Field Controls VentCool 1.8 Installation Manual page 6

From below, cut out the drywall inside the framed box to create an opening to the attic. To know where to cut, use
a stud fi nder to locate the studs from below or drill pilot holes from above.
In this confi guration, a notch will need to be cut in the Grille in order to accomodate the center joist running
accross the opening. Procedures for this step are included in the INSTALLATION: GRILLE section of this manual. The
center joist across the opening will not signifi cantly disturb the fl ow of air to the fan.
FIGURE 2A FIGURE 2B
INSTALLATION: BACKDRAFT DAMPER
The next step in this fan's installation is to install the
backdraft damper within the "box" that was built in the
previous step. vious step.
However, before proceeding further, please make sure However, before proceeding further, please make sure
to pass the fan assembly and ductwork through the to pass the fan assembly and ductwork through the
opening created in the previous step and into the attic. opening created in the previous step and into the attic.
These items have been designed to fi t through this These items have been designed to fi t through this
opening. Since they m opening. Since they may not fi t through the attic's
crawl hole, they must be in the attic before proceeding
further.
Once in the attic, attach the backdraft damper
FIGURE 3
transition cone to the backdraft damper itself. Using the
12 provided ¼" phillips head damper screws, secure the
cone to the damper at each of the 12 brackets around
the circular rim of the damper and pilot holes in the
cone (shown in Figure 3 at right).
Lower the backdraft damper into the framed "box"
previously constructed, resting it on the joists using the
mounting brackets shown at right in Figure 4. Fasten the
damper box to the joists using wood screws through
the pilot holes on mounting brackets.
Then, return to the living space. Further secure the
damper box to the joists with wood screws through the
four pilot holes in the body of the damper box.
.
FIGURE 4
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P/N 78010007000 05/17 Rev B