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.