Installation Preparation; Duct Fittings - Monogram ZV850 Instructions D'installation

DUCT FITTINGS

This Hood Must Use an
" Round Duct. It Can
" " Duct.
Use this chart to compute
maximum 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
extended 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 heaters and
other naturally vented systems.
To minimize the chance of
interruption of such naturally
vented systems, follow the
heating equipment manufacturer's
guidelines and safety standards
such as those published by NFPA
and ASHRAE. When applicable,
install any makeup (replacement)
air system in accordance with
local building code requirements.
Visit GEAppliances.com for available
makeup air solutions.

Installation Preparation

Duct Piece
" "
* Actual length of straight duct plus duct fitting
equivalent. Equivalent length of duct pieces are
based on actual tests conducted by GE Evaluation
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
6" round to
rectangular
Rectangular to 8"
round
3-1/4" x 10"
3-1/4" x 12"
6" round to rectangular
transition 90° elbow
3-1/4" x 10"
3-1/4" x 12"
Rectangular to 6" 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 Equivalent
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
Length