Best 639 Handleiding

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3¼” x 10” RECTANGULAR DUCT

WALL CAP INSTALLATION

INSTRUCTIONS

Plan installation carefully. Before installing wall cap, make

sure that birdscreen is in place and bowed outward. Make

sure that birdscreen does not interfere with movement of

damper flap. Refer to Figure 5 and Step 8 under “Mainte-

nance.”

Wall cap accepts 3¼” x 10” duct. Tape all ductwork joints with

duct tape to prevent air and water leaks.

INSTALLATION IN NEW BRICK CONSTRUCTION

1. Cut opening 3½” x 10¼” in sheathing or wall board so that

wall cap will line up easily with duct.

2. Determine thickness of final wall and adjust wall cap and duct

to that cap will be flush with face brick. (Fig. 1)

3. After face brick is installed, nail or screw cap to wall using

holes in wall cap flange.

4. Caulk all around flange with high-quality caulking com-

pound. (Fig. 2)

5. Run ductwork from range hood or fan. Tape all joints with

duct tape.

INSTALLATION IN FRAME CONSTRUCTION

1. Cut opening 3½” x 10¼” in wall so that wall cap will line

up easily with ductwork. (Fig. 3)

2. Nail down siding corners. Trim opening in siding with cas-

ing strips. (Fig. 4).

Product specificaties