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Fig. DUC-25 - Run flex through opening
3”
(
76mm
)
3
1/2
”
(89mm)
2
1
/
4
”
(57mm)
Fig. DUC-24 - Dimensions
Using a 3” (76mm) hole
saw, drill a hole where the
vent outlet is to be placed
(Fig. DUC-24). The hole
needs to be enlarged in the
direction of the incoming
flexible duct. This is done
by creating a 2 1/4” (57mm)
x 1/2” (13mm) rectangle,
which will allow the Rough-
In Boot to slide easily into
the wall.
For ease of installation, it is recommended to use the 2”
(51mm) flexible duct and vents for retrofit applications. With
the proper preparations, installing vents into finished walls and
ceilings is quick and simple.
Once the hole is finished, run the flexible duct through the
wall/ceiling to the vent outlet. If installed in drywall, care must
be taken when pulling the flex out of the opening (Fig. DUC-25).
Too much force can result in damage to the dry wall.
Installing 2” Vents in Retrofits
The Rough-In Boot needs a little preparation before it can be
mounted to the flexible duct. The corners need to be trimmed
along the score lines of each corner (Fig. DUC-26). This will allow
the Rough-In Boot to be completely hidden with a beauty ring
(Fig. DUC-32).
Fig. DUC-26 - Trim off the 4 corners
The Rough-In Boot is then connected to flexible duct and
mechanically attached with a self tapping screw (Fig. DUC-27).
Fig. DUC-27 - Secure flex to Rough-In Boot
Next the flex is fed back into the wall and Rough-In Boot slid into
the hole (Fig. DUC-28).
Fig. DUC-28 - Feed the flex back into the wall
If being installed in drywall, with the boot seated firmly against
the top, 3 pilot holes need to be drilled for 1/4” (6.7mm) drywall
anchors (Fig. DUC-30).
In drywall applications, 3 drywall anchors (1/4” or 6.7mm) should
be used to secure the Rough-In Boot to the wall (Fig. DUC-31).
The Rough-In Boot is placed
at the top of the hole; top is
the opposite side of the cut out
rectangle (Fig. DUC-41).
Fig. DUC-29 - The Top
Fig. DUC-30 - Pre-drill for anchors
Fig. DUC-31 - Anchors
The vent plate can now be attached to the Rough-In Boot. Be
sure vents are turned all the way counter-clockwise, to the fully
open position.
Once drywall anchors are installed, screw down the Rough-In
Boot and secure it in place.
Module DUC
Installing Plenum and Branch Duct (7/9)
Module DUC Installing Plenum and Branch Duct (7/9)
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