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Venting requirements
Horizontal Wall Venting
Now start...
With range hood in kitchen.
Slide cardboard or hardboard under range
before moving range across floor to
prevent damaging floor covering.
Cover countertop, cooktop or set-in range
with a thick, protective covering to prevent
damaging countertop.
3-l/&x 10”
throuah the wall
f
’ f
Aib
I
I cap
I
1 Put on safety glasses and gloves.
Fire Hazard
Venting system must terminate to the
outside.
Do Not vent exhaust air into spaces
within walls or ceilings or into attics,
crawl spaces or garages.
Use metal duct only.
Do Not use four-inch laundry-type wall
caps.
Do Not use plastic ductwork.
Flexible metal duct is Not recommended.
If it is used, calculate each foot of flexible
metal duct as two feet of straight duct.
Flexible metal elbows count twice as
much as standard elbows.
Do Not use to exhaust hazardous or
explosive materials and vapors.
Failure to follow these instructions could
result in a fire.
2
n
Disconnect and move freestanding
range from cabinet opening to provide
easier access to upper cabinet and rear
wall. Put a thick, protective covering over
cooktop, set-in range or countertop to
protect from damage or dirt
3
H Determine which venting method
Figure 3
A
(roof or wall venting or non-venting) you
need to use. This range hood is shipped for
non-vented installation.
If non-venting (recirculating) installation is
desired, follow instructions on Panel D.
7” min. diameter
round ductwork
*I...
. -.-m..---l
wall cap
elbow
: :‘I-’
.:
I I*\
J
I I
3-1/4”x 10” to round
‘.{ a.
l t
l \
ductwork transition
-:,,--’
:.--
Vented installation
vent baffle
Figure 4
Recommended ductwork length
Use 3-l /4” x 10” or 7” ductwork with a
m’aximum length of 26 feet for ductwork
system. For best performance, use no more
Wan three 90” elbows. To calculate the
length of system you need, add the
equivalent feet for each ductwork piece
used in the system. See the following
examples.
Ductwork needed for insfallofion is not
included. Wall or roof caps used must have
backdrafl damper.
Determine which outside venting method
needs to be used NOTE: If a non-vented
(recirculating) installation is desired, follow
instructions on Panel D.
The length of the ductwork and number of
elbows should be kept to a minimum to
provide efficient performance. The size of
the ductwork should be uniform. Do Not
install two elbows together. Use duct tape
to seal all joints in the ductwork system.
Ductwork can terminate either through the
roof or wall. Use caulking to seal exterior
wall or roof opening around exhaust hood.
For the most efficient and quiet operation, it
is recommended that the range be vented
vertically through the roof through 7” round
ductwork.
Figures l-4 show common venting methods
and what types of materials are needed.
Vertical Roof Venting
roof cap
.‘Q:,
4
F
W Remove screws from vent baffle on
top of range hood. Remove vent baffle.
3- l/4” x 10” ductwork system
3 - 114” x 10”
H- 6 ft.
elbow
wall cap
0
3
-7
* ft’
Maximum 1 - 90” elbow IenLth
= = 26 5ft feet
8 feet straight
= 8ft.
u
1 - wall cap
= Oft.
Length of
3- l/4” x 10” system
= 13 ft.
in
top of range hood so that the word
“Vented” is facing up. Fasten vent baffle
with screws.
Recommended standard fittings
7” round
through t
roof
damper locatec?-
as far from hood
as possible
3-114” x 10” 90”
3-114” x 10” flat 3-l/4” x 10” wail
elbow = 5 ft.
elbow = 12 ft.
cap=oft.
7” ductwork system
knockouts
6
n
Remove knockout from the wiring
opening (top or rear) to be used.
For rectangular venting, remove only the
3-l/4” x 10” rectangular opening knockout.
For round ductwork venting through roof,
remove both opening knockouts.
Figure 1
Vertical Roof Venting
ro/f cap
/
3-1/4”x 10”
Maximum length
= 26 feel
to 7”
transition
1 - transition
= 4,5 ft
2 - 90” elbows
=lO ft.
8 feet straight
= 8 ft.
1 - wall cap
= 0 ft.
Length of 7” system = 22.5 ft
3-114” x 10”
through the roof
Recommended standard fittings
terminal
box
3-114” x 10”
damper
3-114” x IO” to 3-114” x 10” to 7” 7” to 3-114” x 10”
7” = 4.5 ft. 90” elbow = 5 ft. 90” elbow = 9 ft.
from
n
Remove terminal box cover
Figure 2
range hood
90” elbow = 7” to 3-114”
5 ft.
xlO”=lft.
;“,“;lbow = I’;wtizll cap
. .
Panel B