GE ZV48SSFSS - Manual (Page 8)

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Advance Planning
DUCT FITTINGS Equivalent Quantity Total
Duct Piece Length* Used Length
10" round
to 8" round 5 ft.
Round, 1 ft.
straight (per foot length)
3-1/4" x 10" 1 ft.
3-1/4" x 12" straight (per foot length)
8" Dia. 17 ft.
90° elbow 10" Dia. 24 ft.
8" Dia. 10 ft.
45° elbow 10" Dia. 14 ft.
3-1¦4" x 12" 15 ft.
3-1/4" x 10" 14 ft.
90° elbow
3-1/4" x 10" 8 ft.
3-1/4" x 12" 9 ft.
45° elbow
3-1/4" x 10" 33 ft.
3-1/4" x 12" 36 ft.
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10" round transition
to 3-1/4" x 10" or
3-1/4" x 12" 9 ft.
3-1/4" x 10" or
3-1/4" x 12" to
10" round transition 6 ft.
10" round to 3-1/4" x 10" 16 ft.
3-1/4" x 12" transition 13 ft.
90° elbow
3-1/4" x 10" 9 ft.
3-1/4" x 12" to 10" round 8 ft.
transition 90° elbow
Round 8" Dia. 32 ft.
wall cap 10" Dia. 41 ft.
with damper
3-1/4" x 10" 24 ft.
3-1/4" x 12" wall cap 26 ft.
with damper
Round 8" Dia. 44 ft.
roof cap 10" Dia. 56 ft.
Use this chart to compute maximum
permissable lengths for duct runs to
outdoors.
Note: Do not exceed maximum permissable
equivalent lengths!
Maximum recommended duct
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Flexible ducting:
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the equivalent feet values in the table
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duct should be straight and smooth
and extended as much as possible.
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Total Duct Run
Note: Any home ventilation system, such as a
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naturally vented systems. To minimize the chance
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published by NFPA and ASHRAE. When applicable,
install any makeup (replacement) air system in
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solutions.
*Actual length of straight duct plus duct
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are based on actual tests conducted
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requirements for good venting performance with any
ventilation hood.
Hoods Are Equipped
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* Hoods are supplied with a 10"
round transition. A locally
supplied transition is required
for other sizes.
Note: Outlet on top of hood is
8-1/8" x 8".