The chimneys can be adjusted for different ceiling heights. See the following chart.
Vented Installations
| Min. ceiling height | Max. ceiling height |
|
|
|
Electric cooking | 7' 9" (2.36 m) | 9' 10" (3.0 m) |
surface |
|
|
Gas cooking | 8' (2.44 m) | 9' 10" (3.0 m) |
surface |
|
|
| ||
| ||
|
|
|
| Min. ceiling height | Max. ceiling height |
|
|
|
Electric cooking | 7' 9" (2.36 m) | 10' 4" (3.15 m) |
surface |
|
|
Gas cooking | 8' (2.44 m) | 10' 4" (3.15 m) |
surface |
|
|
Venting Methods
This island hood is factory set for venting through the roof.
A 6" (15.2 cm) round vent system is needed for installation (not included). The hood exhaust opening is 6" (15.2 cm) round.
NOTE: Flexible vent is not recommended. Flexible vent creates back pressure and air turbulence that greatly reduce performance.
Vent system can terminate either through the roof or wall. To vent through a wall, a 90° elbow is needed.
For Non-Vented (recirculating) Installations
If it is not possible to vent cooking fumes and vapors to the outside, the hood can be used in the
*NOTE: The range hood chimneys are adjustable and designed to meet varying ceiling or soffit heights depending on the distance “C” between the bottom of the range hood and the cooking surface. For higher ceilings, a Stainless Steel Chimney Extension Kit Part Number W10272078 is available from your dealer or an authorized parts distributor. The chimney extension replaces the upper chimney shipped with the range hood.
Venting Requirements
■ Vent system must terminate to the outside, except for non- |
vented (recirculating) installations. |
■ Do not terminate the vent system in an attic or other enclosed |
area. |
■ Do not use 4" (10.2 cm) |
■ Use metal vent only. Rigid metal vent is recommended. Do |
not use plastic or metal foil vent. |
■ The vent system must have a damper. If the roof or wall cap |
Roof Venting
A
B 
A |
B |
has a damper, do not use the damper supplied with the range |
hood. |
For the Most Efficient and Quiet Operation:
■Use a straight run or as few elbows as possible.
■Use no more than three 90° elbows.
■Make sure there is a minimum of 24" (61.0 cm) of straight vent between the elbows if more than 1 elbow is used.
■Do not install 2 elbows together.
■Use vent clamps to seal all joints in the vent system.
■Use caulking to seal exterior wall or roof opening around the cap.
■The size of the vent should be uniform.
Cold Weather Installations
An additional back draft damper should be installed to minimize backward cold air flow and a thermal break should be installed to minimize conduction of outside temperatures as part of the vent system. The damper should be on the cold air side of the thermal break.
The break should be as close as possible to where the vent system enters the heated portion of the house.
Makeup Air
Local building codes may require the use of makeup air systems when using ventilation systems greater than specified CFM of air movement. The specified CFM varies from locale to locale.
Consult your HVAC professional for specific requirements in your area.
A. Roof cap | A. Deflector |
B. 6" (15.2 cm) round vent | B. 6" (15.2 cm) round vent |
NOTE: Wall venting can be an option for
Calculating Vent System Length
To calculate the length of the system you need, add the equivalent feet (meters) for each vent piece used in the system.
Vent Piece | 6" (15.2 cm) Round |
45° elbow | 2.5 ft |
| (0.8 m) |
90° elbow | 5.0 ft |
| (1.5 m) |
Maximum equivalent vent length is 35 ft (10.7 m).
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