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5.
Attach enough vent pipe so that when installed in wall opening
the vent pipe will extend above the ceiling plate by at least 6"
(152 mm).
6.
Two header extensions are attached to the header plate. One
header extension is welded to the header plate and one header
extension is screwed to the header plate. To install header plate
into wall opening remove the header extension that is screwed
to the header plate (2 screws). Insert header plate with attached
4" oval, double wall vent pipe into wall opening.
6" MINIMUM
(152mm)
HEADER ASSEMBLY
BOTTOM OF
NAILING FLANGE
62 3/8"
(1584mm)
Page 12
ROUGH-IN INSTRUCTIONS (continued)
TOP OF FLOOR PLATE
Figure 18
7.
Position header plate at height shown in Figure 18.
8.
Locate rear edge of nailing flange at the back of the 2" x 4"
stud which will center the vent collar in the wall.
9. Locate the angled edge of header plate flush with the top of
the wall opening.
10. Nail header plate to the wall studs.
11. Replace and attach header extension onto header plate with 2
screws.
23813-1-0807
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