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Recommended maximum duct length
Follow these recommendations on duct length to achieve 80% exhaust efficiency.
3¼" x 10" damper
3¼" x 14" damper
assembly
assembly
horizontal discharge
horizontal discharge
maximum duct
maximum duct
length
length
91 ft.
79 ft.
82 ft.
71 ft.
73 ft.
62 ft.
Note: 6" round ducting is possible but may reduce
exhaust efficiency.
4.2 Preparing the appliance
Remove all packaging and protective film from the hood
1.
and parts.
Remove the grease filters from the hood.
2.
Use the finger cup to push the filter down
‒
out
.
7" round duct
Roof or wall cap with
damper
vertical discharge
maximum duct
length
92 ft.
1
78 ft.
1
62 ft.
1
Remove parts and installation accessories from inside
3.
the hood.
Remove both screws
‒
assembly to the hood.
Remove the damper assembly
‒
hood and keep the screws for further use.
Remove the parts bag located behind the damper
‒
assembly.
and tilt it
Remove the wiring cover by sliding it out from the hood
4.
and set it aside.
Preparing the installation en-us
Elbow(s) 90° and/or
45°
(Standard elbows
with 1" internal
radius)
0
1
2
holding the damper
from inside the
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