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Installation
instructions
ISTEP 11 CONSTRUCT
CEILING
SUPPORT
Plan the Location
of the Hood and Ductwork
, Use a plumb bob to check the location. The
countertop/cooktop
below the hood must be centered
with the hood.
Ceiling
Hood
.......Ducting
Centerline
Front
i
31-3/4" ,:
Align With
Center of ...................
i
Cooktop
_
Cooktop
i
/j
_____________
Countertop
42" Hood Side View
, The hood should extend beyond the front and rear
edge of the cooking appliance.
, The duct in the ceiling must be centered over the
cooktop.
Ceil.ing
i
Hood
i
J......... Ducting
i'-l
Centerline
Mp
i
,
,
1
Align With _36-1/4'i
_"
I
Center of
.................
i
CooktoF
Cooktop
_
........
Counter
54" Hood Side View
Ceiling Support
Structure
, At the hood location, install 2 x 4 cross framing
between ceiling joists as shown. (2x4's are required to
support the weight of the hood.)
EXAMPLE A
12-3/4" (42" Hood)
17" (54" Hood)Install
Cross-Framing
Sgmmetricallg
About
-_
Duct/Cooktop
Centerline
, Arrange cross framing in the ceiling to suit the exist-
ing structure.
, Your ceiling joists will be like one of the following
examples.
I
i
_'Cooktop
Outline
Top View - Ceiling Joists Parallel to Front of Hood
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