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1 INSTAll DoWNDRAfT VeNT
Place the downdraft vent into the countertop
cutout, against the back side.
bracket location for right-side or straight-
down blower discharge
Support
Bracket
A
• Locate the brackets and attachment screws.
On some models, the attachment screws may
be placed on the control box in position A or B.
• Fasten one bracket to each side rail, position A
and B, and secure to the cabinet back wall.
bracket location for left-side blower
discharge
C
Support
Bracket
• Locate the brackets and attachment screws.
On some models, the attachment screws may
be placed on the control box in position A or B.
• Use location C on the
control box instead
of location A for left
discharge orientation
of the blower.
• When installing in
a tile countertop
surface, it may be
necessary to apply
a locally approved caulking to cover any gaps.
Installation Instructions
Support
Bracket
B
Top View of
Support Bracket
Support
B
Bracket
Top View of
Support Bracket
A
C
2 INSTAll DucTWoRk
• The downdraft blower system is designed for use
with 3-1/4" x 10" ductwork. It can be transitioned
to 6" round.
• Ductwork MUST be vented to the outside—never
in a crawl space, attic or other enclosed space.
• 6" PVC duct should be used when installing under
a concrete slab.
NoTe: Local building code must be followed
for installation in specifying approved type and
schedule of PVC duct used.
Air
Flow
• DO NOT USE flexible plastic ducting.
• Always use appropriate roof or wall cap with
damper. Laundry-type wall caps should never
be used.
• Use the straightest duct run possible.
• For satisfactory performance, the duct run should
not exceed 150 ft. or its equivalent length when
bends or various fittings are used. Refer to the
table of equivalent lengths to calculate your
installation.
• Install ductwork so the piece of duct nearest the
downdraft unit slots INTO the next piece of the
duct. Secure the joints with self-tapping screws
and apply duct tape around the joints to ensure
an airtight seal.
11
Duct Tape
Over Seam and Screw
Screw
682Dia53
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