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7
SOFFIT
18" MIN - 24" MAX
ABOVE
COOKING SURFACE
CABINET
3¼" X 10" DUCT
(FOR HORIZONTAL DISCHARGE)
WALL CAP
ROOF CAP
3¼" X 10" OR
7" ROUND DUCT
(FOR VERTICAL
DISCHARGE
)
HOUSE WIRING
(TOP OR BACK OF HOOD)
HOOD
1. Determine whether hood will discharge vertically (3¼” x 10”
or 7” Round) or horizontally (3¼” x 10” only).
2. Run ductwork between the hood location and a roof cap
or wall cap.
3. The ducting from this fan to the outside of the building has
a strong eff ect on the air fl ow, noise and energy use of
the fan. Use the shortest, straightest duct routing possible
for best performance, and avoid installing the fan with
smaller ducts than recommended. Insulation around the
ducts can reduce energy loss and inhibit mold growth.
Fans installed with existing ducts may not achieve their
rated airfl ow. Refer to the table below to help you plan
the most effi cient installation.
4. Install wall cap or roof cap (sold separately); ensure there
is no leak in hoiouse insulation. Connect metal ductwork
to cap and work back towards the hood location. Use 2”
metal foil duct tape to seal the joints between ductwork
sections.
INSTALL DUCTWORK (DUCTED INSTALLATION ONLY)
NOTE: Distances over 24” are at the installer and user
discretion.
1. If present, remove all protective polyfi lm from the hood
and/or parts. Using the fi nger cup, remove the Micromesh
Filters from the hood by pushing down and tilting fi lters
out.
PREPARE THE HOOD
B
C
DAMPER
ASSEMBLY
SCREWS
EZ1
BRACKETS
2. Remove the EZ1 brackets from inside the hood by
cutting off the tie wrap. Remove both screws holding
damper assembly to hood. Remove parts bag (captured
behind the damper assembly). Remove damper assembly
from inside the hood and keep the screws for further use.
Maximum Duct Lengths Recommended to Achieve 80% Exhaust Effi ciency
3¼” X 10” HORIZONTAL
MAXIMUM DUCT LENGTH
3¼” X 10” VERTICAL
MAXIMUM DUCT LENGTH
7” ROUND MAXIMUM
DUCT LENGTH
ROOF OR WALL
CAP WITH DAMPER
ELBOW(S)*
(90° AND/OR 45°)
91 ft. 79 ft. 92 ft. 1 0
82 ft. 71 ft. 78 ft. 1 1
73 ft. 62 ft. 62 ft. 1 2
* Standard elbows with 1” internal radius.
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