Venting Requirements - Whirlpool WVI30330LS Installation Instructions And Use & Care Manual

Product Dimensions
A
D
A. 12 / "(30.8 cm)
1
8
B. 13 / "(33.5 cm)
3
16
C. *28 / "(72.7 cm) min. 493/
5
8
**281/ "(71.3 cm) min. 441/
16
D. 25 / "(65.3 cm)
11
16
E. 30"(76 cm) or 36"(91.2 cm)
* For non-vented (recirculating) installations
** For vented installations
Installation Dimensions
B
A
A. Countertop height
B. Hood height from ceiling to bottom
of the range hood filter surface: D-A-C=B
C. Hood height: 24" (61 cm) min. from electric cooking
surface, 27" (68.6 cm) min. from gas cooking surface,
suggested 36" (91.4 cm) max.
D. Ceiling height
* For non-vented (recirculating) installations
IMPORTANT:
Minimum distance "C": 24" (61 cm)
from electric cooking surface
Minimum distance "C": 27" (68.6 cm)
from gas cooking surface
Suggested maximum distance "C": 36" (91.4 cm)
B
C
E
"(125.4 cm) max.
8
"(113.1 cm) max.
2
D
C
The chimneys can be adjusted for different ceiling heights.
See the following chart.
Vented Installations
Min. ceiling height
Electric cooking 7' 8" (2.34 m)
surface
Gas cooking 7' 11" (2.41 m)
surface
Non-Vented (Recirculating) Installations
Min. ceiling height
Electric cooking 7' 8" (2.34 m)
surface
Gas cooking 7' 11" (2.41 m)
surface
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 Chimney Extension Kit is available
from your dealer or an authorized parts distributor. The chimney
extension replaces the upper chimney shipped with the range
hood. See the "Assistance or Service" section to order.

Venting Requirements

(vented models only)
■
Vent system must terminate to the outdoors 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) laundry-type wall cap.
■
Use metal vent only. Rigid metal vent is recommended.
Plastic or metal foil vent is not recommended.
■
The vent system must have a damper. If the roof or wall
cap 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 cm) of straight
vent between the elbows if more than 1 elbow is used.
■ Do not install two 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.
Max. ceiling height
9' 10" (3 m)
9' 10" (3 m)
Max. ceiling height
10' 3" (3.12 m)
10' 3" (3.12 m)
5