3.114 x 10" to 6"
6" to 3-114" x IO"
to 6" = 4.5 ft.
90" elbow = 5 ft.
90" elbow = 9 ft.
. . . . . . . . . . . . . -.
. . . . . . . . . . . . . . . .
6" to 3.114"
6" wall cap
= 5 ft.
x 10" = 1 ft.
= 2.5 ft.
min. 28 in.
open = 0 ft.
Venting system MUST terminate to the
Do Not terminate the ductwork
in an attic
or other enclosed space.
Do Not use 4-inch laundry-type
Do Not use plastic-type
Use Only Metal Ductwork.
Failure to follow these instructions
result in a fire.
Ductwork installed under a concrete slab
using PVC sewer pipe.
6" round metal duct
needed for installation
Wall cap is Not provided
Determine which venting method to use.
Ductwork can extend either through the wall
The length of ductwork
and number of
elbows should be kept to a minimum to
provide efficient performance.
The size of the ductwork
Do Not install two elbows together.
Use duct tape to seal all joints in the
tape to seal the exterior
wall or floor opening around cap.
Do Not cut joist or stud. If ductwork
cutout falls over a joist or stud, a
supporting frame must be constructed.
If it is used, calculate
each foot of flexible ductwork as two feet
of rigid metal ductwork. Flexible elbows
count twice as much as standard elbows.
NOTE: Make sure there is proper clearance
within the wall or floor exhaust duct before
For either interior-mounted
mounted blower installations,
length should not exceed the maximum
lengths listed in the "Maximum length of
duct system" chart. (See Panel C for
blower; Panel E for
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.
gravel or sand
Optional ductwork installed under a concrete slab
into a window well.
Do not vent a gas cooktop into a window well.
6" round PVC
6" round metal duct
to each side of
vent with flange
gravel or sand
Attach support legs to side of
downdraft vent with two screws in
Seal the s ace between the outside of wall cap inlet
inside of B VC coupling with caulking metal.
each leg. Do Not tighten screws.
length of ductwork
For best performance,
use no more than
three 90" elbows. If more than one elbow is
used, make sure that there is a minimum of
24 inches of straight duct between any two
elbows. Do Not install two elbows
It is recommended that you use
round duct instead of rectangular duct,
especially if elbows are required. If
rectangular duct is required, it should be
to 6" round duct as soon as
Use two or more people to move and
Failure to follow this instruction
result in back or other injury.
the length of system
To calculate the length of system you need,
add the equivalent feet for each duct piece
that will be needed. See example for 6"
round ductwork system.
Carefully insert downdraft vent into
countertop cutout. Two people are
to support the weight of the
downdraft vent during lifting. Check that
downdraft vent is parallel to side of cutout
and that mounting brackets overlap
6" round ductwork
Maximum length = 25 ft.
1 - wall cap
8 feet straight
2 - 90" elbows
Move support legs down against
cabinet floor. Place a level against
front of downdraft vent base and adjust until
downdraft vent 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 cabinet floor. Align top of legs
with pencil marks on face of downdraft vent.
Tighten screws in legs.
Length of 6" system = 22.5 feet