KitchenAid 30" (76.2 CM) SLIDE-OUT RANGE HOOD Installation Instructions And Use & Care Manual page 6

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 with 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.
Venting Methods
This range hood is factory set for venting through the roof or
through the wall.
The vent system needed for installation is not included.
A 6" (15.2 cm) round vent system is recommended.
Roof Venting
B
A
A. 6" (15.2 cm) vent through
the roof
B. Roof cap
Calculate Vent System Length
The recommended vent system is 6" (15.2 cm) round vent with a
maximum length of 35 ft (10.7 m). For the best performance, use
no more than three 90° elbows.
To calculate the length of the system, add the equivalent feet
(meters) for each of the vent pieces used in the system.
Vent Piece
45° elbow
90° elbow
6
Wall Venting
A
B
A. 6" (15.2 cm) vent through
the wall
B. Wall cap
6" (15.2 cm)
2.5 ft
(0.8 m)
5.0 ft
(1.5 m)
Example vent system - 6" (15.2 cm)
90˚ elbow
3 ft
(0.93 m)
Maximum Length = 35 ft (10.7 m)
1 - 90° elbow = 5 ft (1.5 m)
1 - wall cap = 0 ft (0 m)
9 ft (2.8 m) straight = 9 ft (2.8 m)
System length = 14 ft (4.3 m)
Non-Vented (recirculating) Installations Through the
Soffit/Cabinet
If it is not possible to vent cooking fumes and vapors to the
outside, the range hood can be used in the non-vented
(recirculating) version, using a charcoal filter. Recirculation Kit
Part Number W10356918 is available from the dealer or an
authorized parts distributor. Damper installation is not required.
A
B
D
F
A. Ceiling
B. Vent cover
C. Soffit
C
B
A
A. Range hood
B. Vent system
C. Top of cabinet
Wall cap
6 ft (1.8 m)
F
E
D. 6" (15.2 cm) vent
E. Range hood
F. Cabinet
D
E
D. Vent cover
E. Ceiling or soffit
A
B
C
D
E