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Installation Instructions
STEP 3 (continues)
Plenum Installation
2. Install Inside Wall Plenum Half
• Apply caulk to both sides of all four corners of the plenum (Detail B) and any unused holes. Insert Inside Plenum Half
(Part B) into Outside Plenum Half (Part A). Push inside plenum into the wall opening until the flanges of the plenum
are against the wall.
• Once installed, the inside plenum should be securely attached to the frame opening (Detail A). Drive screws through
the vertical sides only to secure the plenum.
• The Inside Plenum Half (Part B) should be caulked on all four sides to provide a water-resistent seal.
Detail B
Apply caulk to all four corners of
the plenum and unused holes
B
STEP 4
Adjust the Divider on Inside Plenum
Loosen the two screws located on the top side of the divider on the
inside of plenum. Slide the top part of the divider toward the outside
until the sealing strip makes contact with the outdoor grille. Tighten the
divider screws to complete the adjustment.
B
B
B
Grille
Divider
Push divider until it
makes contact with
grille
4
Printed in the United States
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