Installation Preparation; Duct Fittings - GE Monogram ZV30H Instructions D'installation

DUCT FITTINGS

This Hood Must Use an
8" Round Duct. It Can
Transition to 3-1/4
or 3-1/4 x 12 Duct.
" "
Use this chart to compute maxi-
mum permissible lengths
for duct runs to outdoors.
NOTE: Do not exceed maximum
permissible equivalent lengths!
Maximum duct length:
100 foot for range hoods.
Flexible ducting:
If flexible metal ducting is used,
all the equivalent feet values in
the table should be doubled.
The flexible metal duct should
be straight and smooth and ex-
tended as much as possible.
DO NOT use flexible plastic
ducting.
NOTE: Any home ventilation
system, such as a ventilation
hood, may interrupt the proper
flow of combustion air and
exhaust required by fireplaces,
gas furnaces, gas water heat-
ers and other naturally vented
systems.
To minimize the chance of
interruption of such naturally
vented systems, follow the heat-
ing equipment manufacturer's
guidelines and safety standards
such as those published by
NFPA and ASHRAE.

Installation Preparation

Duct Piece
x 10
" "
* Actual length of straight duct plus duct fitting
equivalent. Equivalent length of duct pieces are
based on actual tests conducted by GE Evalua-
tion Engineering and reflect requirements for good
venting performance with any ventilation hood.
Dimensions
Round,
straight
3-1/4" x 10"
straight
90° elbow
45° elbow
3-1/4" x 10"
3-1/4" x 12"
90° elbow
3-1/4" x 10"
3-1/4" x 12"
45° elbow
3-1/4" x 10"
3-1/4" x 12"
90° flat elbow
8" round to
rectangular
Rectangular to 8"
round
3-1/4" x 10"
3-1/4" x 12"
8" round to rectangular
transition 90° elbow
3-1/4" x 10"
3-1/4" x 12"
Rectangular to 8" round
transition 90° elbow
Round wall cap
with damper
3-1/4" x 10"
3-1/4" x 12"
Rectangular wall cap
with damper
Round roof cap
5
Equivalent Quantity
Length* Used
1 ft. (per
foot length)
1 ft. (per
foot length)
12 ft.
7 ft.
14 ft.
10 ft.
8 ft.
6 ft.
33 ft.
24 ft.
2 ft.
2 ft.
4 ft.
4 ft.
4 ft.
4 ft.
24 ft.
24 ft.
18 ft.
33 ft.
Total Duct Run
Total
Equivalent
Length