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Under-Cabinet Mount Range Hood Models
3¼" x 10" (8.3 x 25.4 cm) Rectangular Makeup Air Switch
Duct (From kit W10446914)
NOTE: The range hood must be mounted before the makeup air
switch duct is attached. Use the Installation Instructions that
came with the range hood.
1. Disconnect power.
2. If range hood is installed, remove the vent system and put it
aside.
3. Install the makeup air switch duct to the vent transition and
seal connection. The terminal box cover should be to the
front for wiring access.
4. Install the vent system onto the makeup air switch duct and
seal connections. Finalize the installation of the range hood
using the Installation Instructions that came with range hood.
Install Motorized Damper
IMPORTANT: Observe all governing codes and ordinances.
Proper location of the outside air intake is necessary to ensure
that the damper can reliably allow fresh air to enter the home. The
following requirements for the location of the outside air intake
must be met:
■ Outside air intake is to be located a minimum of 10 ft (3.05 m)
from combustion appliance vents, chimneys, plumbing
stacks, and bathroom, laundry, or kitchen exhaust vents.
■ Outside air intake is to be placed high enough above grade to
prevent blockage from snow or other debris such as leaves,
and at a minimum of 1 ft (30.5 cm) above grade.
■ The damper should be installed to draw air directly from
outdoors. Makeup air should not be drawn from crawl
spaces, garages, attics, adjacent dwelling units, or any
enclosed part of the building.
Install the motorized damper as shown. See the illustrations in
“Typical Installations” in the “Location Requirements” section for
reference.
Make Electrical Connection
To Remove and Install Motorized Damper Terminal Box
Cover
1. Press in and lift up on the end of terminal box cover with wire
hole to remove cover.
2. To install terminal cover, place tab on solid end of cover into
small slot in motor mount, swing cover over motor and slip
second tab into larger slot.
A. Vent system
B.Vent transition
A.Terminal box cover
B. Makeup air switch duct
C. Vent transition
A
B
C
A
B
A. Wall register
B. Ducts
C. 6" (15.2 cm) motorized damper
D. Wall/roof
E. Wall or roof cap
F. A i r f l ow
A
B
C
B
D
E
F
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.