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7-9/16"
(19.2 cm)
Vent Equivalent No. of Total
Piece Length Pieces/ Equivalent
Length Length
straight vent per lineal ft.
3-1/4" x 10" 1 ft. (30.5 cm)
6" round 1 ft. (30.5 cm)
6" flexible 2 ft. (61 cm)
elbow
6" round 45° elbow 2 .5 ft. (76 cm)
6" round 90° elbow 5 ft. (152 cm)
3-1/4" x 10" flat elbow 12 ft. (366 cm)
3-1/4" x 10" 90° elbow 5 ft. (152 cm)
transition to round
5" to 6" 1 ft. (30.5 cm)
3-1/4" x 10" to 6" 90° elbow 9 ft. (274 cm)
3-1/4" x 10" to 6" 4.5 ft. (137 cm)
transition to flat
5" to 3-1/4" x 10" 90° elbow 6 ft. (183 cm)
6" to 3-1/4" x 10" 90° elbow 5 ft. (152 cm)
6" to 3-1/4" x 10" 1 ft. (30.5 cm)
wall cap*
3-1/4" x 10" 0 ft. (0 cm)
5" or 6" round 0 ft. (0 cm)
roof cap*
10" x 10" 0 ft. (0 cm)
thermal break
5" or 6" round 2 ft. (61 cm)
Total equivalent vent system length
Venting methods
Determine range blower setting.
This cooktop is equipped with a dual range blower. It is factory set at
“Low” range to be used for equivalent vent length runs of 30 feet
(9.1m) or shorter. If the equivalent vent length exceeds 30 feet (9.1m),
the blower must be shifted to “High” range. Do Not shift to “High”
range for runs shorter than 30 feet (9.1m). Using the “High” range on
shorter runs will cause excessive noise and conditioned air loss, and
will affect the flame pattern of gas burners.
List the number of each piece and length of straight vent you will use.
Multiply the equivalent length by the number of pieces. Add the totals
to get the total equivalent length of your system.
The cooktop may be vented through the
rear wall or floor. Common venting
methods and the types of materials
needed are shown.
Make sure there is proper clearance within
the wall or floor for exhaust vent before
making cutouts.
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28-7/8"
(73.3 cm)
20-15/16"
(53.2 cm)
13"
(33 cm)
9-3/8"
(23.8 cm)
opening
for venting
through floor
opening for venting
through rear wall
inside wall
cabinet
3-1/4" x 10"
transition
elbow
3-1/4" x 10"
transition
elbow
inside wall to roof
or overhang
optional vent arrangement under concrete slab
outside wall
cabinet
directly
outside
peninsula
or island
peninsula
between floor joists
cabinet toe space
to outside
wall cap
6" round PVC
coupling
6" round PVC
sewer pipe
6" round metal vent
Tightly pack gravel
or sand completely
around pipe.
5" to 6" round metal transition
6" round metal vent
6" round PVC coupling
6" round PVC sewer
pipe
concrete slab
6" diameter
90° PVC
sewer pipe
6" diameter
90° PVC
sewer pipe
16" (40.6 cm)
maximum
12" minimum
(30.5 cm)
30’ (9.1 m)
maximum
air flow
air flow
air flow
air flow
air flow this direction
not recommended
* Length for required wall/roof cap has already been incorporated
into rating for maximum vent system length. A suitable wall/roof
cap must be used.
Vent system equivalent length 30 feet
or less — blower should be set at
“Low” range.
5" to 6" transition
blower at
Low range
2 ft.
(61 cm)
4 ft. (122 cm)
6", 90° elbows
6", wall
cap
90° elbows (2) = 10 ft. (305 cm)
12 feet (366 cm) straight = 12 ft. (366cm)
5" to 6" transition = 1 ft. (30.5 cm)
Wall cap = 0 ft. (0cm)
Equivalent length of 6" round system = 23 ft. (701.5 cm)
(In this example, blower can be left in “Low” range as set at factory.)
5" to 6" transition
6", 90° elbows
4 ft. (122 cm)
4 ft.
(122 cm)
3-1/4" x 10" wall cap
6" to 3-1/4" x 10"
transition
10 ft. (305 cm)
90° elbows (3) = 15 ft. ( 457.2 cm)
5" to 6" transition = 1 ft. ( 30.5 cm)
6" to 3-1/4" x 10" transition = 1 ft. ( 30.5 cm)
Wall cap = 0 ft. ( 0 cm)
16 feet (488 cm) 6" straight = 16 ft. ( 488 cm)
10 feet (305 cm) 3-1/4" x 10" straight = 10 ft. ( 305 cm)
Equivalent length of 6" round system = 43 ft. (1311.2 cm)
(In this example, blower MUST be shifted to “High” range.)
Note: Flexible metal vent is Not recommended.
If it is used, calculate each foot of flexible duct as two
feet of straight metal vent. Flexible metal elbows count
twice as much as standard elbows.
Shifting blower
to “High” range
To shift blower to
“High” range:
1. Turn blower off.
2. Remove the air grille and
filter from blower housing.
3. Snap the spring-loaded
restricter ring out of the
blower inlet.
4. Reinstall the filter and air
grille.
restricter
ring
blower
Page 4
6 ft. (183 cm)
6 ft. (183 cm)
air flow
Example:
Example:
Vent system equivalent length greater
than 30 feet — blower should be set at
“High” range.
2 ft.
(61 cm)
SBCCI
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