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3
Installation Instructions
STEP 4
Plenum Installation
NOTES:
• A properly sized header and rough in framing must
conform to all national and local building codes.
• Before caulking and permanent attachment, dry
fit plenum into the rough opening to check for fit,
squareness and level.
Caulk the wall plenum on
the rough opening side of
the wall plenum flange.
Proper Header*
Direction of installation
Proper Flashing*
Proper Flashing*
Building rough
opening
Outside
Wall
Proper Caulking*
Direction of installation
Proper Caulking*
Proper Header*
Building
rough
opening
* Field Supplied Parts
STEP 3
Install Grille Kit RAVAL3 (not included) on the Outside Plenum
NOTE: The Grille Kit RAVAL3 is best installed onto the
Outside Plenum (Part A) prior to the wall plenum being
installed into the building. Grille installation is easier
at this point and will help keep the wall plenum square
during installation.
If you are not installing the grille at this time be sure the
plenum is square when installed in the opening and do
not remove the weather cover.
NOTE: Refer to instructions included in the Grille
Kit RAVAL3 for proper installation procedure.
Part A Outside
Wall Plenum
RAVAL3
RAVAL3
Side View
Part A Outside
Wall Plenum
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