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5
Ducting
WARNING
To reduce the risk of fire, use only metal ducting.
IMPORTANT NOTE:
Consult a qualified HVAC professional
for specific installation and ducting applications.
Pro ventilation hoods accommodate a 254 mm round duct.
Use only rigid metal ducting.
A straight, short duct run will allow the ventilation hood to
perform most efficiently. If the duct run exceeds 15 m, a
higher CMH blower may be required to maintain proper air
flow.
Internal and in-line blowers require a roof or wall cap.
Connect ducting to the cap or to the remote blower and
work back towards the hood. Use sheet metal screws and
high temperature duct tape to seal joints between ducting
sections.
INSTALLATION
4
For an internal blower, mount the blower to mounting
studs and secure with nuts. Refer to the illustration
below.
5
Reattach the back panel assembly.
6
Mount the damper and hold-down brackets to the top
of the hood, secure with screws and seal with duct tape.
Refer to the illustration below.
Hood Preparation
If an internal blower will be used, install the blower prior to
mounting the hood. Refer to installation instructions pro-
vided with each blower assembly for specific mounting and
wiring instructions.
If a duct cover or backsplash will be used, it must be
attached prior to installation of the hood. Refer to installa-
tion instructions provided with each accessory.
1
Remove filters prior to installation. To remove, press
filter upward then rotate the bottom downward. Remove
grease cups from the bottom edge of the hood.
2
The hood is shipped with the damper attached upside
down inside the top of the hood. It must be removed and
reinstalled in the proper position. Refer to the illustration
below. Detach the back panel and damper assembly
from the hood by removing top and rear screws.
3
Separate the damper from the back panel by removing
the hold-down brackets. Remove the packaging material
used to prevent flap damage during shipping. The
damper will not function properly unless this material
is removed. Refer to the illustration below.
DAMPER
HOLD-DOWN
BRACKET
PACKAGING
MATERIAL
BACK PANEL
Damper position (shipping).
Damper removal.
MOUNTING
STUD
HOLD-DOWN
BRACKET
DAMPER
ELECTRICAL BOX
Internal blower mounting.
Damper mounting.
SPECIFICATIONS
Pro hoods include a backdraft damper. Local codes may
require the use of an additional backdraft and/or make-
up air damper. Contact your local HVAC professional for
specific requirements. A make-up air damper is available
through an authorized Wolf dealer.
