6
VENTING REQIUREMENTS
■
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.
■
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 to seal all joints in the vent
system.
■
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.
■
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 temper-
atures 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 Method
This canopy hood is factory set for through
the roof or wall.
A 6" (15.2 cm) round vent system is needed
for installation. The hood exhaust opening is
6" (15.2 cm) round.
To vent through a wall, a 90° elbow is
needed.
Rear Discharge
A 90° elbow may be installed immediately
above the hood.
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 non-vented (recirculating)
version, fitting a carbon filter at the motor.
Fumes and vapors are recycled through the
top grille. Do not block the chimney holes.
