8
INTELLIZONE2 INSTALLATION MANUAL
Insulating Rectangular Ductboard/
Metal Sleeve
Care must be taken not to obstruct the shaft from rotating
when insulating. Do not insulate the zone damper actuator.
Installing Circular Dampers in Round
Metal Duct
1.
Crimp the end of the duct that is the supply air to
damper. Insert into circular damper no more than
1.5 inches.
2.
Fasten the duct to the damper with three screws.
Screws installed more than one inch from either end
may obstruct damper blade rotation.
3.
Seal completely around the duct with metal duct tape
or mastic to prevent air leakage as shown in Figure 10.
4.
Check the damper blade operation for obstructions by
holding the manual release button and rotating damper
shaft CCW and CW (3 wire only). See Figure 4.
5.
Support the duct to joist within six inches of the
damper as shown in Figure 9.
Insulating Circular Dampers in Round
Metal Duct
Insulate ductwork as shown in Figure 10. All metal must be
covered to prevent condensation. Care must be taken not
to obstruct the shaft from rotating when insulating. Do not
insulate the zone damper actuator.
Installing Circular Dampers in
Flexible Duct
1.
Slide flexible duct two to three inches over the damper
pipe past the damper rib as shown in Figure 11.
2.
Fasten duct to damper with a nylon duct strap,
screwing the strap to the pipe to prevent the duct from
slipping off. Screws installed more than one inch from
either end may obstruct damper rotation.
3.
Seal completely around the duct with metal duct tape
or mastic to prevent any air leakage.
4.
Check the damper blade operation for obstructions by
holding the manual release button and rotating damper
shaft CCW (Open) and CW (Closed) - 3 wire only. See
Figure 4.
5.
Support the damper to joist within six inches on both
sides of the damper as shown in Figure 12.
Insulating Damper Actuators
Insulate the damper as shown in Figure 12. All metal must
be covered to prevent condensation. When insulating, care
must be taken not to obstruct the shaft from rotating. Do
not insulate the zone damper actuator.
Damper Installation cont.
Support with wide
steel strap
1-1/2’’ or 2’’ if in unconditioned space
Do not insulate
damper actuator
Figure 12: Supporting and Insulating Circular Damper
Flexible duct
Clamp with duct strap. Install screw no farther
than 1” from either end of damper
Slide duct 2-3’’ past
damper end rib
Air Flow
Figure 11: Attaching Flexible Duct to Damper
Three screws sealed
with duct tape or mastic
Manual release button
Air Flow
Figure 9: Taping Round Duct to Circular Damper
Do not insulate
damper actuator
1-1/2" or 2" if in unconditioned space
Support with
wide steel strap
Figure 10: Supporting and Insulating Circular Damper