Instructions / Assembly
12
QUIETCOOLSYSTEMS.COM
3-2  Installing Vertical Adapter (vertical adapter models shown on page 8)
A vertical wall adapter allows a damper box to be installed in the wall instead of the ceiling. A vertical adapter 
is installed on the wall with the damper box mounted diagonally to the wall so the damper doors close 
properly when the fan is turned off.
NOTE: Measure the studs in your wall. If they are 16” 
on center, you will need to follow steps 1 through 4 
completely. If they are wider than 16” on center, you 
will only need to follow steps 1 & 4. 
NOTE: The damper box MUST be installed with the 
damper doors oriented vertically. If the damper box 
is mounted on the wall with the damper doors horizontally, the damper doors will not 
operate correctly.
1.  Note the T (TOP) side of the vertical adapter. Place the 
vertical adapter with the T side up onto the damper box 
with the side that has only two flanges, flush on the 
damper box.
2.  If you have studs spaced at 16” on center, you will need 
to remove certain flanges on the damper box and vertical 
adapter. Using a flat head screwdriver, remove the two side 
flanges on the vertical adapter. (See Figure 1)
3. Using a flat head screwdriver, remove the two side flanges on 
the damper box. Make sure that you are removing the flanges 
on the same side as the flanges you removed on the vertical 
adapter. (See Figure 2)
4.  Using the included black sharp screws, attach the vertical 
adapter to the damper box by screwing them together 
through the two remaining flanges. (See Figure 3)
5.  The vertical adapter is now installed. Go back to step 8 on 
page 10 and continue your installation. 
Vertical Adapter Video:
Watch the video by 
scanning the QR 
code or visit www.
QuietCoolSystems.com/
support
Figure 1
Figure 2
Figure 3










