Field Controls VentCool 1.8 Installation Manual page 9

Gently bend the ductwork to a 90° angle and slide the free end
onto the fan cone and fasten it thereto using the self-tapping
metal screws on the ductwork's collar to the fan cone (as shown
at right in Figure 10)
Adhere to the following guidelines when attaching the ductwork
to the backdraft damper and fan cone:
• Make sure to maintain the full diameter of the ductwork
through the bend; this provides adequate airfl ow and helps
minimize noise.
• Avoid sharp bends in the ductwork or contact with metal
fi xtures, pipes, or conduits.
• The section of ductwork immediately before the fan should
be as straight as possible.
• The ductwork can be supported under the bend using extra
chain wrapped with a protective material (e.g. carpet)
Once the fan assembly is balanced and secure, use pliers to
close all of the S-hooks to ensure stability, and tape down all
unused D-rings to avoid excess rattling.
Lastly, use the provided foil tape to seal the joints between
the fan assembly and ductwork, the ductwork and the
transition cone, and the transition cone and backdraft damper.
INSTALLATION: GRILLE
The next step in this fan's installation is to mount the cube core grille over the interior opening in the ceiling
previously created. First, from the living area, use latex caulk to seal all wood-to-wood and wood-to-metal joints.
This ensures that all air drawn into the fan will be from within the living space.
Then, attach the grille to the joists using the 8 provided white head screws. We advise pre-drilling pilot holes for
these screws. If the home's framing is 16" O.C., use a dremel tool or hacksaw to cut two notches in the grille's fl ange
to accomodate the middle stud, Figure 11 below shows this notch.
page 9 of 16
FIGURE 10
FIGURE 11
P/N 78010007000 05/17 Rev B