Field Controls VentCool Summit S-Class Series Installation Manual page 9

INSTALLATION: FAN & DUCT
NOTES:
• The fan assembly must be soundly supported by attachment to structurally sound framing. Provide
additional framing with minimum 2-by-4 lumber as needed for fan support.
• The fan assembly should be positioned with at least 24" of free space in front of the fan, for air to be freely
blown into the attic by the fan.
• Position the fan with a slight upward angle and in a direction minimizing disturbance to attic insulation.
• The acoustical duct should be installed with a gentle bend of close to 90 degrees, from vertical to nearly
horizontal, to minimize fan sound inside the living space. It must not be kinked or bent sharply, especially
where leading into the fan.
• The acoustical duct must be installed with the air ow direction arrow (as marked on the duct) pointing
downstream (towards the fan).
• Refer to Figure 3 for Flex Duct to Fan Assembly Connection. This model includes a transition cone to be
installed on the inlet side of the fan assembly BEFORE mating the ex duct to the fan assembly. The transition
cones are shipped loose with the ex duct and in the same box as the ex duct and fan assembly.
1. Lay the fan assembly on top of the ceiling joists, within a few feet of the damper assembly and underneath the
area where the fan will be suspended in place.
2. Rotate and brace the fan assembly so that the electrical handy-box on the fan is in the 12-o'clock position (on the
top of the fan). This is important to avoid twisting the duct, while having the fan's electrical handy-box within
the 10- to 2-o'clock position once installed.
3. Fan Inlet Collar (Transition Cone) Installation for Model S6.5 (Refer to Figure 3): Connect the transition cone to
inlet side of fan assembly using 4 self-driving/self-tapping sheet metal screws provided in the hardware kit.
Seal joint with approved duct tape, metal tape, mastic or other approved means.
4. Adjust the exible duct collar on the upstream end (fan side) of the duct to be as loose as possible which may
require the removal of the slide rivet on the ex duct collar section for maximum opening (looseness).
Install four (4) self-driving/self-tapping screws provided to secure the ex duct to fan assembly or transition
cone connected to the fan assembly. (Refer to Figure 3) Squeeze and position the other end of ex duct collar
section over the oval-shaped collar on the damper box and secure in place using three (3) self-drilling/
self-tapping screws provided. Note: that twisting the duct during assembly will cause the fan to try to roll out
of position. Seal joint with approved duct tape, metal tape, mastic or other approved means.
5. Lift and support the fan assembly into position beneath the rafters, truss structure or other framing to be used
to support the fan, with the electrical handy box at approximately the twelve-o-clock position. Attach both
ends of the metal fan support strap to the framing using a minimum of two screws for each end of the
strap. 1" drywall screws and large washers are supplied; other fasteners of appropriate strength may also be used.
FIGURE 3: FLEX DUCT TO TRANSITION CONE TO
FAN ASSEMBLY CONNECTION (MODELS: S6.5)
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P/N 780104700 03/20 Rev A