QuietCool RM WHF-4.0, Owner'S Manual

1-888-QUIETCOOL 

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8.  Using the included drywall screws, fasten the damper box 

to the drywall and the joist in the attic. 

(See Figure 2.2E)

NOTE: 

Remember that you must fasten the damper 

box to the ceiling joists AND drywall. The purpose of 

this is to make sure the damper box stays in place when 

you are screwing in the grille. If you do not fasten the 

damper box to the drywall, the damper box will not stay 

in place when attempting to screw in the grille. (See 

Figure 2.2F)

9.  Remove the removable ceiling grille and screws from its 

packaging. Center the grille over the damper box. Install 

the grille with the white screws provided by screwing 

through the drywall into the flange of the damper box. 

(See 

Figure 2.2G) 

NOTE: 

To remove grille core for cleaning, use the 

provided grille removal tool in the corners of the grille 

core. When removing the grille, make sure to hold the 

core in place so it does not fall. When ready to put your 

grille core back in place, simply push it right into place, 

and it will snap in tight.

2.3  INSTALLING THE RM WHF-4.0-DG1

Use the following instructions to finish the installation of your accessory kit.

  These instructions are for installing the RM WHF-4.0 with 22” x 22”damper grille.

  IMPORTANT:

 The RM WHF-4.0-DG1 will only fit 24” on center ceiling joists.

1.  Using a stud finder, find and measure your ceiling joists and determine the location for your damper 

grille. Make sure the damper grille is 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 2.3A)

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

(See Figure 2.3B)

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 2.3C)

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Figure 2.2E

Figure 2.2F

Figure 2.2G