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6
If you have questions, call 800.GE.CARES or visit our Website at: www.GEAppliances.com
REMOVE PACKAGING
Open the carton and remove parts package.
Check contents to be sure all pieces are
present. (The parts package may be attached
to the power cord.)
Remove the shipping materials. Remove the
carton and set aside. The carton can be used
as a pad when changing or adjusting vent
direction.
Installation Downdraft Vent
Instructions System
BEFORE YOU BEGIN
Read these instructions completely and
carefully.
•
IMPORTANT — Save these
instructions for local inspector’s use.
•
IMPORTANT — Observe all
governing codes and ordinances.
• Note to Installer – Be sure to leave these
instructions with the Consumer.
• Note to Consumer – Keep these
instructions for future reference.
• Note – This appliance must be properly
grounded.
• Proper installation is the responsibility of
the installer.
• Product failure due to improper installation
is not covered under the Warranty.
TOOLS YOU WILL NEED
Flat-blade screwdriver
Jig saw
Ductwork to suit
the installation
Carpenter square
PARTS INCLUDED
Remote raise/lower assembly (for 36″ models only)
Stabilizing brackets
(all models) (4)
Wire box (2)
and screws (4)
Plastic strain
relief (2)
Wire and white
connector (1)
Switch cover
plate (1)
Attachment
bracket (1)
Pliers
Duct tape
Page 2
7
Installation Instructions
DIMENSIONS AND CLEARANCES
CAUTION — Wall coverings, countertops and
cabinets should withstand 200°F. heat generated by
any cooktop.
A B
30″ Models 30″ 281⁄4″
36″ Models 36″ 333⁄4″
A
B
2″
8
1
⁄2″
3
1
⁄8″
33⁄8″
10
1
⁄2″
71⁄8″
71⁄2″
3
3
⁄4″
2
1
⁄4″
6
1
⁄4″
WARNING!
INSTALLATION SAFETY
INSTRUCTIONS
TO REDUCE THE RISK OF FIRE, ELECTRIC
SHOCK, OR INJURY TO PERSONS, OBSERVE
THE FOLLOWING:
Installation work and electric wiring
must be done by qualified person(s)
in accordance with all applicable codes
and standards, including fire-rated
construction.
Ducted fans must always be vented to
the outdoors.
When cutting or drilling into wall or
ceiling, do not damage electrical wiring
and other hidden utilities.
WARNING — To reduce the risk of
fire, use only metal ductwork.
C
B
A
IMPORTANT: These vents are
recommended for island installations.
Against-the-wall installations are
limited due to countertop depth
requirements. The vent and cooktop
combined depth requires an extra
deep flat countertop surface.
The countertop must be at least 26″ deep
with a flat surface area of 23
1
⁄2″ or more, front
to back. (NOTE: JGP932S, JP350SC, JP930SC
and JP938SC require 23
5
⁄8″ flat surface area.)
In addition, other clearances to the front
edge of the countertop must be considered.
• See specific cutout illustrations with your
cooktop model to determine requirements.
• A countertop with
a raised lip or rolled
front edge may not
allow enough flat
area for installation.
Flat surface
area
24″
27″
Page 3
Installation Instructions
8
ADVANCE PLANNING
DUCTWORK
Prepare ductwork to vent to the outdoors.
• Use the shortest and straightest duct run
possible.
The maximum permissible length for duct
run is 150 feet.
Refer to Duct Fittings chart to calculate
equivalent length for various duct
configurations.
• The downdraft blower system is designed
to use 3
1
⁄4″ x 10″ ductwork. It can be
transitioned to 6″ round.
• Ductwork MUST be vented to the outside—
never into a crawl space, attic or other
enclosed space.
• Determine the need for a wall cap or roof
cap. Purchase the cap in advance from
your home building center or plumbing
supply.
CLEARANCES
• Installation must conform with local codes.
• The downdraft system with blower, motor
and duct work will occupy the cabinet
below the countertop and cooktop.
• The blower/motor assembly can be located
below the cabinet floor. The assembly will
fit between 16″ floor joists.
In this installation a transition to 6 ″ round
is required.
• The blower motor assembly can also be
installed outdoors. Order JXBC67 for
remote blower installations outdoors.
• Refer to Dimensions and Clearances for
information on appropriate placement
and necessary clearances when planning
installation.
• Refer to your specific cooktop installation
instruction for other appropriate clearances.
• Avoid placing cabinetry directly above the
cooking surface when possible.
• If cabinetry is used above the cooking
surface:
Installation must conform with local codes.
Use cabinets no more than 13″ deep.
Maintain 30″ minimum clearance between
cooktop and unprotected cabinets directly
above cooktop.
If clearance is less than 30″, protect cabinet
bottoms with flame-retardant millboard at
least 1/4″ thick or gypsum board at least
3/16″ thick covered with 28 gauge sheet
steel or .02″ thick copper.
Clearance between cooktop and protected
cabinetry must not be less than 24″.
EXCEPTION: Installation of a listed
microwave oven or cooking appliance over
the cooktop shall conform to the installation
instructions packed with that appliance.
• Working areas adjacent to the cooktop
should maintain 18″ minimum clearance
between countertop and cabinet bottom.
COOKTOP ELECTRICAL AND
GAS LOCATION
Plan the placement of the electrical outlet
and gas (if used) carefully. Gas or electrical
outlets cannot be placed on the back wall of
the cabinet because it may interfere with the
downdraft plenum.
Install a standard electrical outlet within
reach of the vents’ 2 foot long power cord.
• The vent and a gas cooktop combination
can operate from the same 120V standard
duplex outlet.
• Electric cooktops must operate from
a separate 240V junction box.
REMOTE SWITCH
(for 36″ models only)
The downdraft vent has a separate
raise/lower switch. Plan to install the switch
in a convenient location outside of the
vent/cooktop cutout.
Page 4
9
Installation Instructions
Base
cabinet
INSTALLATION POSSIBILITIES
When the kitchen design calls for an against
the wall installation, move 24″ deep base
cabinet forward, 3″ to 5″. Filler panels can
be angled or flat to fill the space between
adjacent cabinets.
Maintain cutout clearances to front edge as specified.
In an island or peninsula, the countertop can
be extra deep to provide seating opposite of
the cooktop. Adding base cabinets on each
side of the cooktop provides extra storage
and countertop work space.
Filler
panel
Filler
panel
Base sink
30″ Min. for JVB37
36″ Min. for JVB67
18″
Base to sink
30″ to 42″
Cover
panel
Countertop
overhang
per cooktop
clearances
must be
maintained
End
panel
18″
Page 5
30″ COOKTOP/DOWNDRAFT
UNIT JVB37
NOTE: Before you begin, measure and mark
Dimension 3 to ensure that adequate flat
countertop surface is available.
Identify the cutout illustration for the cooktop
model you are installing with this downdraft
vent system.
• Draw lines on the countertop to follow
as a cutting guide.
• Make sure sides of the opening are
parallel and rear and front cuts are exactly
perpendicular (right angle) to sides.
Planning Installation 30″ Electric and Gas Cooktops with Downdraft Vents Preparing Cutout
Overall Cooktop Surface Surface Depth Minimum Setback Combined Combined
Model No. Width Overall Depth with Downdraft* Cutout to Front Edge** Cutout Width Cutout Depth
JP326 30-1/4″ 21-1/4″ 23-3/8″ 2-1/2″ 28-1/2″ 22-3/8″
JP340
JP350
29-3/4″ 20-7/8″ 23″ 2-1/2″ 28-1/2″ 22-1/4″
JP930
JP931
JP938
JP939
JP350SC
JP930SC 29-7/8″ 21-1/2″ 23-5/8″ 2-1/2″ 28-1/2″ 22-3/8″
JP938SC
JGP328
JGP933 30″ 21″ 23-1/8″ 2-1/2″ 28-1/2″ 22-3/8″
JGP933S
JGP336 30″ 21″ 23-1/8″ 2-1/2″ 28-1/2″ 22-1/4″
JGP932 29-3/4″ 21″ 23-1/8″ 2-1/2″ 28-1/2″ 22-1/4″
JGP930S 30″ 21-1/4″ 23-3/8″ 2-1/2″ 28-1/2″ 22-1/4″
JGP932S 29-7/8″ 21-5/8″ 23-3/4″ 2-1/2″ 28-1/2″ 22-5/8″
**Includes 1/8″ gap between cooktop and vent trim
**Required to maintain UL or AGA approvals
654321
10
Installation Instructions
INSTALLING THE DOWNDRAFT VENT SYSTEM
21⁄8″
8
1
⁄2″
1
2
3
4
5
6
Page 6
Planning Installation 36″ Electric and Gas Cooktops with Downdraft Vents Preparing Cutout
Overall Cooktop Surface Surface Depth Minimum Setback Combined Combined
Model No. Width Overall Depth with Downdraft* Cutout to Front Edge** Cutout Width Cutout Depth
JP626 35-1/2″ 21″ 23-1/8″ 2-1/2″ 34″ 21-1/8″
JP960
JP961
JP968
JP969
36″ 20-3/8″ 22-1/2″ 2-1/2″ 34″ 21-3/4″
JP960S
JP968S
36-1/8″ 21″ 23-1/8″ 2-1/2″ 34″ 21-7/8″
JGP628
JGP963 36″ 21″ 23-1/8″ 2-1/2″ 34″ 21-7/8″
JGP963S
JGP636 36″ 21″ 23-1/8″ 2-1/2″ 34″ 21-7/8″
JGP960S 36″ 21-1/4″ 23-1/8″ 2-1/2″ 34″ 22-7/8″
JGP962 36″ 20-7/16″ 22-9/16″ 2-1/2″ 34″ 21-3/4″
JGP962S 36-1/8″ 21-1/16″ 23-3/16″ 2-1/2″ 34″ 22-1/8″
**Includes 1/8″ gap between cooktop and vent trim
**Required to maintain UL or AGA approvals
654321
11
Installation Instructions
36″ COOKTOP/DOWNDRAFT
UNIT JVB67
NOTE: Before you begin, measure and mark
Dimension 3 to ensure that adequate flat
countertop surface is available.
Identify the cutout illustration for the cooktop
model you are installing with this downdraft
vent system.
• Draw lines on the countertop to follow
as a cutting guide.
• Make sure sides of the opening are
parallel and rear and front cuts are
exactly perpendicular to sides.
21⁄8″
8
1
⁄2″
1
2
3
4
5
6
Page 7
12
Installation Instructions
INSTALLING THE DOWNDRAFT VENT SYSTEM
POWER SUPPLY
This downdraft vent must be supplied with
120V, 60Hz., and connected to an individual,
properly grounded branch circuit, protected
by a 15 or 20 ampere circuit breaker or time
delay fuse.
Gas Cooktops
If this vent is installed in combination with a
gas cooktop, it may operate from the same
duplex outlet.
Electric Cooktops
If this vent is installed in combination with an
electric cooktop, the vent must operate from
a separate 120V outlet.
A properly grounded 3-prong receptacle
should be located within reach of the vents’
2 foot power cord.
• Locate the receptacle inside the cabinet on
the right side wall. The receptacle cannot
be placed on the back of the cabinet wall
where it may interfere with the downdraft
plenum. See illustration.
NOTE: Do not use an extension cord or
adapter plug with this appliance. Follow
National electrical codes or prevailing local
codes and ordinances.
Electrical outlet
12″ above
cabinet floor
34″ for 36″ models
28
1
⁄2″ for 30″ models
Do not leave gas or electrical
connections within shaded area.
291⁄2″
Page 8
Installation Instructions
13
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 Duct Equivalent Duct Equivalent
Pieces Length* Pieces Length* Pieces Length*
31⁄4″ x 10″
to 6″ Round
6″ Round 1 ft. (per 31⁄4″ x 10″ Transition
12 ft.
Straight foot length) 45° Elbow
5 ft.
90° Elbow
6″ Round
31⁄4″ x 10″ 1 ft. (per 31⁄4″ x 10″ Wall Cap 21 ft.
Straight foot length) 90° Flat Elbow
24 ft.
with Damper
6″ Round 31⁄4″ x 10″
6″ 15 ft. to 31⁄4″ x 10″ 7 ft. Wall Cap 27 ft.
90° Elbow Transition with Damper
31⁄4″ x 10″
6″ to 6″ Round 5 ft. 6″ Round
45° Elbow
9 ft.
Transition Roof Cap
20 ft.
6″ Round
to 31⁄4″ x 10″
31⁄4″ x 10″ Transition
20 ft.
6″ Round
90° Elbow
16 ft.
90° Elbow Roof Vent
24 ft.
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.
Page 9
14
Installation Instructions
INSTALLING THE DOWNDRAFT VENT SYSTEM
VENTING OPTIONS
Side-to-Side Adjustments
The entire blower mounting plate can be
adjusted 3
1
⁄2″ to the left or right. This will help
to align vent discharge to house ductwork.
Discharge Direction
The blower assembly may be removed and
turned 90° for a left or right side discharge.
• The downdraft vent is shipped with the
discharge outlet pointing straight down
and can be changed to the left or right side.
• A left or right 90° direction adjustment
should be performed before dropping into
the countertop opening.
• Flatten the shipping box to use as a pad.
• Lay the vent on its back onto the pad.
To Change to a Left or Right Discharge
Remove the 4 screws holding the blower
to the mounting plate assembly. Retain
screws.
Remove the blower assembly, turn it
over to access the 4 nuts holding the
blower to the mounting plate. Remove
the nuts.
IMPORTANT: Do not lift the motor
by the power cable.
Turn the blower to the left or right
discharge direction and reinstall the 4
nuts.
Reinstall the blower and mounting plate
with original screws.
To Locate the Ductwork Holes in the Cabinet
Floor or Side Walls
Temporarily, put vent into the countertop
opening.
Push the vent all the way to the back of
the opening.
If you are transitioning to 6″ round,
place transition (obtained locally) over
the discharge outlet.
• Mark the location and remove the
assembly.
• Cut holes and install ductwork
connections.
Order JXRB67 for installation of the blower
and motor below the floor.
Order JXBC67 for installation of the blower
and motor outdoors.
3
2
1
4
3
2
1
Loosen screws to adjust
blower left to right
Discharge down
(as supplied)
Discharge right
Discharge left
Page 10
15
Installation Instructions
INSTALL THE DUCTWORK
Use minimum 26″ gauge galvanized or
24 gauge aluminum duct 3
1
⁄4″ x 10″ or
6″ round. PVC duct should be used if
installing under a poured concrete slab.
DO NOT USE flexible ducting.
• Always use appropriate roof or wall
cap with damper. Laundry type wall
caps should never be used. See the
Ductwork Length and Duct Fittings
chart.
• Use the straightest duct run possible.
• For satisfactory performance the duct
run should not exceed 150 feet or its
equivalent length when bends or
various fittings are used. Refer to the
table of equivalent lengths to calculate
your installation.
• Install ductwork so the piece of duct
nearest the downdraft unit slots INTO
the next piece of the duct. Secure the
joints with self-tapping screws and
apply duct tape around the joints to
ensure an airtight seal.
2
INSTALL THE DOWNDRAFT VENT
Place the downdraft vent into the
countertop cutout, against the back side.
Secure the downdraft to the countertop
supplied brackets. See illustration.
Fasten 2 brackets to vent side and secure
to cabinet back wall.
Install 2 brackets on the bottom of the
vent. Attach brackets to slide screws on
the vent and to the floor using wood
screws (not supplied).
When installing in a tile countertop
surface, it may be necessary to apply
a locally approved caulking to cover
any gaps.
C
B
A
1
Airflow
Screw
Duct tape over
seam and screw
Secure the lower brackets
to blower housing
Preferred
method
Secure
the upper
brackets
with screws
located on
the side
of case
and attach
to back of
cabinet
Page 11
INSTALL THE RAISE/LOWER
SWITCH
NOTE: Step 3 is for 36″ models only.
Skip this step if installing a 30″ model.
NOTE: Determine the location for the
Raise/Lower switch. The wiring lead is
68″ long.
Drill a 3/8″ hole into the desired
location. Use the mounting bracket
as a template to locate the hole
accurately. Check for interference
between the switch cover, adjacent
objects and cooktop/vent overlaps.
If switch is mounted into a tile
surface, drill the hole between tiles.
Use locally approved caulking to
cover any gaps.
Center the mounting bracket over the
hole and mark pilot holes. Remove
and drill holes according to type of
countertop.
Mount the metal switch bracket
with screws (not provided). Choose
screws for your type of countertop
or use locally approved adhesive.
D
C
B
A
3
16
Installation Instructions
INSTALLING THE DOWNDRAFT VENT SYSTEM
WARNING — Disconnect electrical
power from the unit before beginning switch
installation. Failure to do so could result in
personal injury or damage to the electrical
controls.
Remove protective film from the top of
the switch trim.
Peel film from the adhesive strips on the
back of the switch trim. Thread the wire
lead through the mounting bracket and
countertop. Press trim over the mounting
bracket to set the adhesive.
Connect Raise/Lower Wire Lead to Wire Box
Thread wire end with the connector
through the hole on the end of a wire
box. Pull approximately 3″ additional
wire length beyond the open end of
the box.
Connect the mating wire connectors.
Install the wire box onto the bottom of
the countertop or directly behind the
switch. Use screws or adhesive
appropriate for the type of countertop.
Place plastic strain relief over the wire,
just outside of the hole at the end of the
wire box. Do not pinch or twist the wire.
Snap the strain relief closed and press
into the hole.
Connect Wire Lead to Control Box
Thread the long 68″ wire lead through
the end of the other wire box.
Push wire leads into the white connector
provided.
Push wire connector into the mating
connector on the control box. Install the
wire box onto the end of the control box
with screws provided.
Place plastic strain relief over the wire,
just outside of the hole at the end in the
wire box. Do not pinch or twist the wire.
Snap the strain relief closed and press
into the hole.
Coil the excess wire and position away
from moving parts and cabinet contents.
E
D
C
B
A
D
C
B
A
F
E
Trim
Mounting
bracket
3/8″ Hole
Raise/Lower
switch
2 Pin
connector
Strain relief
Pull 3″
length
out of
box
Control box
Page 12
OPTIONAL KITS
JXRB67 optional accessory for indoor remote
location of the blower/motor assembly. Use
this kit when the blower and motor assembly
will be located below the cabinet floor.
JXBC67 optional outdoor cover accessory
for remote installation of blower and motor
assembly on an outside wall.
17
Installation Instructions
CONNECT THE POWER
Plug power cord into a properly grounded
receptacle.
4
INSTALL THE COOKTOP
• With the downdraft in the “down” position,
place the cooktop into the cutout.
• Push the cooktop back until the back edge
of the cooktop just barely touches the front
edge of the downdraft cover.
• Using a dime as a thickness gauge, align
the cooktop so that there is a minimum
uniform gap of 0.05″ (the thickness of
a dime) between the cooktop and the
downdraft cover.
NOTE: Do not force the downdraft cover to
move rearward when aligning the cooktop.
This may cause the downdraft cover to
impact and damage the cooktop when the
vent is raised and lowered.
NOTES:
• Accurate alignment of cooktop and
downdraft is necessary to ensure that there
is no interference when air vent is raised
and lowered. There should be a gap of
0.05″ (the thickness of a dime) between the
back edge of the cooktop and the front
edge of the downdraft cover.
• Radiant cooktop cannot be flush mounted
when using this downdraft vent.
Mounting
brackets
Page 13
Operating Instructions Safety InstructionsInstallation InstructionsTroubleshooting Tips
Consumer Support
18
Troubleshooting Tips
Save time and money! Review the chart below first
and you may not need to call for service.
Problem Possible Causes What To Do
Fan does not work The vent is not fully extended. • Press the Raise/Lower switch.
The blower control switch • Slide it to the right.
may be in the OFF position.
Vent does not rise Vent not plugged into an outlet. • Plug vent into a 120V power outlet.
Raise/Lower switch did not • Hold switch down for a couple of seconds to
engage lift motor. activate motor.
Circuit breaker may have • Check circuit breaker. Reset if necessary.
tripped.
Remote switch not plugged in. • Check all connections between the remote switch
and vent body.
Before you call for service…
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