page 8 of 16
INSTALLATION: FAN & DUCT
The next step in this fan’s installation is to hang the fan assembly from the attic’s rafters, and to attach it to the
backdraft damper using the provided ductwork. Figure 8 below shows the fan assembly, ductwork, and backdraft
damper as they should appear when fully installed.
FIGURE 8
Attach 4 lengths of the provided chain to the the attic’s rafters
at four locations using wood screws (
NOT provided
) screwed
through a chain link. Measure and cut the chain to specifi c
lengths desired for installation.
Attach the 4 provided S-hooks to 4 of the D-rings attached to the
fan housing. Hang the fan assembly from the rafters using these
S-hooks and the 4 lengths of chain just installed.
When hanging the fan assembly, adhere to the following guid-
lines:
• Do not hang the fan using fewer than 4 lengths of chains or
eye bolts—all four attachment points are necessary to sup-
port the fan’s weight and to eliminate any swaying motion.
• Ensure that the fan is as level as possible.
• Keep the area in front of the fan as unobstructed as possible:
At the least, the nearest object obstructing the path of fan’s
exhaust airfl ow can be no closer than 24” to the face of the fan.
Next, slide one end of the fl exible ductwork over the backdraft
damper’s transition cone and secure it thereto using the hooks
on the ductwork’s collar, and the latches on the cone, as shown at
right in Figure 9.
If needed, the transition collar can be rotated to better align the
hooks and latches. Simply unscrew the screws securing the cone to
the damper (highlighted in Figure 3 on the previous page), rotate
the cone, and reattach it to the damper using the screws.
FIGURE 9
.
P/N 78010007000 05/17 Rev B
