GE Ventilation Hood JVB34 User Manual
UseandCare& Installation Guide  
Downdraft Vent System  
Problem Solver.................................4  
More questions ?…call  
Safety Instructions.........................2  
GE Answer Center® 800.626.2000  
Operating Instructions, Tips  
Canning.............................................................3  
Controls.............................................................3  
Cooking Tips ....................................................3  
Installation.....................................5–11  
Ductwork Table...............................................8  
Plan Ductwork.................................................8  
Plan Wiring.......................................................9  
Install Ductwork...........................................10  
Install Wiring.................................................10  
Care and Cleaning  
Blower ...............................................................4  
Grease Filter.....................................................4  
Consumer Services  
Warranty ........................................Back Cover  
Models: JVB34  
JVB35  
JVB65  
JVB93  
JVB96  
JVB64  
GE Appliances  
 
SERVICING  
NOTE: BE SURE ELECTRICAL POWER IS  
Disconnect power to the cooktop and remove it first.  
Reverse the steps in the Install the Downdraft section  
to remove the downdraft from the cabinet.  
OFF BEFORE SERVICING THE UNIT.  
It may be necessary to remove the downdraft blower  
system from the cabinet in order to service components  
such as the blower motor or air vent mechanism.  
Service parts are available from your local GE  
distributor or from a GE Service and Parts Center.  
USING YOUR DOWNDRAFT VENT SYSTEM  
Controls  
Turn the downdraft blower  
ON by pressing down on  
the activating switch. The  
air vent will rise.  
Turn the downdraft  
blower OFF by pressing  
the activating switch  
again. The air vent will  
go down and the blower  
will shut off.  
The blower can be ON or  
OFF and its speed can be  
adjusted with the recessed  
knob on the right side of  
the air vent.  
NOTE: For most convenient operation, set the blower  
to your favorite speed. The blower will come on to  
this speed whenever the activating switch is pressed  
and the air vent rises.  
Knob  
CAUTION: Be careful when raising or lowering  
the downdraft. Be sure pots, pot handles and other  
objects are clear of the downdraft cover and cannot  
be struck or tipped by the downdraft being raised.  
• To avoid injury, make sure there are no fingers  
around the downdraft cover when it is lowered.  
• Keep hands and fingers away from all  
downdraft parts.  
COOKING TIPS  
• The high capacity performance of this downdraft  
system can increase the cooking times for some foods.  
It may take longer to reach high cooking temperatures  
if the downdraft is turned on to high right away.  
Adjust the fan speed for best cooking results.  
Canning  
When canning foods in a water-bath canner, a gentle  
but steady boil must be maintained continuously for  
the required time. When canning foods in a pressure  
canner, the pressure must be maintained continuously  
for the required time.  
For best results when heating oil for deep frying or  
when boiling water, use the front surface units or wait  
until the water is boiling or the oil is at frying  
temperatures before turning on the downdraft.  
Use of the blower at a high speed when canning may  
reduce the temperature enough to stop boiling. While  
canning, we recommend using the downdraft at LOW  
speed and using the front surface unit.  
• The downdraft may not completely capture all the  
steam from pans on the front burners.  
3
 
     
CARE AND CLEANING  
Grease Filter  
The efficiency of your downdraft depends on a clean  
filter. Frequency of cleaning depends on the type of  
cooking you do. Grease filters should be cleaned at  
least once a month. Never operate the downdraft  
without the filters in place.  
To remove: Pull the filters out by grasping them and  
pulling straight up.  
To clean: Soak and then agitate in a hot detergent  
solution. Light brushing may be used to remove  
imbedded soil. Rinse, shake and remove moisture  
before replacing.  
NOTE: The filters are different sizes. Be sure to  
With careful handling, the filter will last for years.  
If replacement becomes necessary, order the part from  
your dealer.  
replace them with the longer filter on the left.  
When replacing the filters, the long one goes in the  
left side.  
Blower  
Painted or Metal Surfaces  
1. DISCONNECT THE DOWNDRAFT  
POWER SUPPLY BY REMOVING THE  
POWER CORD FROM THE RECEPTACLE.  
Clean greasy surfaces frequently, using a mild  
detergent. Do not use abrasive cloth, steel wool  
pads or scouring powder because they will mar  
the surface.  
2. Remove the blower cover.  
3. Use a vacuum hose to clean the blower.  
Do not immerse the blower in water.  
Stainless Steel (on some models)  
4. Replace the blower cover.  
Clean with warm sudsy water, a stainless steel cleaner  
such as Kleen King®, or an all-purpose liquid or spray  
cleaner. Always scrub in the direction of the grain.  
Rinse thoroughly with a sponge or cloth and clean  
water. Dry with a soft, clean cloth.  
5. Reconnect the power supply.  
Do not use a soap-filled steel wool pad; it will scratch  
the surface.  
QUESTIONS?  
USE THIS PROBLEM SOLVER  
PROBLEM  
POSSIBLE CAUSE  
FAN DOES NOT WORK  
• The vent must be fully extended before the downdraft will work.  
• The blower control knob must be turned in a clockwise direction to turn  
the blower on.  
If you need more help…call toll free:  
GE Answer Center®  
800.626.2000  
consumer information service  
4
 
     
INSTALLATION INSTRUCTIONS  
Before Starting Installation Check the  
Take Measurements  
Following Requirements  
Refer to the cooktop installation instructions for  
dimensions of cooktop, countertop cut-out, and  
cabinet requirements.  
This downdraft blower system is designed to be  
used to exhaust smoke and odors when cooking  
with all GE electric and sealed burner gas  
cooktops (not approved for standard burner gas  
cooktops). It can be mounted in either an island  
or peninsula location.  
• The 30″ models will fit in most 30″ wide  
cabinets and the 36″ models will fit in most 36″  
wide cabinets.  
• To install a cooktop with this downdraft, the  
cabinet depth must be 26″ minimum.  
Requirements for an approved installation  
• 26″ minimum cabinet depth  
• 26″ minimum from the back of the downdraft  
to the front of the countertop, with  
1
2
• 23 ⁄ ″ minimum FLAT countertop surface  
• Plan the placement of the electrical outlet box  
carefully. It should NOT be installed on the back  
wall of the cabinet because it may interfere with  
the downdraft. It should be installed on a side  
wall or adjacent cabinet. Make sure it is within  
reach of the unit’s 2 ft. long power cord and  
conforms to all local codes.  
26″  
Minimum 26″  
Cabinet depth required  
Install a standard wiring box with a 3-pronged  
outlet.  
A countertop with a raised lip may not allow  
enough flat countertop for a proper installation.  
Before starting installation review the following  
• Plan the location of the gas supply pipe (for  
gas cooktops) carefully to avoid interference  
with the downdraft installation.  
pages carefully.  
Cutout dimension and illustrations are given for  
Specifications  
30″ and 36″ cooktops.  
This unit can be easily installed following these  
basic steps:  
(continued next page)  
• Cut out the countertop opening.  
• Install the downdraft in the cabinet.  
• Connect the ductwork and electrical.  
• Install the cooktop.  
VOLTS  
120  
AMPS  
4.0  
CFM  
500  
DUCT  
1
4
3 ⁄ X 10  
5
 
30″ COOKTOPS/DOWNDRAFT UNITS  
JVB34, JVB35, JVB93  
1
2
3
Figure 1  
Overall Cooktop Dimensions  
Figure 3  
Cutout for Vent  
Figure 2  
Overall Cutout Dimensions  
NOTE: AGAINST-THE-WALL INSTALLATIONS ARE LIMITED DUE TO DIMENSION REQUIREMENTS.  
REFER TO DETAILS BELOW.  
PLANNING INSTALLATION (Note: 26″ deep cabinets required)  
PREPARING CUTOUT  
A B C B&C D  
I
E F  
G
H
(Figure 1) (Figure 1) (Figure 1) (Figure 1)  
(Figure 3*)  
Min. Setback—  
Front Edge  
(Figure 2)  
(Figure 2) (Figure 2) (Figure 3)  
(Figure 3)  
Downdraft  
Cutout Width  
Req’d from  
Centerline  
Cooktop  
Overall  
Width  
Cooktop  
Overall  
Depth  
Depth  
Cktop +  
D.D. Vent  
Min. Req’d.  
Inside Cabinet  
Clearance  
Cooktop  
Cutout  
Width  
Cooktop  
Cutout  
Depth  
Add’l Depth  
Req’d for  
Downdraft  
Vent  
Depth  
Cntrtop to Front  
Edge of Cutout  
Model No.  
JP300  
JP301  
JP310  
JP311  
JP325  
30-1/4″  
21-1/4″  
2″  
23-1/4″  
3-1/2″  
22″  
28-1/2″  
28-1/2″  
19-1/2″  
19-1/2″  
2-7/8″  
27-1/16″  
JP332  
JP333  
30″  
29-3/8″  
30″  
21″  
20-1/2″  
20-3/4″  
21″  
2″  
2″  
2″  
2″  
23″  
22-1/2″  
22-3/4″  
23″  
3-1/4″  
3″  
22″  
2-5/8″  
2-3/8″  
2-5/16″  
2-5/8″  
27-1/16″  
27-1/16″  
27-1/16″  
27-1/16″  
JP343  
JP345  
JP347  
22-1/16″  
22-7/16″  
22″  
28-9/16″ 19-9/16″  
29-1/8″ 19-15/16″  
JP392  
JP393  
2″  
JGP330  
JGP331  
JGP334  
30″  
3-1/4″  
28-1/2″  
19-1/2″  
*Required to maintain UL or AGA approvals.  
6
 
36″ COOKTOPS/DOWNDRAFT UNITS  
JVB64, JVB65, JVB96  
1
2
3
Figure 1  
Overall Cooktop Dimensions  
Figure 3  
Cutout for Vent  
Figure 2  
Overall Cutout Dimensions  
NOTE: AGAINST-THE-WALL INSTALLATIONS ARE LIMITED DUE TO DIMENSION REQUIREMENTS.  
REFER TO DETAILS BELOW.  
PLANNING INSTALLATION (Note: 26″ deep cabinets required)  
PREPARING CUTOUT  
A B C B&C D  
I
E F  
G
H
(Figure 1) (Figure 1) (Figure 1) (Figure 1)  
(Figure 3*)  
Min. Setback—  
Front Edge  
(Figure 2)  
(Figure 2) (Figure 2) (Figure 3)  
(Figure 3)  
Downdraft  
Cutout Width  
Req’d from  
Centerline  
Cooktop  
Overall  
Width  
Cooktop  
Overall  
Depth  
Depth  
Cktop +  
D.D. Vent  
Min. Req’d.  
Inside Cabinet  
Clearance  
Cooktop  
Cutout  
Width  
Cooktop  
Cutout  
Depth  
Add’l Depth  
Req’d for  
Downdraft  
Vent  
Depth  
Cntrtop to Front  
Edge of Cutout  
Model No.  
JP622  
JP623  
35-1/2″  
35-1/2″  
35-1/2″  
21″  
21″  
2″  
2″  
2″  
23″  
23″  
3-1/4″  
3-1/4″  
2″  
22″  
33-7/8″  
33-7/8″  
19-1/16″  
19-1/16″  
2-7/8″  
2-7/8″  
33-1/16″  
33-1/16″  
33-1/16″  
JP681  
21-9/16″  
22-7/16″  
JP692  
JP693  
20-3/4″  
22-3/4″  
34-5/8″ 19-15/16″  
33-7/8″ 19-1/16″  
2-5/16″  
JGP630  
JGP631  
35-1/2″  
21″  
2″  
23″  
3-1/4″  
22″  
2-7/8″  
33-1/16″  
*Required to maintain UL or AGA approvals.  
7
 
INSTALLATION INSTRUCTIONS  
(continued)  
Plan the Ductwork  
Steps to Determine Flexible Ducting’s  
Equivalent Length  
1. Measure the actual amount of offset  
(Maximum 3″ recommended). The effect upon  
airflow is dependent upon the amount of offset.  
Right  
discharge  
2. Calculate the equivalent ducting allowances  
Left discharge  
using:  
( ___ in. offset) x (14 Ft. per inch)  
= ___ Ft. equivalent length.  
Down discharge  
(as shipped)  
3. Ensure that the total equivalent length of  
ducting does not exceed the maximum  
recommendation of 100 feet.  
1. This downdraft blower system is designed  
1
4
for use with 3 ⁄ ″ x 10″ ductwork (can be transitioned  
to 6″ round). Three different discharge  
directions are available with side--to-side  
adjustment for accurate alignment of ductwork.  
Venting Island to Outside Wall  
Wall  
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.  
24″ Power  
Cord provided  
(on-right-hand side)  
1
2
29 / ″  
7″  
1
4
NOTE: The unit is shipped with the 3 ⁄ ″ x 10″  
discharge facing DOWN. See the Changing  
Blower Direction section, if necessary.  
Duct Pieces  
Equivalent Length*  
Duct Pieces  
Equivalent Length*  
1
4
3 ⁄ ″ x 10″  
to 6″ Round  
Transition  
6″ Round  
Straight  
5 ft.  
1 ft. (per foot length)  
6″ Round  
1
4
to 3 ⁄ ″ x 10″  
20 ft.  
12 ft.  
1
4
3 ⁄ ″ x 10″  
1 ft. (per foot length)  
Transition  
90° Elbow  
Straight  
1
4
3 ⁄ ″ x 10″  
to 6″ Round  
Transition  
90° Elbow  
6″  
15 ft.  
90° Elbow  
6″ Round  
Wall Cap  
with Damper  
6″  
21 ft.  
27 ft.  
9 ft.  
16 ft.  
5 ft.  
45° Elbow  
1
4
3 ⁄ ″ x 10″  
1
4
3 ⁄ ″ x 10″  
Wall Cap  
with Damper  
90° Elbow  
1
4
3 ⁄ ″ x 10″  
6″ Round  
Roof Cap  
20 ft.  
24 ft.  
45° Elbow  
1
4
3 ⁄ ″ x 10″  
6″ Round  
Roof Vent  
24 ft.  
7 ft.  
90° Flat Elbow  
SHOULD NOT EXCEED 100 EQUIVALENT FT.  
6″ Round  
to 3 ⁄ ″ x 10″  
Transition  
1
*Equivalent lengths of duct pieces are based on actual tests conducted by  
GE Evaluation Engineering and reflect requirements for good venting  
performance with a downdraft rated at 500 CFM.  
4
8
 
   
Plan the Wiring  
LEFT OR RIGHT DISCHARGE  
Blower  
1. The downdraft blower system draws 4 AMPS  
Nut  
and requires a 120 VAC, 60 Hz circuit.  
Motor plug  
2. The unit has a 2 ft. long power cord with a  
3-pronged plug. Plan to provide a grounded  
outlet in a location which will allow the unit’s  
power cord to reach. The outlet cannot be  
located on a back wall. The outlet needs to be  
mounted on the side wall of the cabinet or it  
could be on the back wall of an adjacent cabinet  
with access through an opening in the side wall.  
(Based on local codes.)  
Clamp  
channel  
Sheet  
metal  
screw  
Cover plate  
1. Remove the 4 nuts and 2 clamp channels.  
Preparation  
Changing Blower Discharge (Optional)  
2. Loosen the screws holding the gear motor  
cover and slide it away from the blower.  
3. Carefully lift the blower and disconnect the  
motor plug if necessary. Reposition the blower  
and reconnect the motor plug.  
The blower is shipped with its discharge facing  
DOWN. Follow these steps ONLY if:  
• The position of the blower discharge needs to  
be moved so the ductwork does not interfere  
with the floor joists, plumbing or wiring below.  
4. Use the supplied cover plate to close any  
open space.  
5. Replace the clamp channels and use the nuts  
• It is necessary to rotate the blower discharge  
to secure the blower in its new position.  
to the RIGHT or LEFT.  
6. Reposition the gear motor covers and tighten  
Place the unit on its back on a table or work  
surface.  
the screws.  
7. Use sheet metal screws through the bottom  
DOWN DISCHARGE–  
flange to secure the bottom of the blower.  
Moving Blower Left or Right  
Sheet metal screw  
(continued next page)  
Blower  
Nuts  
Bottom  
Clamp channel  
flange  
1. Loosen the 4 nuts and 2 clamp channels.  
2. Slide the blower to the desired position.  
3. Use the supplied cover plate to close the open  
space (if any).  
4. Tighten the nuts to secure the top of the blower  
and use the sheet metal screws through the  
bottom flange to secure the bottom of the blower.  
9
 
 
INSTALLATION INSTRUCTIONS  
(continued)  
Install the Downdraft  
Install the Ductwork  
CAUTION- BEFORE CUTTING A HOLE  
IN CABINET FOR DUCTWORK: Check for  
interference with floor joists, wall studs,  
electrical wiring or plumbing.  
Mounting screws  
Leveling bracket–  
flange facing out  
31⁄4″ x 10″  
to 6″ RD.  
Transition  
Leveling bracket–  
flange facing in  
Blower  
Collar  
6″ RD.  
Elbow &  
ductwork  
Screws  
1. Set the downdraft into the opening. Extend  
the leveling brackets to the floor of the cabinet  
so the downdraft sits straight. (NOTE: Leveling  
brackets can be removed and re-attached in  
other positions. The bottom flange may have to  
face inward in tight cabinet installations.)  
2. Secure the downdraft to the countertop  
as follows: Hold the downdraft against the back  
of the countertop cut-out and tighten the 2  
mounting screws (one on each end of unit) on  
the underside of the countertop. Use a wood  
shim between the screw and the underside of  
granite countertops.  
1. Cut the hole in the cabinet as well as holes in  
the wall or floor as necessary.  
2. Mount the roof or wall cap and work back  
towards the cabinet, attaching all ductwork,  
elbows and transitions as previously planned.  
Tape all ductwork connections to make them  
secure and air tight.  
3. Connect the ductwork (and transition,  
if required) to the downdraft. If necessary,  
LOOSEN wing nuts and screws that hold the  
blower in place, and slide the blower left or right  
to meet the ductwork. Re-tighten the screws and  
wing nuts.  
3. Screw the leveling brackets to the bottom of  
the cabinet. Tighten the screws holding the  
leveling bracket to the unit on each side.  
1
4
NOTE: A 3 ⁄ ″ x 10″ collar is provided for  
installers who prefer to rivet the cutwork to the  
unit. This will allow the blower to be removed  
and replaced easily in service situations without  
disturbing the ductwork.  
Install the Electrical Wiring  
1. Mount a standard wiring box, with  
3-pronged outlet, inside the cabinet. Make sure  
the downdraft’s power cord can easily reach it.  
2. Run the appropriate power cable into the  
cabinet and connect it to the outlet.  
3. Plug the downdraft’s power cord into  
the outlet.  
10  
 
   
Install the Cooktop  
Adjust the Switch  
1. Align the cooktop with the downdraft and  
The downdraft is factory-adjusted for proper  
operation. However, shipping and handling may  
affect the positions of the activating switch.  
fasten cooktop in place.  
NOTE: Accurate alignment of cooktop and  
downdraft is necessary to ensure that there is  
not interference when air vent is raised and  
lowered. There should be a gap of 1/32″–1/16″  
between the back of the cooktop and the front of  
the downdraft cover.  
To adjust position of activating switch:  
WARNING: To avoid possible electrical  
shock, personal injury or death—  
disconnect electrical power.  
1. If the downdraft is plugged into the electrical  
outlet, unplug it.  
2. Lift the air vent straight up and cock it slightly  
so it remains in the UP position.  
Switch membrane  
Screws  
Switch  
bracket  
Switch  
cover  
3. Remove the switch cover from the right end  
of the air vent.  
4. Loosen the 2 screws holding the switch  
bracket in place. Position the switch bracket so  
that the activating switch just comes in contact  
with the underside of the switch membrane.  
Tighten the screws.  
5. Replace the switch cover, gently lower the  
air vent into the chimney, and plug in the power  
cord. Re-connect the electrical power and check  
operation.  
11  
 
Staple sales slip or cancelled check  
here. Proof of original purchase date  
is needed to obtain service  
under warranty.  
YOUR DOWNDRAFT SYSTEM  
WARRANTY  
FULL ONE-YEAR WARRANTY  
For one year from date of original  
This warranty is extended to  
WHAT IS COVERED  
the original purchaser and any  
succeeding owner for products  
purchased for ordinary home use in  
the 48 mainland states, Hawaii and  
Washington, D.C. In Alaska the  
warranty is the same except that it is  
LIMITED because you must pay to  
ship the product to the service shop  
or for the service technician’s travel  
costs to your home.  
purchase, we will provide, free of  
charge, parts and service labor in  
your home to repair or replace  
any part of the downdraft system  
that fails because of a  
manufacturing defect.  
All warranty service will be  
provided by our Factory Service  
Centers or by our authorized  
Customer Care® servicers during  
normal working hours.  
Should your appliance need  
service, during warranty period  
or beyond, call 800-GE-CARES  
(800-432-2737).  
• Service trips to your home to  
teach you how to use the product.  
• Replacement of the replaceable  
filters.  
WHAT IS NOT COVERED  
Read your Use and Care material.  
If you then have any questions  
about operating the product,  
please contact your dealer or our  
Consumer Affairs office at the  
address below, or call, toll free:  
• Replacement of house fuses or  
resetting of circuit breakers.  
• Failure of the product if it is used  
for other than its intended  
purpose or used commercially.  
• Damage to product caused by  
accident, fire, floods or acts  
of God.  
®
GE Answer Center  
800.626.2000  
consumer information service  
WARRANTOR IS NOT  
• Improper installation.  
RESPONSIBLE FOR  
If you have an installation  
CONSEQUENTIAL DAMAGES.  
problem, contact your dealer or  
installer. You are responsible for  
providing adequate electrical,  
exhausting and other connecting  
facilities as described in the  
Installation Instructions provided  
with the product.  
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion  
may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.  
To know what your legal rights are in your state, consult your local or state consumer affairs office or your state’s Attorney General.  
Warrantor: General Electric Company  
If further help is needed concerning this warranty, write:  
Manager—Consumer Affairs, GE Appliances, Louisville, KY 40225  
JVB34  
JVB35  
JVB93  
JVB64  
JVB65  
JVB96  
Part No. 164D3333P139  
Pub No. 49-8904  
99 04 2007B  
3-98 CG  
Printed in the United States  
 

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