Installation Guide

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10. Remove 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.

NOTE: Some ceiling surfaces are uneven and may

cause a small gap to be present. This can easily

be caulked later if excessive.

11. Return to the attic. Using the nylon straps and the

long wood screws provided, support the duct to the

framing. This will stabilize the entire assembly. Replace

any insulation that was removed. The installation of

the fan is now complete

NOTE: Local building codes and standards must

be adhered to in the installation of this unit.

AVOID BACK DRAFTS: Care should be taken to avoid back drafting combustion appliances

that are installed in the conditioned space. Whole house fans are capable of pulling large

quantities of air, from the home, particularly if not enough windows are open. This could

easily back draft gas appliances located inside your home. Take care if you have gas

appliances installed inside of your home.

2.2 Installing Vertical Adapter (vertical adapter sold seperately)

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.

Vertical Adapter Video:

Watch the video by

scanning the QR

code or visit www.

QuietCoolSystems.com/

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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.