To calculate the length of the system you need, add the equivalent feet (meters) for each vent piece used in the system.
| 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) | |||||
Vent Piece | Rectangular | |||||
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3¹⁄₄" x 10" (8.3 cm x 25.4 cm) | 5.0 ft | |||||
90° elbow | (1.5 m) |
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3¹⁄₄" x 10" (8.3 cm x 25.4 cm) | 12.0 ft | |||||
flat elbow | (3.7 m) |
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3¹⁄₄" x 10" (8.3 cm x 25.4 cm) | 0.0 ft | |||||
wall cap | (0.0 m) | |||||
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Vent Piece | 6" (15.2 cm) Round | |||||
45° elbow | 2.5 ft | |||||
| (0.8 m) | |||||
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90° elbow | 5.0 ft | |||||
| (1.5 m) | |||||
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6" (15.2 cm) | 0.0 ft | |||||
wall cap | (0.0 m) | |||||
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3¹⁄₄" x 10" (8.3 cm x 25.4 cm) | 4.5 ft | |||||
to 6" (15.2 cm) transition | (1.4 m) | |||||
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6" (15.2 cm) to 3¹⁄₄" x 10" | 1 ft | |||||
(8.3 cm x 25.4 cm) transition | (0.3 m) | |||||
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3¹⁄₄" x 10" (8.3 cm x 25.4 cm) | 5.0 ft | |||||
to 6" (15.2 cm) 90° elbow | (1.5 m) | |||||
transition |
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6" (15.2 cm) to 3¹⁄₄" x 10" | 5.0 ft | |||||
(8.3 cm x 25.4 cm) 90° elbow | (1.5 m) | |||||
transition |
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Example Vent System
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| 6 ft |
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| 2 ft (0.6 m) | |||
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| D |
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| A. Blower motor | C. 90° elbows | |||||||||||||||
| B. Transition | D. Back draft damper | |||||||||||||||
The following example falls within the maximum vent length of 35 ft (8.9 m).
2 - 90° elbow
1 - wall cap
8 ft (2.4 m) straight Transition
Length of 6" (15.2 cm) or 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) system
Install Vent System
WARNING
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.
1.Place cardboard or similar material on top of a flat surface where you can easily assemble the downdraft vent system.
2.Remove parts packages, downdraft vent and blower box from the carton.
3.Remove all shipping materials, tape and film from the downdraft vent and blower box.
4.Install the right and left undercounter mounting brackets to the vent box. Slide the keyhole slots over the guide tabs and push the brackets up to set them into place.
B
A
C
D
A. Vent box
B. Undercounter mounting bracket
C. Keyhole slots
D. Guide tabs
9
