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90° elbow =
5 ft. (1.5 m)
45° elbow =
2.5 ft. (0.8 m)
Recommended standard
fittings
Installation steps
1. Put on gloves and safety
glasses. Place cardboard or another
form of protection on top of a flat
surface where you can easily
assemble the downdraft vent
system. Remove parts packages,
downdraft vent and blower box
from carton. Remove all shipping
materials, tape and protective film
from downdraft vent and blower
box.
4. Attach support legs to side of
downdraft vent with two screws in
each leg. Do not tighten screws.
Excessive Weight Hazard
Use two or more people to move
and install downdraft vent.
Failure to do so can result in back
or other injury.
WARNING
7. Attach 10" (25.4 cm) round
vent collar plate (supplied with
exterior blower system) to front of
downdraft vent using 4 hex washer
nuts.
5. Carefully insert downdraft
vent into countertop cutout. Two
people are recommended to
support the weight of the
downdraft vent during lifting.
Check that downdraft vent is
parallel to side of cutout and that
mounting brackets rest gently on
countertop.
6. Move support legs down
against cabinet floor. Place a level
against front of downdraft vent
base and adjust position of legs
until downdraft is level vertically.
Use a pencil to mark the top of
each leg on face of downdraft vent.
Then mark location of support leg
mounting holes on cabinet floor.
Remove downdraft vent from
cutout. Drill starter holes at each
mounting screw location on
8. Remove the 2 Phillips-head
screws attaching the wiring box
cover and remove cover. Remove
either the back or bottom knockout
and install conduit connector.
NOTE: Power supply cable needed
between exterior blower assembly
and blower box is not provided.
9. Determine the location where
the exterior blower box will be
located. Cut opening in roof or wall
for vent system to exterior blower.
Install exterior blower according to
instructions supplied with the
blower kit.
Wall Installations:
• Use caulking compound between
mounting flange and wall.
Roof Installations:
• Follow standard roofing
procedures.
• The flashing sheet should be
centered over the roof opening.
• Lower edge of flashing should lie
on top of shingles and upper edge
underneath shingles.
• Seal assembly between roof, fan
and flashing with roofing mastic
to prevent leaks.
10
3. Attach the left side and right
side end caps to the downdraft.
Use 1 screw with each end cap.
2. Attach the left side and right
side overcounter support brackets
to the downdraft. Use 1 screw
with each bracket.
over counter
support arm
support leg
mark
level
end cap
cabinet floor. Align top of legs
with pencil marks on face of
downdraft vent. Tighten screws
in legs.
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