Duct Fittings - Monogram ZV950 Instructions D'installation

DUCT FITTINGS

This Hood Must Use an
8" Round Duct.
It Can Transition to a
3-1/4" x 12" 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 ft. 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 Monogram.com for available
makeup air solutions.
6
Installation Preparation
Equivalent
Duct Piece Dimensions
Round, straight
3-1/4" x 12",straight
90° elbow
45° elbow
3-1⁄4" x 12"
90° elbow
3-1/4" x 12"or
45° elbow
3-1/4" x 12"
90° flat elbow
8" round to
3-1/4" x 12" transition
3-1/4" x 12" to 8"
round transition
8" round to 3-1/4" x 12"
transition 90° elbow
3-1/4" x 12" to 8"
round transition 90° elbow
Round wall cap
with damper
3-1/4" x 12" wall cap
with damper
Round roof cap
* A ctual length of straight duct plus duct fitting equivalent. Equivalent
length of duct pieces are based on actual tests conducted by
GE Appliances Evaluation Engineering and reflect requirements for
good venting performance with any ventilation hood.
Equivalent Quantity
Length* Used
1 ft.
(per foot length)
1 ft.
(per foot length)
17 ft.
10 ft.
43 ft.
26 ft.
102 ft.
2 ft.
5 ft.
6 ft.
13 ft.
32 ft.
75 ft.
44 ft
Total Duct Run
1" = 2.5 cm; 1' = 0.3 m
Total
Equivalent
Length
31-14900 Rev. 2