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4 31-7000138 Rev. 0
Installation Instructions
HOOD EXHAUST
NOTE: Read these next two pages only if you plan to vent your exhaust to the
outside. If you plan to recirculate the air back into the room, proceed to page 6.
OUTSIDE TOP EXHAUST (EXAMPLE ONLY)
EQUIVALENT NUMBER EQUIVALENT
DUCT PIECES LENGTH x USED = LENGTH
Roof Cap 24 Ft. x (1) = 24 Ft.
12 Ft. Straight Duct 12 Ft. x (1) = 12 Ft.
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Rectangular-to-Round 5 Ft. x (1) = 5 Ft.
Transition Adaptor*
Equivalent lengths of duct pieces are based on actual tests and
reflect requirements for good venting performance with any vent hood.
Total Length = 41 Ft.
* IMPORTANT: If a rectangular-to-round transition adaptor is used, the bottom corners of the damper
will have to be cut to fit, using the tin snips, in order to allow free movement of the damper.
The following chart describes an example of one possible
ductwork installation.
The following chart describes an example of one possible
ductwork installation.
NOTE: For back exhaust, care should be taken to align exhaust with space between studs, or wall should be
prepared at the time it is constructed by leaving enough space between the wall studs to accommodate exhaust.
OUTSIDE BACK EXHAUST (EXAMPLE ONLY)
EQUIVALENT NUMBER EQUIVALENT
DUCT PIECES LENGTH* x USED = LENGTH
Wall Cap 40 Ft. x (1) = 40 Ft.
3 Ft. Straight Duct 3 Ft. x (1) = 3 Ft.
( 3
1
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90° Elbow 10 Ft. x (2) = 20 Ft.
Equivalent lengths of duct pieces are based on actual tests and
reflect requirements for good venting performance with any vent hood.
Total Length = 63 Ft.
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