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Installation
30
Plywood backing
The majority of the weight of the
in
stalled ventilation system will be
supported by the lower retaining
plate. It must be firmly attached to
the stud framing behind the drywall.
If studs are not available in the
required locations, a plywood
backing (min. ½" (13 mm) thick)
spanning at least two studs must be
installed.
Failure to adequately support the
weight as stated may result in the
ventilation system falling off the wall,
causing personal injury and property
damage.
If plywood backing is not needed,
proceed to the included "Installation
diagram".
To install a plywood backing
Determine and mark the location of
the retaining plate for the canopy
as outlined on the "Installation
diagram".
Mak
e a cutting line 3" (76 mm) above
and 3" (76 mm) below the outline of
the retaining plate.
Find the studs t
o the left and right
of the mounting location by tapping
the wall or using a stud finder.
Mark a ver
tical cutting line along the
center of each stud.
CAUTION: When cutting or drilling
in
to the wall or ceiling, do not
damage electrical wiring and other
hidden utilities.
Remo
ve the drywall between the
cutting lines and replace it with
plywood of a matching thickness
(min. ½" (13 mm) thick). Tape the
joints and refinish the wall.
P
roceed to the enclosed "Installation
diagram" to complete the installation.