Advertisement
JVB98SH – GE Profile
36" Telescopic Downdraft System
™
Venting Duct Information
DUCTWORK LENGTH AND DUCT FITTINGS
NOTE: Do not exceed 150 foot maximum permissible equivalent lengths!
Flexible ducting: If flexible metal ducting is used, all 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.
Add equivalent lengths for all duct pieces and transitions used to ensure that the duct run does not
exceed the maximum 150 feet.
Duct
Equivalent
Pieces
Length*
6" Round
1 ft. (per
Straight
foot length)
" x 10"
3
1
⁄
1 ft. (per
4
Straight
foot length)
6"
12 ft.
90°Elbow
6"
7 ft.
45°Elbow
3
⁄
" x 10"
1
4
14 ft.
90°Elbow
SHOULD NOT EXCEED 150 EQUIVALENT FEET
*Equivalent lengths of duct pieces are based on actual tests conducted by GE Evaluation Engineering
and reflect requirements for good venting performance. See chart for CFM Duct Length.
Specification Revised 7/11
220961
Duct
Equivalent
Duct
Pieces
Length*
Pieces
" x 10"
3
⁄
1
4
8 ft.
45°Elbow
" x 10"
3
1
⁄
4
33 ft.
90°Flat Elbow
6" Round
to 3
⁄
" x 10"
2 ft.
1
4
Transition
" x 10"
3
⁄
1
4
to 6" Round
2 ft.
Transition
6" Round
to 3
⁄
" x 10"
1
4
4 ft.
Transition
90°Elbow
Plan the Ductwork
1. This downdraft blower system is designed for use with 3-1/4" x 10"
ductwork (can be transitioned to 6" round). Two different discharge
directions are available with side-to-side adjustment for the accurate
alignment of ductwork.
2. For best performance: choose the ducting option which allows the shortest
length of ductwork and a minimum number of elbows and transitions.
Check location of floor joists, wall joists, wall studs, electrical wiring or
plumbing for possible interference.
Equivalent
Length*
3
⁄
" x 10"
1
4
to 6" Round
4 ft.
Transition
90°Elbow
6" Round
Wall Cap
24 ft.
with Damper
3
⁄
" x 10"
1
4
Wall Cap
24 ft.
with Damper
6" Round
33 ft.
Roof Cap
For answers to your Monogram,
GE
appliance questions, visit our website at
®
GEAppliances.com or call
GE Answer Center
Right
discharge
Left discharge
(as shipped)
Listed by
Underwriters
Laboratories
GE Profile
or
®
™
service, 800.626.2000.
®
Advertisement
