Installation Clearances
C
B
A
E
A. 18" (45.7 cm) min. clearance - upper cabinet to countertop
B. 24" (61.0 cm) suggested minimum - bottom of range hood to
cooking surface
C. 30" (76.2 cm) min. cabinet opening width for 30" (76.2 cm)
models and 36" (91.4 cm) min. cabinet width for 36" (91.4 cm)
models
D. 12" (30.5 cm) minimum cabinet depth
E. 36" (91.4 cm) base cabinet height
D
Venting Requirements
Vent system must terminate to the outdoors.
Do not terminate the vent system in an attic or other enclosed
area.
Do not use a 4" (10.2 cm) laundry-type wall cap.
Use a 7" (17.8 cm) round metal vent. Rigid metal vent is
recommended. Plastic or metal foil vent is not recommended.
The length of vent system and number of elbows should be
kept to a minimum to provide efficient performance.
For the most efficient and quiet operation:
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 2 elbows together.
Use clamps or duct tape to seal all joints in the vent system.
The vent system must have a damper.
Use caulking to seal exterior wall or roof opening around the
cap.
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.
Venting Methods
Vent system can terminate either through the roof or wall. Use
7" (17.8 cm) or larger round vent with a maximum length of
50 ft (15.2 m) for vent system.
NOTE: Flexible vent is not recommended. Flexible vent creates
both back pressure and air turbulence that greatly reduce
performance.
Roof Venting
B
A
C
A. 7" (17.8 cm) round vent
through roof
(purchased separately)
B. Roof cap with damper
(purchased separately)
C. 24" (61.0 cm) min. above the
cooking surface
Wall Venting
B
A
C
A. 7" (17.8 cm) round vent out
the top and through the wall
(purchased separately)
B. Wall cap with damper
(purchased separately)
C. 24" (61.0 cm) min. above the
cooking surface
5
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