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)
The following chart describes an example of one possible
ductwork installation.
EQUIVALENT NUMBER EQUIVALENT
DUCT PIECES LENGTH x USED = LENGTH
RoofCap
12Ft.StraightDuct
(6" Round)
Rectangular-to-Round
TransitionAdaptod
24Ft. x (1)
12Ft. x (1)
5 Ft. x (1) =
24Ft.
12Ft.
5 Ft.
Equivalentlengthsof ductpiecesarebasedonactualtests and
reflectrequirementsfor goodventingperformancewith anyventhood.
Total Length = 41 Ft.
* IMPORTANT: If a rectangular-to-round uansition adaptor is used, the bottom corners of the damper
will have to be cut to fit, using the fin snips, in order to allow flee movement of the dampeL
OUTSIDE BACK EXHAUST (EXAMPLE ONLY)
The following chart describes an example of one possible
ductwork installation.
DUCT PIECES
EQUIVALENT
LENGTH* x
NUMBER
USED
Wall Cap
3 Ft.StraightDuct
31A"x 10" Rectangular)
40Ft.
3 Ft.
(1)
(1)
EQUIVALENT
LENGTH
40Ft.
3 Ft.
(_ 90° Elbow 10Ft. x (2) = 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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