Hood Exhaust - GE JVM3660 Installation Instructions Manual

Installation Instructions
HOOD EXHAUST
NOTE: Read these next two pages only if you plan to vent your exhaust to the
outside. If yon plan to recirculate the air back into the room, proceed to page 6.
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OUTSIDE TOP EXHAUST (EXAMPLE ONLY)
The fbllowing chart describes an example of one possible
ductwork installation.
DUCT PIECES
RoofCap
12 Ft.StraightDuct
(6" Round)
RectangulaFto-Round
Transition Adaptor*
EQUIVALENT
LENGTH
24 Ft.
12 Ft.
x
5 Ft. x
Equivalent l engths of duct piecesare basedon actual tests and
reflect requirements for goodventing performance with anyvent hood.
NUMBER
USED
(1)
(1)
(1)
EQUIVALENT
= LENGTH
24 Ft.
12Ft.
5 Ft.
41 Ft.
Total Length =
* 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.
OUTSIDE BACK EXHAUST (EXAMPLE ONLY)
The following chart describes an example of one possible
ductwork installation.
EQUIVALENT
f ,_ DUCT PIECES LENGTH* x
Wall Cap 40 Ft. x
3 Ft.Straight Duct 3 Ft. x
j 3_A" x 10" Rectangular)
(_ 90° Elbow 10 Ft. x
NUMBER EQUIVALENT
USED = LENGTH
(1) 40 Ft.
(1) 3Ft.
(2) 20 Ft.
Equivalent l engthsof duct piecesare basedon actual tests and
reflect requirements for goodventingperformance with anyvent hood.
Total Length = 63 Ft.
NOTE: For back exbaust, care sbould be taken to align exhaust witb 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