its outline with a pencil. (See Figure 2.4A)
3. Using a drywall saw or similar device, cut out the hole in the ceiling. (See Figure 2.4B)
IMPORTANT: If there is venting in the cavity that the fan and grilles are being installed in, you
will need to seal off the side next to the damper grilles creating an air tight cavity. If installing
on a sloped ceiling, be sure the dampers are installed so they open from the bottom side of
the slope so gravity will close the dampers when the fan is turned off. If installed incorrectly,
the dampers will not properly close.
4. Remove the damper grille and screws from its packaging. Place the grille in the ceiling cutout.
Install the grille with the white screws provided by screwing through the drywall. (See Figure 2.4C)
5. Repeat steps 2 through 4 for the second damper grille.
Figure 2.4A Figure 2.4B Figure 2.4C
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2.5 INSTALLING THE RM WHF-4.0-PL
Use the following instructions to nish the installation of your accessory kit.
These instructions are for installing the RM WHF-4.0 with Plenum Box and 22” x 22” damper grille.
IMPORTANT: This installation requires roof rafters that are 24” on
center.
1. Once you have determined the location for both the fan and damper
grille, use the supplied square template to cut out your roong and
ceiling material for the supplied Plenum Flash Mount and
damper grille. (See Figure 2.5A)
Figure 2.5A