Venting requirements | Horizontal wall venting |
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Venting system must terminate to the outside.
Do not terminate the vent in an attic or other enclosed space.
Do not use
Do not use plastic vent.
Vent system needed for installation is not included. Wall or roof caps used must have backdraft damper.
Determine which outside venting method needs to be used. NOTE: If a
The length of the vent system and number of elbows should be kept to a minimum to provide efficient performance. The size of the vent system should be uniform. Do Not install two elbows together. Use duct tape to seal all joints in the vent system. Vent system 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 vent system.
Figures 1-4 show common venting methods and what types of materials are needed.
Vertical roof venting
roof cap
7" round |
through roof |
damper located |
as far from hood |
as possible |
66" |
Figure 1
Vertical roof venting
roof cap
through the wall |
wall cap |
66" |
Figure 3
roof cap
7" min. diameter | wall cap |
round vent |
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elbows |
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Figure 4
Recommended vent length
Use
3-1/4" x 10" vent system
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| 6 ft. |
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elbow |
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| Maximum length | = 26 feet | ||
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| 1 - 90° elbow | = | 5 | ft. | |
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| 8 feet straight | = | 8 | ft. |
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| 1 - wall cap | = | 0 | ft. |
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| Length of |
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| 10" system | = 13 | ft. | |
Recommended standard fittings
elbow = 5 ft. | elbow = 12 ft. | cap = 0 ft. |
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7" vent system
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
1.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,
2.Determine which venting method (roof or wall venting or
If
Vented installation
3.
Remove screws from vent baffle on
top of range hood. Remove vent baffle.
4.
Turn vent baffle and reinsert in slot in top of range hood so that the word “Vented” is facing up. Fasten vent baffle with screws.
vent knockouts
66"
Figure 2
90° elbow
6 ft.
2 ft.
Maximum length
1 - transition
2 - 90° elbows
1 - wall cap
8 feet straight
wall cap
=26 feet
=4.5 ft.
=10 ft.
=0 ft.
=8 ft.
5. | wiring |
knockouts | |
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Remove knockout from the wiring opening (top or rear) to be used.
For rectangular venting, remove only the
For round ventwork venting through roof, remove both opening knockouts.
Length of 7" system = 22.5 ft.
Recommended standard fittings
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| 90° elbow = 5 ft. | |||||||
| 7" = 4.5 ft. | 90° elbow = 5 ft. |
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45° elbow = 2.5 ft. | 7" wall cap = 0 ft. |
terminal box cover
6.
Remove terminal box cover from range hood.