Instructions / Assembly

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2.2 INSTALLING THE RM WHF-4.0-DB

Use the following instructions to nish the installation

of your accessory kit.

These instructions are for installing the RM WHF-4.0

with damper box, duct,and grille

1. Using the duct clasp, connect the duct to your fan unit.

2. Determine the location for your damper box. Ensure that the

duct will t with an adequate bend between the fan unit and

damper box.

3. Go up into the attic to mark the exact location for the

damper box. Take the cardboard cutout template and a small

screwdriver with you. Make sure the template ts between

the framing.

4. When you have chosen your exact spot, place the provided

template on the spot and mark it at each corner by pushing

the screwdriver through at each corner to make a hole so that

you can nd it from below. (See Figure 2.2A & B)

5. From below, place the cutout template on the ceiling, making

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 2.2C)

6. Using a drywall saw or similar device, cut out the hole in

the ceiling. (See Figure 2.2D)

7. Go back into the attic and set the damper box over the hole

in the ceiling. Using the duct clasp, connect the duct to the

damper box. Make sure there are no kinks in the ducting.

NOTE: The QuietCool Damper Box includes removable

anges in the case that you are installing the damper box between studs that are exactly

16” on center. To remove the anges, simply take a screwdriver and pry between the ange

surface and the damper box. Do this along the entire edge of the ange and it will pop off.

NOTE: If installing 24” on center, remove one of the longer side anges and position that side

of the damper box against one of the joists.

NOTE: The damper box ange is designed to sit on the backside of the drywall, inside the

attic. Do not attempt to install the damper box with the anges on the outer side of the

drywall in the home.

Figure 2.2D

Figure 2.2C

Figure 2.2B

Figure 2.2A