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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 back-
draft damper as they should appear when fully installed.
FIGURE 8
First, hang the fan by fastening the hanging strap attached to
the fan assembly to two of the attic’s rafters. Use at least 3 wood
screws (
NOT provided
) at any of pilot holes on each end of the
strap.
When hanging the fan assembly, adhere to the following guid-
lines:
• Both sides of the attached hanging strap are necessary to
support 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.
Attach the fan cone to the fan assembly for VentCool 3.5 & 4.9
models. The fasteners necessary to connect the fan cone to fan
housing are preinstalled in the fan housing. First, remove these
bolts. Then, slide the cone into the brackets on the fan assembly.
Align each of the holes in the fan cone with one of the brackets
(the fi rst and last hole on the fan cone will overlap). Insert a bolt
into each bracket and tighten.
Then, gently bend the ductwork to a 90° angle and slide the free
end onto the fan cone and fasten it thereto using the hooks on
the ductwork’s collar and the latches on the fan cone, as shown
at right in Figure 9.
FIGURE 9
P/N 780100500 05/19 Rev B
