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.
OUTSIDETOP EXHAUST (EXAMPLE ONLY)
The following chart describes an example of one possible
ductwork installation.
EQUIVALENT NUMBER EQUIVALENT
DUCT PIECES LENGTH x USED = LENGTH
RoofCap 24Ft. x
12Ft.StraightDuct 12Ft. x
(6" Round)
Rectangular-to-Round 5 Ft. x
TransitionAdaptor*
Equivalentlengthsof ductpiecesare basedon actualtests and
reflectrequirementsfor goodventingperformancewith anyventhood.
(1)
(1)
(1)
Total Length =
24Ft.
12Ft.
5 Ft.
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 dampeL
OUTSIDE BACK EXHAUST (EXAMPLE ONLY)
The following chart describes an example of one possible
ductwork installation.
[
DUCT PIECES
Wall Cap
EQUIVALENT NUMBER
LENGTH* x USED
40Ft. x (1)
3 Ft.StraightDuct
3W'x 10" Rectangular)
90° Elbow
3 Ft. x (1)
10Ft. x (2)
EQUIVALENT
LENGTH
40 Ft.
3 Ft.
20Ft.
Equivalentlengthsof ductpiecesarebasedonactualtestsand
reflectrequirementsforgoodventingperformancewith anyvent hood.
Total Length = 63 Ft.
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.
4
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