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INTELLIZONE2 INSTALLATION MANUAL
Insulating Rectangular Dampers in
Metal Ductwork
Insulate ductwork as shown in Figure 5. All metal must
be covered. Care must be taken not to obstruct the shaft
from rotating when insulating. Do not insulate the zone
damper actuator.
Installing Rectangular Dampers
in Ductboard
1.
Cut out dimensions A and B by using a ductboard
knife.
NOTE:
Dimensions A and B are listed in the
Dimensional Examples table.
2.
A ductboard spacer should be installed on the end
of the damper frame as shown in Figure 7 to prevent
excessive air bypass. For example: A one-inch-thick,
8 in. x 20 in. ductboard and a 8 in. x 20 in. zone
damper would have a one-inch gap at the end of the
frame once it is installed without a ductboard spacer.
Use the piece cut out for installation.
3.
Foam insulation tape should be used on the top and
bottom of the zone damper to prevent excessive air
bypass as shown in Figure 7.
4.
Slide the zone damper into the ductboard making
sure no obstructions will interfere with damper
blade operation.
5.
Tape the damper face flange to the ductboard using
foil tape making sure the damper is secure and air tight
as shown in Figure 8.
6.
Support the full length of the ductboard underside
within six inches and on both sides of the damper as
shown in Figure 8.
7.
Check the damper blade operation for obstructions
by holding the manual release button and rotating the
damper shaft CCW and CW (see Figure 4).
Damper Installation cont.
Do not insulate zone
damper actuator
Duct wrap insulation
Figure 5: Insulating Rectangular Metal Ductwork
A
B
Duct board
Keep spacer clear
of end bushing
Foam tape
(top and bottom)
Insulate between
actuator and damper
spacer
Figure 7: Taping Zone Damper with Foam Tape
Foil tape damper face
to ductboard
Support the full length of ductboard
underside within 6” of damper
Figure 8: Taping Damper Flange to Ductboard
