Monogram ZVB36, ZVB30, JXBC57 Installation Instructions Manual

Installation
Instructions

If you have questions, call 800-GE-CARES or visit our website at: www.monogram.com

Downdraft Vent Systems

36" Wide Models:
ZVB36

30" Wide Models:
ZVB30

Monogram.

®

We bring good things to life.

CAUTION

WARNING

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 with your Owner’s Manual for future reference.

This appliance must be properly grounded. See “Power Supply”, page 10.

If you received a damaged vent, you should
immediately contact your dealer or builder.

Proper installation is the responsibility of the
installer. Product failure due to improper
installation is not covered under the GE
Appliance Warranty. See the Owner’s Manual
for warranty information.

For Monogram local service in your area,
1-800-444-1845.
For Monogram service in Canada,
1-888-880-3030.
For Monogram Parts and Accessories, call
1-800-626-2002.

www.monogram.com

WARNING:
To reduce the risk of fire, electric shock, or
injury to persons, observe the following.

A. Use this unit only in the manner intended

by the manufacturer. If you have questions,
contact the manufacturer.

B. Before service or cleaning unit, switch

power off at service panel and lock the
service disconnecting means to prevent
power from being switched on accidentally.
When the service disconnecting means
cannot be locked, securely fasten a promi­nent warning device, such as a tag, to the
service panel.

• Do not attempt to repair or replace any part
of the downdraft system unless it is specifi­cally recommended in this book. All other
servicing should be performed by a quali­fied technician.

• For general ventilating use only. Do not use
the exhaust hazardous or explosive materials
and vapors.

• Installation work and electrical wiring must
be done by a qualifed person(s). In accor­dance with all applicable codes and stan­dards including fire-rated construction.

To reduce the risk of fire and to properly
exhaust air, be sure to duct air outdoors. Do
not vent exhaust air into spaces within walls or
ceilings or into attics, crawl spaces or garages.

WARNING: TO REDUCE THE RISK OF
FIRE, USE ONLY METAL DUCTWORK.

Do not attempt to repair or replace any part
of the downdraft system unless it is specifically
recommended in this book. All other servic­ing should be performed by a qualified
technician.

Contents

2

Design Information

Models Available ........................................................... 3

Accessories ..................................................................... 3

Product Dimensions ..................................................... 3

Advance Planning ..................................................... 4, 5

Installation Preparation

Cutouts for Monogram Cooktops ...................... 6, 7, 8

Clearances...................................................................... 9

Tools and Materials Required...................................... 9

Parts Supplied ............................................................... 9

Remove Packaging ...................................................... 10

Power Supply ............................................................... 10

Venting Options .................................................... 11, 12

Ductwork

Duct Fittings ................................................................ 13

Installation

Step 1, Install Downdraft Vent ................................... 14

Step 2, Install the Ductwork ....................................... 14

Step 3, Install Raise/Lower Switch ............................ 15

Step 4, Connect Power ............................................... 16

Step 5, Install Filters, Check Operation.................... 16

Cleaning ....................................................................... 16

Accessories

JXRB57 Kit for Indoor Remote Blower Locations ... 17
JXBC57 Kit for Outdoor Remote Blower Locations 20

Design Information

2-1/4"

3-1/4"

7"

12-3/8"

5-3/8"

3-1/4"

7-1/2"

6-3/8"

2"

8-1/2" Lift

Downdraft Vent Systems

Models
Available

Accessories

Product
Dimensions

These downdraft vents systems can be
retracted when not in use.

1

1

8

8

7

6

5

8

7

8

2

2

7

7

3

3

6

6

4

4

5

5

UNIT ON

1

8

2

7

ZVB36

1

2

3

4

1

2

36" Wide Downdraft Vent
in white, black and stainless steel

• JXRB57 optional accessory for indoor
remote location of the blower/motor
assembly. Use this kit when the blower and
motor assembly will be located outside or
below the cabinet floor.

30" Models 30" 28-3/8"
36" Models 36" 33-3/4"

A

ZVB30
30" Wide Downdraft Vent
in white, black and stainless steel

• JXBC57 optional outdoor cover accessory
for remote installation of blower and motor
assembly on an outside wall.

AB

1

1

2

3

1

2

3

4

1

8

8

7

6

4

5

8

7

6

5

8

2

2

7

7

3

3

6

6

4

4

5

5

UNIT ON

1

8

2

7

3

6

4

5

B

14-3/4"

27"

26"

3

Design Information

Base

Cabinet

Filler Panel

Base Sink
BS30 Min. For ZVB30
BS36 Min. For ZVB36

Filler Panel

Maintain Cutout Clearances

to Front Edge as Specified

Downdraft Vent Systems

Advance
Planning

The installation of these downdraft vents with
any Monogram cooktop requires careful
consideration. For accurate planning, this
book provides individual dimension drawings
for the vent and the Monogram cooktop
installation.

Countertop Requirements:

The countertop must have a deep flat surface
to accommodate the cooktop and the vent.
Countertops with a rolled front edge and
backsplash may not provide the flat surface
area required.

Base Cabinet Requirements:

The base cabinet must be deep enough to
accommodate the min. clearance to the front
edge of the countertop, the cooktop burner
box and the vent.

Creative Solutions

√ When the kitchen design calls for an against the wall

installation, move the base cabinet forward, 3” to 5”.
Filler panels or complimentary moldings can be
added to the exposed cabinet sides.

Before you begin you must:

1. Review countertop dimension illustrations

to be sure you will have enough flat
countertop surface.

2. Check to be sure that the total countertop
depth required (including min. cutout to
front edge depth) allows enough space for a
backsplash.

3. Review the cabinet illustration. Check to be
sure that the interior cabinet depth will
house the cooktop burner box, the vent and
the cutout clearance from the front.

4. When countertop and cabinet depth
present a problem, review Creative Solutions.

5. Read this book completely to accurately
plan the installation location, clearances and
ductwork requirements.

With careful planning you can achieve a
custom look with minimal adjustments.

√ In an island or pennisula, use an extra deep

countertop. The countertop overhang at the front can
be adjusted to meet setback to cutout requirements.

√ When the cutout to front edge of the countertop

requirement is more than 2”, add a bullnose trim to
the front edge of the countertop. Include the trim
thickness when measuring front edge to cutout
requirement. By adding the trim, the cooktop can be
moved forward, providing additional countertop depth
and interior cabinet space.

B18

Base Sink

BS30 to BS42

B18

End
Panel

Countertop
Overhang
per Cooktop
Clearances
Must be
Maintained

Trim

Add a Bullnose Trim
or Other Decorative
Molding to Increase
Countertop Depth
and to Maintain
Required Clearance
From Front Edge to
Cutout.

1-7/8"

DOWNDRAFT

VENT

4

Cover Panel

Design Information

Downdraft Vent Systems

Advance
Planning
(continued)

Clearances

• The downdraft system with blower, motor
and ductwork 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. Order JXRB57 for
indoor remote locations.

– In this installation a transition to 6" round

is required.

• The blower motor assembly can also be
installed outdoors. Order JXBC57 for
remote blower installations outdoors.

– In this installation one or two 3-1/4"x10"

to 6" round transitions may be required.

• Refer to “Cooktop 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.

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.

• If cabinetry is used above the cooking
surface:

– 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 have 18" minimum clearance

between countertop and cabinet bottom.

• Installation must conform with local codes.

• 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. Order the cap in advance.

Electrical and Gas Locations

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’ two foot long power
cord.

– The vent and a Monogram gas cooktop

combination can operate from the same
120 volt standard duplex outlet.

– Electric cooktops must operate from a

separate 240 volt junction box.

5

Installation Preparation

Downdraft Vent Systems

Cutouts and
Clearances

ZEU769
Electric Cooktops
with 36” Vent

• Measure carefully when cutting the
countertop. Make sure sides of the opening
are parallel and rear and front cuts are
exactly perpendicular to sides.

• Measure to be sure there is room for
clearances to the front edge of the
countertop.

• Refer to cooktop installation instructions
to be sure that models fit into the base
cabinets being used.

1-3/4" Min. Cooktop Cutout to Rear

Vertical Combustible Surface

36"

21-3/4"

Cutout

Depth

Front Edge

of Countertop

34" Cooktop and Vent Cutout

5/8" Cooktop Overlap

2-1/2" Min. Clearance to Cutout

2" Min. Cutout

to Side Walls

• Identify the cutout illustration for the
cooktop model you are installing.

– Draw lines on the countertop to follow as a

cutting guide. Measure and mark cooktop
and vent overlaps to be sure there is
enough flat countertop depth.

1/4" Overlap

1/8" Gap

22-1/2"

Total Flat

Surface

Required

Countertop Cutout: Requires 22-1/2" flat countertop
surface and 24-3/8" total countertop depth.

Cabinet: Requires 22-1/2" inside cabinet depth.
– Remove rear support rail.

2-1/2" to

Cutout

ZEU769 Cooktop

3/4"

22-3/4" to Back Wall

22" to Support Rail

19-7/8"

DOWNDRAFT VENT

24-3/4"

1-7/8"

3/4"
Thick
Support
Rail

6

Installation Preparation

3/4"

22-3/4" to Back Wall

22" to Support Rail

24-3/4"

2-1/2" to

Cutout

ZEU36 Cooktop

1-7/8"

3/4"
Thick
Support
Rail

19-7/8"

DOWNDRAFT VENT

Downdraft Vent Systems

ZEU30R
Digital Cooktops
with 30" Vent

ZEU36R
Digital Cooktops
with 36" Vent

1-3/4" Min. Cooktop Cutout to Rear

Vertical Combustible Surface

29-7/8" (SS)

29-3/4" (B,W)

22-1/4"

Cutout

Depth

5/8" Cooktop Overlap

(1-1/8" at Center)

Front Edge

of Countertop

28-1/2"

Cooktop Area Cutout

2-1/2" Min.

Clearance to Cutout

2" Min. Cutout

to Side Walls

Countertop Cutout: Requires 23-3/8" (B,W) 23-1/2"
(SS) flat countertop surface. Requires 24-3/4" (B,W) and
24-7/8" (SS) total countertop depth.

1-3/4" Min. Cooktop Cutout to Rear

Vertical Combustible Surface

36-1/8" (SS)

36" (B,W)

2-3/4"

21-3/4"

Cutout

Depth

19-1/8"

Cooktop

Cutout

Depth

Cooktop and Vent Cutout

5/8" Cooktop Overlap
(1-1/8" at Center)

34"

1/4" Overlap

1/8" Gap

23-1/2" (SS)

23-3/8" (B,W)

Total Flat

Surface

Required

at Center

1/4" Overlap

1/8" Gap

23" (SS)

22-7/8" (B,W)

Total Flat

Surface

Required

2-1/2" to

Cutout

ZEU30 Cooktop

20-3/8"

3/4"

DOWNDRAFT VENT

22-3/4" to Back Wall

22" to Support Rail

24-3/4"

1-7/8"

Cabinet: Requires 23" inside cabinet
depth.
– See Creative Solutions, install in an

island or move cabinet base forward.

3/4"
Thick
Support
Rail

Front Edge

of Countertop

Countertop Cutout: Requires 22-7/8” (B,W) 23" (SS)

flat countertop surface. Requires 24-1/4" (B,W) and
24-3/8" (SS) total countertop depth.

2-1/2" Min.

Clearance to Cutout

2" Min. Cutout

to Side Walls

Cabinet: Requires 22-1/2" inside
cabinet depth.
–Remove rear support rail.

7

Installation Preparation

1"

22-3/4" to Back Wall

22" to Support Rail

24-3/4"

2-3/4" to

Cutout

ZGU375 Cooktop

1-7/8"

3/4"
Thick
Support
Rail

19-7/16"

DOWNDRAFT VENT

Downdraft Vent Systems

ZGU36GG
Gas Cooktops
with 36" Vent

ZGU375
Gas Cooktop
with 36" Vent

2-1/4" Min. Cooktop Cutout to Rear

Vertical Combustible Surface

36"

21-3/4"

Cutout

Depth

Front Edge

of Countertop

34" Cooktop and Vent Cutout

13/16" Cooktop Overlap
(1-1/2" at Center)

2-1/2" Min.

Clearance to Cutout

6" Min. Cutout

to Side Walls

Countertop Cutout: Requires 23-3/8" (B,W) 23-1/2"
(SS) flat countertop surface. Requires 24-3/8" (B,W) and
24-1/2" (SS) total countertop depth.

3-3/8" Min. Cooktop Cutout to Rear

Vertical Combustible Surface

9/16"

21-7/16"

Cutout

Depth

2-9/16"

18-7/8"

Cooktop

Cutout

9/16"

36-1/2"

34" Vent Cutout

35-5/16"Cooktop

Area Cutout

7/16" Cooktop Overlap
(1-1/4" At Center)

1/4" Overlap

1/8" Gap

23-1/2" (SS)

23-3/8" (B,W)

Total Flat

Surface
Required
at Center

1/4" Overlap

1/8" Gap

22-3/4"

Total Flat

Surface

Required

2-1/2" to

Cutout

ZGU36 Cooktop

20-1/16"

3/4"

DOWNDRAFT VENT

22-3/4" to Back Wall

22" to Support Rail

24-3/4"

1-7/8"

Cabinet: Requires 22-11/16" inside
cabinet depth.
–Remove rear support rail.

3/4"
Thick
Support
Rail

Front Edge

of Countertop

8

Countertop Cutout: Requires 22-3/4” flat countertop
surface and 24-1/4" total countertop depth.

2-3/4" Min.

Clearance to Cutout

7-9/16" Min. Cutout

to Side Walls

Cabinet: Requires 22-5/16" inside
cabinet depth.
–Remove rear support rail.

Clearances

Caution:

Wall coverings,

countertops and cabinets
should withstand 200° heat
generated by any cooktop.

Installation Preparation

Downdraft Vent Systems

Gas - 8-13/16" min.

Electric - 2"

Clearance to Sidewall

Tools and
Materials
Required

Parts
Supplied

30"

Min.

13"

Max.

18"

Min.

2" Min. to

Wall When

Installed

2" Min. to

Wall When

Installed

30"

Min.

13"

Max.

18"

Min.

8" Min. to

Wall When

Installed

Electric Cooktop Models Gas Cooktop Models

• Large flat-blade screwdriver.

• Jig saw

• Carpenter’s square

• Ductwork to suit the installation

Open the carton and remove parts package.
Check contents to be sure all pieces are
present.

8" Min. to

Wall When

Installed

4 Stablizing Brackets

Remote Raise/Lower Assembly

Switch Cover Plate

Plastic Strain ReliefWire box and screws Wire and White Connector

Attachment Bracket

9

Installation Preparation

Plastic Ties

34" for 36" Models

28-1/2" for 30" Models

29-1/2"

Electrical
Outlet
12" Above
Cabinet Floor

Do Not Locate Gas or Electrical

Connections Within Shaded Area

Downdraft Vent Systems

Remove
Packaging

Power
Supply

• Remove the shipping materials and the
carton, set carton aside. The carton can be
used as a pad when changing or adjusting
vent direction.

• Remove the plastic ties on both ends at the
top of the vent.

WARNING
FOR PERSONAL SAFETY:

Remove house fuse or open circuit breaker
before beginning installation.

Do not use an extension cord or adapter plug
with this appliance. Follow National electrical
codes or prevailing local codes and ordi­nances.

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
Monogram gas cooktop, it may operate from
the same duplex outlet.

Electric Cooktops

If this vent is installed in combination with a
Monogram 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’
two 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.

IMPORTANT: (Please read carefully).

The power cord of this appliance is equipped
with a three-prong (grounding) plug which
mates with a standard three-prong grounding
wall receptacle to minimize the possibility of
electric shock. The customer should have the
wall receptacle and circuit checked by a
qualified electrician to make sure the recep­tacle is properly grounded and has correct
polarity.

• Where a standard two-prong wall receptacle
is encountered, it is the personal responsibil­ity and obligation of the customer to have it
replaced with a properly grounded three­prong wall receptacle.

Do not, under any circumstances, cut or
remove the third (ground) prong from the
power cord.

DO NOT USE AN EXTENSION CORD.

10

Installation Preparation

Downdraft Vent Systems

Venting
Options

Loosen Screws
to Adjust
Blower Left
to Right

Nut
Location
Inside
the Blower
Discharge

• The downdraft vent is shipped with the
discharge outlet pointing straight down and
can be changed to the left or right side.

• The blower outlet is sized for 3-1/2" x 10"
and can be transitioned to 6" round.

Loosen Screws to Rotate

30° to Left or 30° to Right

30° Rotation Left or Right

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.

30° Rotation

For even more flexibility, the entire blower
can be rotated up to 30° towards the left or
30° towards to right.

Discharge direction

The blower assembly may be removed and
turned 90° for a left or right side discharge.

11

Installation Preparation

Discharge Left

Downdraft Vent Systems

Venting
Options

• 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 4 nuts holding the blower to the
mounting plate. See illustration. One nut is
just inside the blower discharge.

• Remove and turn the blower to the right or
left.

• Reinstall the 4 nuts.

To locate the ductwork holes in the cabinet
floor or side walls:

• Temporarily, place 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 piece over the discharge outlet.

– Mark the location and remove the

assembly.

– Cut holes and install ductwork

connections.

Order JXRB57 for installation of the blower and motor
below the floor.

Order JXBC57 for installation of the blower and motor
outdoors.

12

Discharge Down
(as Supplied)

Discharge Right

Ductwork

Downdraft Vent Systems

Duct
Fittings

Use this form to
compute maximum
permissible lengths
for duct runs to
outdoors.

Note: Do not exceed
maximum permissible
equivalent lengths!

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.

Downdraft Vent

150' maximum
equivalent length

Note: Any home
ventilation system,
such as a cooktop with
a downdraft exhaust
mechanism, 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.

Equivalent Quantity Equivalent

Duct Piece Dimensions Length* Used Length

1 ft.

6" round, (per foot

straight length)

1 ft.
3-1⁄4" x 10" (per foot
straight length)

6"
90° elbow 15 ft.

6"
45° elbow 9 ft.

3-1⁄4" x 10"
90° elbow 16 ft.

3-1⁄4" x 10"
45° elbow 5 ft.

3-1⁄4" x 10"
90° flat elbow 18 ft.

6" round
to 3-1⁄4" x 10"
transition 7 ft.

3-1⁄4" x 10"
round to 6"
transition 5 ft.

6" round to

1

⁄4" x 10"

3

transition

90° elbow 20 ft.
3-1⁄4" x 10" to 6"

round transition
90° elbow 12 ft.

6" round
wall cap
with damper 21 ft.

3-1⁄4" x 10"
wall cap
with damper 27 ft.

6" round
roof cap 20 ft.

6" round
roof vent 24 ft.

*Actual length of straight duct plus duct fitting

equivalent. Equivalent length of duct pieces are based
on actual tests conducted by GE Evaluation Engineer­ing and reflect requirements for good venting
performance with any downdraft cooktop.

Total Duct Run

Total

13

Installation

Duct Tape
Over Seam and Screw

Screw

Air

Flow

Downdraft Vent Systems

Step

1

Install
Downdraft
Vent

Optional Method
Secure to Cabinet
Side With Top
Screw on Case

Or Use Second Screw

Secure the Lower Brackets

to Blower Housing

Place the downdraft vent into the countertop
cutout, against the back side.

• Secure the downdraft to the countertop
supplied brackets. See illustration.

– Fasten brackets to top screws on the front

side of the vent, secure to cabinet side wall
just below the countertop. Or,

– Fasten one bracket to vent side and secure

to cabinet back wall.

Preferred Method
Secure the Upper
Brackets With Screws
Located on the side of
Case and Attach to
Back Wall of Cabinet

– Install two 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.

• The downdraft blower system is designed for

Step

2

Install the
Ductwork

14

use with 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.

•6" PVC duct should be used when installing
under a concrete slab.

Note: Local building code must be followed
for installation and in specifying approved
type and schedule of PVC duct used.

• DO NOT USE flexible plastic ducting.

• Always use appropriate roof or wall cap with
damper. Laundry type wall caps should
never be used.

• Use the straightest duct run possible.

• For satisfactory performance the duct run
should not exceed 150 ft. 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 self­tapping screws and apply duct tape around
the joints to ensure an airtight seal.

Step

3

Install
Raise/Lower
Switch

WARNING: Disconnect electrical power from
unit before beginning switch installation.
Failure to do so could result in personal
injury or damage to the electrical controls.

Determine the location for the RAISE/
LOWER switch. The wiring lead is 72" long.

• Drill a 3/16" hole into the desired location.
– 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 pilot
holes.

• Mount the metal switch bracket with screws
(not provided, choose screws for your type
of countertop or use locally approved
adhesive).

• Tie a knot in the lead as close to the switch
as possible. This will prevent the lead from
being pulled away from the switch.

• Thread the wire lead through the hole in
the top of the countertop.

Installation

Downdraft Vent Systems

Trim

Knot

Mounting
Bracket

3/16" Hole

Thread Electrical
Leads Through Hole

• Pull wire through hole from underside of
countertop and thread the wire lead into
the end of the wire box.

• Peal film from the back of the switch trim to
expose the adhesive.

• Press trim onto the mounting bracket to set
the adhesive.

• Peal film from the back of the RAISE/
LOWER pad to expose adhesive. Align with
impression and press to set adhesive.

•Remove protective coating from the top of
the trim frame.

Important: Do not connect wire leads to white
connector until you have threaded the lead
through the countertop hole and through the
end of the wire box.

• Push wire metal leads into the white connec­tor plug. Pull wire through box leaving
about 2" additional length. See illustration.

• Place plastic strain relief over wire, the wire
should be flat and fit into the area. Do not
pinch or twist the wire. Snap the strain relief
closed.

• Push the strain relief into the hole on the
wire box. It will snap into position.

• Secure wire box to vent with screws
provided.

•Coil the excess wire and position away from
moving parts and cabinet contents.

Leads

2 Pin Connector

Pull 2" Length

Out of Box

Strain

Relief

15

Installation

Downdraft Vent Systems

Step

4

Connect
Power

Step

5

Install Filters,
Check
Operation

• Plug power cord into properly grounded
receptacle.

To raise the vent, press the RAISE/LOWER
switch.

– On 30" models, the switch is located on the

top right side of the vent.

– On 36" models, the switch is installed in a

separate location.

• Tip filter into the opening and pull straight
down so that the filter rests on slides.

• Slide the filter to the right side.

• Tip the other filter into the opening and
pull straight down.

• To turn the fan on, slide control to HIGH.

– Select desired speed by sliding control

between HI and LO settings.

Cleaning

Note: It is not necessary to turn the fan OFF
before lowering the vent. The fan will auto­matically turn off when the vent is lowered.
When the fan is not turned off before lower­ing the vent, it will automatically come on at
the previously set speed when the vent is fully
raised.

To lower the vent, press the RAISE/LOWER
switch and hold until the vent begins to lower.

Cleaning the Stainless Steel Downdraft Vent

Stainless steel has some unique cleaning
characteristics. In order to keep you vent
looking like new, we suggest cleaning it with

Stainless Steel Magic or a similar product.

Stainless Steel Magic is available at Ace, True

Value, Servistar, HWI and other leading
stores. It is also available through GE Parts by
calling 1-800-626-2002. Order part number
WX10X15.

16

This kit provides for the installation of the
blower and motor outside of the cabinet, such
as below the floor. Use this kit for indoor
remote installations only.

JXRB57 Kit

For Indoor Remote Blower Locations

Tools and Materials required:

• Pencil

• Measuring tape

• Drill with appropriate bits

• Nut driver

• Junction box

• Wire nuts

• Safety glasses

• 3-1/4" x 10" to 6" round transition.

• 3-1/4 x 10" duct, (or 6" round) sufficient length to reach
the outdoor wall cap or roof cap.

• Electrical cable and connectors, sufficient length to
connect the downdraft vent to the remote blower
location. 14-guage min. is recommended, must conform
to local codes.

Parts Supplied

Step

1

Prepare
the Vent

Note: A 3-1/4" x 10 transtion to 6" round is
required.

3"

Blower Wire Box

Loosen
Screw

Blower Conduit

Hanger Brackets

Package of screws

Cover Plate

• Flatten the shipping box to use as a pad.

• Place the unit on its back onto the protec­tive pad.

• Remove the wire box on the plenum.

• Cut the blower leads approximately 3" from
the plug on the end of the vent.

• Remove the blower conduit by loosening the
screw on the fitting.

• Set aside the 3" wire leads with plug, wire
box and screws.

Outlet Plate

17

JXRB57 Kit

14-1/2"

For Indoor Remote Blower Locations

Step

1

(continued)

• Remove the 4 nuts holding the blower to the
mounting plate. One nut is hidden inside
the outlet. Remove blower.

• Remove the blower mounting plate.

• Remove 2 screws along the bottom of the
blower box which are visible once blower
plate is removed.

• Carefully, turn the unit over to access the
back side.

• Remove 4 screws along the top of the blower
box.

• Turn unit over and remove the 4 screws
along the top.

• Remove the blower box.

• Retain all screws.

Important:

unused parts. If the
appliance is relocated at
a later time, parts may be
needed.

Save any

Hidden
Screws

Step

2

Determine
Blower
Location

• Determine location of the blower and
motor.
– The blower will fit between floor joists, 16”

on center. Or, provide a surface to attach
the entire assembly to the underside of the
floor.

• Secure mounting brackets to the top of the
blower with screws and nuts. One bracket in
each corner, as illustrated.
– Set the bracket at the ends of the curved

slots to reach a 14-1/2” span between floor
joists, or adjust for your installation
situation.

• Mark the installation location and cut hole
for 6” round duct.

• Secure the blower to the joists.

Blower

Blower Box

Blower
Mounting
Plate

18

Step

Wiring to Blower Junction Box

Provided
Mounting
Screws

Blower
Wire
Box

Wire Nuts

3-Wire
Connectors

Plenum

JXRB57 Kit

For Indoor Remote Blower Locations

3

Connect
Ductwork

Downdraft

Duct Adapter

Outlet Cover

• The downdraft plenum can discharge from
either the right or left side. Select the side
that provides the best alignment to
ductwork extending to the blower assembly
below.

– For a left side discharge, install the outlet

plate to the bottom of the plenum on the
left side. Install the cover plate to the
bottom of the right side. Reverse plates for
a right side discharge.

.

• Connect the plenum to the ductwork. A
transition is required to connect the 3-1/4"
x 10" duct to the 6" round inlet on the
blower.

• Tape to seal all joints.

Step

4

Connect
Electrical

• Use electrical cable and connectors that
conform to local codes (14 gauge min. is
recommended). Use a length to reach
between the vent and the blower/motor
location.

• Attach the wire box removed from the
blower conduit to the end of new wiring.

• Use wire nuts to secure the wire to the 3"
remaining wires with plug.

• Insert the plug into the mating plug on the
vent.

• Reinstall wire box with original screws.

• Install a junction box withing reach of the
blower conduit.

• Use a conduit fitting to secure conduit to
junction box. The red plastic anti-short
bushing should be secured to the end of the
conduit.

• Use wire nuts to connect wires.

19

The blower and motor assembly can be

Base
Assembly

Outlet Pan

mounted on an outside wall. This kit provides
a means to mount the blower outside with a
protective cover.

JXBC57 Kit

For Outdoor Remote Blower Locations

Materials Required
(not supplied)

• Approved liquid tight service connections for use
between the wire compartment on the base and inside
the structure.

• 7 wire nuts or other approved connectors.

• Six 5/16" dia. fasteners compatible with the type of
material the base is being fastened to.

• 3-1/4" x 10" to 6" round transition.

• 3-1/4 x 10" duct, (or 6" round) sufficient length to reach
the outdoor installation location.

• Electrical cable and connectors, sufficient length to
connect the downdraft vent to the remote blower
location. 14-guage min. is recommended, must
conform to local codes.

Tools required:

• Pencil or chalk

• Measuring tape

• Drill with appropriate bits

• Phillips head screwdriver

• 1/4" Nut driver

• Wire nuts

• Safely glasses

Step

1

Check
Parts
Supplied

• Separate the cover from the base assembly
by removing 5 screws. Retain screws.

• Check to be sure all parts are present.

Cover

Junction Box

Package of screws

Cover Plate

Outlet Plate

Damper

20

3"

Blower Wire Box

Blower Conduit

Loosen
Screw

10" Min

Above Ground

6-11/16"

16"

4-3/4"

6"

12"

Align
With Duct
Opening
On Outside
Wall

1-13/16"

12-15/16"

6 Holes
For 5/16
Fastners

6-1/8" Dia.

Step

2

Mark
Mounting
Location

JXBC57 Kit

For Outdoor Remote Blower Locations

• The base is designed to be mounted to studs
on 16" centers. Use the dimensions shown to
determine the location of the ducting and
wiring through the wall.

– Or, place the base against the exterior wall

and mark the 6 mounting locations, the 6"
duct location and the hole for the wiring.
Use pencil or chalk.

• The bottom of the base assembly must be
10" min. above the ground. There should be
no obstructions to the discharge from the
damper.

• Cut a 6-1/8" dia. hole in the vertical struc­ture to accommodate a 6" round duct and
another hole for the wiring.

• Drill 6 pilot holes through the wall for the
5/16" fasteners.

Step

3

Prepare
the Vent

CAUTION:

do not damage electrical wiring or hidden utilities.
Check for interference with floor joists and stud walls. If
necessary, locate the base to provide a secure
installation.

• Place a 6" round duct through the hole
extending approximately 3" from the wall to
provide a proper seal with the blower.
Secure the duct to the building structure to
prevent it from being pushed back when the
blower is installed.

• Flatten the shipping box to use as a pad.

• Place the unit on its back onto the protective
pad.

• Remove the wire box on the plenum.

• Cut the blower leads approximately 3" from
the plug on the end of the vent.

• Remove the blower conduit by loosening the
screw on the fitting.

• Set aside the 3" wire leads with plug, wire
box and screws.

When cutting or drilling into a wall or ceiling,

21

Step

3

(continued)

• Remove the 4 nuts holding the blower to the
mounting plate. One nut is hidden inside
the outlet. Remove blower.

• Remove the blower mounting plate.

• Remove 2 screws along the bottom of the
blower box which are visible once blower
plate is removed.

• Carefully, turn the unit over to access the
back side.

• Remove 4 screws along the top of the blower
box.

• Turn the unit over and remove the 4 screws
along the top.

• Remove the blower box.

• Retain all screws.

Important: Save any unused parts. If the
appliance is relocated at a later time, parts
may be needed.

JXBC57 Kit

For Outdoor Remote Blower Locations

Hidden
Screws

Blower

Blower
Mounting
Plate

Blower Box

• The downdraft plenum can discharge from
either the right or left side. Select the side
that provides the best alignment to
ductwork extending to the blower assembly.

– For a left side discharge, install the outlet

plate to the bottom of the plenum on the
left side. Install the cover plate to the
bottom of the right side. Reverse plates for
a right side discharge.

.

• A transition is required to connect the
3-1/4" x 10" duct to the 6" round inlet on
the blower.

• Tape to seal all joints.

Step

4

Connect
Blower
Wires

22

• Check that the red plastic anti-short bushing
is secured in the end of the conduit. Install
the blower conduit into the conduit connec­tor on the junction box and tighten the screw.

• Install a liquid tight fitting in the hole of the
wire compartment on the base, sized to fit
wire being used.

• Run the electrical wiring from the downdraft
vent to the wire compartment.

• Attach the green ground leads from the wire
compartment, connecting one to the green
ground lead on the blower and the other to
the ground lead of the wiring from the
downdraft vent.

• Connect the neutral (white) and power lead
(black) from the blower to the leads from the
downdraft vent.

• Use wire nuts to connect wires.

Duct Adapter

Base
Assembly

Wires

to Vent

Strain

Relief

Downdraft

Outlet Cover

Blower
Conduit

Red Anti­Short Bushing

Conduit
Connector

Wire
Compartment

Green Ground

Leads

JXBC57 Kit

For Outdoor Remote Blower Locations

Step

5

Connect
Electrical

Step

6

Mount
Blower

• Use electrical cable and connectors that
conform to local codes (14 gauge min. is
recommended). Use a length to reach
between the vent and the blower/motor
location.

• Attach the wire box removed from the
blower conduit to the end of new wiring.

• Use wire nuts to secure the wire to the 3"
remaining wires with plug.

• Insert the plug into the mating plug on the
vent.

• Reinstall wire box with original screws.

• Mount the blower onto the mounting plate.
Secure with original nuts.

• Install damper to bottom of outlet with 4
screws.

Blower
Wire
Box

Plenum

Provided
Mounting
Screws

Wire Nuts

Wiring to Blower Junction Box

3-Wire
Connectors

• Place the cover over the the assembled kit

Step

and secure with 16 screws.

7

Finalize
Installation

23

®

Monogram.

General Electric Company
Louisville, KY 40225

NOTE: While performing installations described in this book,

safety glasses or goggles should be worn.

For Monogram local service in your area, call
1-800-444-1845.

NOTE: Product improvement is a continuing endeavor at General
Electric. Therefore, materials, appearance and specifications are
subject to change without notice.

Pub. No. 49-80126
Dwg. No. 164D4290P084

(N.D. 397) 2/02
959-0344-000Rev.B