GE ZEW145, ZGW124, ZGW125, ZEW155, ZEW166 Installation Instructions

GE Monogram

Installation

Instructions

Component
Cooktop
System

®

Models

ZEW145

ZGW124

ZGW125

ZEW155

ZEW166

ZEW176

www.monogram.com

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.

WARNING

This appliance must be properly grounded. See “Electrical Supply”, page 13.

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

If you received a damaged component, you
should contact your dealer.

For Monogram service in Canada,
1-888-880-3030.
For Monogram Parts and Accessories, call
1-800-626-2002.

CAUTION: FOR PERSONAL SAFETY,
REMOVE HOUSE FUSE OR CIRCUIT
BREAKER BEFORE BEGINNING
INSTALLATION.
These appliances must be supplied with the
proper voltage and frequency, as listed on
page 18. Connect to an individual, properly
grounded branch circuit breaker or time delay
fuse. Proper electrical ratings should be
verified with listing on product’s rating plate.

Installation of these components require basic
mechanical skills. Proper installation is the
responsibility of the installer.

other naturally vented systems. To minimize
the chance of interference with such naturally
vented systems, follow the heating equipment
manufacturer’s guidelines, and local codes.
Also follow the guidelines in ASHRAE
Standard 62-1989, “Ventilation for Acceptable
Indoor Air Quality”, section 5.8. When
following these guidelines, be sure to test for
proper airflow direction into the draft hood of
a naturally vented gas furnace or water heater.

This can be checked by striking a match,
Wiring must conform to the requirements of
the National Electrical Code. If the electric
supply provided does not meet the specifica­tions, call a licensed electrician.

blowing it out, and while it is still smoking,

holding it near the draft hood relief opening.

If smoke is drawn into the opening, vent flow

is in the proper direction. If the ASHRAE

Standard 62 guidelines are not satisfied, a
WARNING:
Any home ventilation system, such as a

positive supply of outside air may have to be

supplied.
cooktop with a downdraft mechanism, may
interfere with the proper flow of exhaust
products or combustion air required by gas
furnaces, gas water heaters, fireplaces, or

In the absence of local codes, the gas cooktop

must comply with the National Fuel Gas Code,

ANSI Z223.1, latest edition.

Contents

2

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

Product Dimensions ........................................ 3, 4

Installation Accessories........................................5

Advance Planning ................................................ 5

Installation Options .............................................5

Installation Rules ................................................. 5

Installation Location............................................ 6

Tools & Materials Required ................................ 7

Cutout Information .................................... 7, 8, 9

Venting Options ................................................. 10

Ductwork Advance Planning ............................. 10

Optional Ductwork Arrangement .................... 10

Determine Ductwork Location .........................11

Install Blower Assembly .....................................11

Finalize Ductwork .............................................. 11

Duct Fittings ....................................................... 12

Gas Supply Location ..........................................13

Electrical Supply ................................................13

Step 1: Apply Gasket Strip .................................14

Step 2: Remove Knobs, Gates ............................ 14

Step 3: Joining Multiple Cooktops ...... 14, 15, 16

Step 4: Secure Cooktop(s) to Countertop ....... 16

Step 5: Connect Gas ...........................................17

Step 6: Connect Electrical .......................... 17, 18

Electrical Power Requirements .....................18

Finalize Installation............................................ 19

Design Information

14-1/2"

21-5/16"

2-1/4"

5-1/2"

Shipped With
Discharge On
Left Side

Component Cooktop System

Models
Available

Product
Dimensions

Monogram Component Cooktop System
offers cooking flexibility with modular
cooktops in a variety of cooking technologies
to meet any cooking need.

ZEW145
Radiant Cooktop Component

ZEW155
Updraft Grill Cooktop Component,

ZEW166
Downdraft Grill Cooktop Component

ZEW176
Downdraft Vent Component

ZEW145

Radiant Cooktop Component
(240 and 208 volt, dual rated)

Parts supplied:

• 44" flexible conduit

• One joiner strip

• Two sets clamping screws

• One chassis support brace

ZGW124
Gas Cooktop Component,
with right hand controls

ZGW125
Gas Cooktop Component,
with left hand controls

JXBA55 blower motor assembly is supplied
for the downdraft vent and downdraft grill.
JXBC55 optional outdoor cover accessory
may be ordered for installation of blower and
motor assembly on an outside wall.

15-1/2"

*3-1/4"

*Allow additional 1" depth for clearance
of flexible conduit

21"

ZEW155

Updraft Grill Cooktop Component
(240 volt)

Parts supplied

• Grease collection jar

• 48" flexible conduit

• One joiner strip

• Two sets clamping screws

• One chassis support brace

ZEW176

Downdraft Vent Component
Install next to gas or radiant components.
(Cannot be installed next to an updraft grill)
(120 volt)

Parts supplied:

• 48" flexible conduit

• Two downdraft joiner strips

• One downdraft endcap

• JXBA55 blower motor assembly

NOTE: The downdraft plenum is shipped with the discharge
outlet on the left side. It can be changed to the right side.

5-3/8"

16-3/8"

10"

21"

3

Design Information

Component Cooktop System

Product
Dimensions

ZEW166

Downdraft Grill Cooktop Component
(240 volt)

Parts supplied:

• Grease collection jar

• 48" flexible conduit

• One set clamping screws

• One downdraft joiner strip

• JXBA55 blower motor assembly

NOTE: The downdraft plenum is shipped with the discharge
outlet on the left side. It can be changed to the right side.

5-3/8"

10"

Blower
Motor
Assembly

6"

90°

Elbow

14-1/2"

3-1/4"

17-1/2"

Adjustable

5" to 8"

14-1/2"

21-1/2"

10"

5-3/8

21-5/16"

5-3/8"

Shipped With
Discharge On
Left Side

10"

14-1/2"

16-3/4"

Front View, Downdraft Grill With Blower Motor Assembly Left Side View, Downdraft Grill

ZGW124

Gas Cooktop Component,
with right hand controls

3-1/4"

15-1/2"

ZGW125

Gas Cooktop Component,
with left hand controls

15-1/2"

Parts supplied with each:

• 1/2" inlet pipe

• Pressure regulator

3-1/4"

• One joiner strip

• Two sets clamping screws

• One chassis support brace

NOTE: Gas components are designed for natural
gas operations and cannot be converted to LP

4-7/16"

Top View

Countertop

Cutout

operation.

Gas

If installation includes a drawer beneath gas
cooktop, make allowance for gas inlet pipe.

Inlet
Pipe

17-1/8"

Gas inlet extends 1-1/4" from bottom.

ZGW124

Right Hand

Controls

21"

21"

Gas
Inlet
Pipe

ZGW125

Left Hand

Controls

4

Design Information

End Cap Downdraft Joiner Downdraft
Joiner End Cap

Component Cooktop System

Installation
Accessories
Provided

Advance
Planning

Joiner strips and end caps are included to
provide a finished look to any modular
cooktop arrangement.

• Consider base cabinet storage arrangements
to accommodate the downdraft blower/
motor assembly.

–The downdraft plenum assembly will occupy

the cabinet below the cooktop. Drawers
cannot be installed below the downdraft
vent or downdraft grill components. The
blower may be installed in the cabinet or
located downstream from the plenum in
the duct run.

–Shorter length drawers may be installed

below gas components, allowing for gas
inlet clearance.

• Do not cut holes for ductwork locations until

components are on-site, with countertop in
place, and all pre-planned locations are
confirmed.

• Always pre-plan electrical and gas
connections to be accessible at the time of
installation.

• Consider the distance to power supply, cable
length and bending restrictions before
cutting holes.

• Gas components are not convertible to liquid
propane operation.

• In the absence of local codes, the gas cooktop
must comply with the National Fuel Gas
Code, ANSI Z223.1, latest edition.

UL, A.G.A. approved.

Installation
Options

Installation
Rules

• Multiple gas and electric components can be
combined to form one custom cooking
arrangement.
–Multiple electric components can operate

from a single junction box, if local codes
permit.

–Multiple gas components can operate from

a manifold, as permitted by local codes.

• Updraft components can be vented
according to normal exhausting methods.

• The downdraft vent and grill blower assembly
may be vented downwards to the left or right
sides or through the floor. See page 11.

• Never vent a cooktop into an interior space ­always to the outdoors.

• The updraft grill requires an overhead vent
with at least 300 CFM.

• DO NOT install an updraft grill component
next to a downdraft vent.

–The motor blower assembly can be

mounted in the cabinet or under the floor.
The blower will fit between floor joists on
16" centers.

–The plenum on the downdraft grill and

vent is shipped with the discharge on the
left side. It can be changed to discharge
from the right side.

• JXBC55 optional outdoor cover accessory
may be ordered for installation of blower
and motor assembly on an outside wall.

• DO NOT install a downdraft vent behind a
cooktop.

• DO NOT install a gas or grill cooktop where
the knobs are between the heated area and
the downdraft vent.

5

Cabinetry

13"

Max

*1" Min.

to Wall

*2" Min.
to Front

Edge

36"

18"

Min.

**1" Min.

to Wall

* Gas in side to side orientation
requires 2" min. to rear wall.

** Gas requires 2" min. to side wall.

One or
More
Component
Cooktops

30"

Min.

*1" Min.

to wall

Component Cooktop System

Installation
Location

• Whenever possible, avoid placing cabinetry
directly above the cooking surface.

• If cabinetry is used above the cooking
surface:
–Use cabinets no more than 13" deep.
–Maintain 30" minimum clearance between

cooktop(s) and unprotected cabinets
directly above the 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".

–Working areas next to the cooktops should

have 18" minimum clearance between the

countertop and the cabinet bottom.
EXCEPTION: Installation of a listed
microwave oven or cooking appliance over the
cooktop(s) shall conform to the installation
instructions packed with that appliance.

• Installation must conform with local codes.

Clearances:

• When installed electric components require

the following clearances:
– 2" min. from front of cooktop to front edge

of countertop,

–1" min. from back of cooktop to rear wall,
–1" min. from side of cooktop to side wall.

Gas components require:

–2" min. from back of cooktop to rear wall,
–2" min. from side of cooktop to side wall.

6

Cabinetry

Component Cooktop System

Tools &
Materials
Required

(Not supplied)

Cutout
Information

• Carpenter’s square

• Measuring tape

• Saw

• #2 Phillips head screwdriver bit socket

• Phillips screwdriver

• 1/4" nutdriver

• 5/16" nutdriver

• 7/16" and 5/16" socket and ratchet wrench

• Pencil

• Scissors

• Level

• Hole saw

• 6" 90° elbow

• Duct work to suit the installation.

4" Minimum Between Cutouts

4"

For Gas Components:

• Pipe wrench

• Gas line to reach installation location

• Gas resistant pipe joint sealant.

• Manual gas line shut-off valve

• 3/4" NPT x 3/4" I.D. or 1/2" NPT x 1/2"
I.D. flare union adapter

• 1/2" NPT x 3/4" I.D. or 1/2" I.D. flare union
adapter

• 5 foot AGA certified flexible metal appliance
connector, 3/4" x 1/2" I.D. to match gas
supply line.
–If required by local codes, use solid pipe

with fittings.

NOTE: Use new flexible line. DO NOT use old,
previously used flexible line.

4" Minimum Between Cutouts

4

Front to Back Orientation

• Minimum clearance is 4" between cooktops
in separate cutouts. This clearance does not
apply when multiple component cooktops
are installed in one cutout.

Find Dimension A in chart below and on the
following page.

1-7/8" Min. to

Rear Wall (2-7/8" for gas)

19-1/2"

1-3/4" Min.

to Side Wall

(2-3/4"

for Gas)

A

2-1/2" Min.

Front to Back Orientation

1-3/4" Min.

to Side Wall

Cut the opening as shown above. Measure
carefully when cutting countertop, making
sure sides are parallel and front and rear cuts
are perpendicular to sides.

• The front and rear of the opening must clear
support rails of the cabinet.

• The cutout depth (front to back) is 19-1/2"
for all components.

(2-3/4"

for Gas)

Side to Side Orientation

NOTE: Do not install a downdraft vent in a side to side
orientation behind a gas or radiant component. This
would require the user to reach over a heated surface
to access the control.

1-3/4" Min. to Rear Wall

(2-3/4" for gas)

A

1-7/8" Min.

to Side Wall

19-1/2"

(2-7/8"

for Gas)

2-1/2" Min.

Side to Side Orientation

1-7/8" Min.

to Side Wall

(2-7/8"

for Gas)

A
Radiant 14-1/2"
Gas 14-1/2"
Updraft grill 15-3/8"
Downdraft Grill 20-3/4"
Downdraft Vent 5-1/8"

7

Cabinetry

Component Cooktop System

Cutout
Information

(Continued)

If your configuration is not shown in the previous
charts, use the following chart to calculate your cutout

Component/Connector Model/Name Width Quantity Sub Total Width

ZEW145 Radiant Cooktop

Component 14-1/2"

ZGW124
ZGW125 Gas Component 14-1/2"

ZEW166 Downdraft Grill

Component 20-3/4"

ZEW155 Updraft Grill

Component 15-3/8"

Downdraft Vent

ZEW176 Component 5-1/8"

Connection between
two cooktops (including
updraft grill and non-vent

Joiner Strip side of downdraft grill) 3/4"

size. For each of the following components, add the
dimensions given.

Cutout
Information:
Multiple
Components
Example

Connection between

cooktop and
Downdraft downdraft vent or vent
Joiner Strip side of downdraft grill 1/4"

Provide finished look to
Cooktop and component cooktop
Downdraft arrangement. Do not
Vent End count as part of
Caps cutout width. 0" 0"

Total Cutout Width

A = 14-1/2" + 3/4" + 14-1/2" + 1/4" + 5-1/8" + 1/4" + 14-1/2" = 49-7/8" Total

*

*Endcaps Do Not
Add to Cutout

A

8

Cabinetry

Component Cooktop System

Cutout
information:
multiple
component
units

If multiple components will be attached together, determine dimension A from the
following:

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 A

Radiant Radiant 29 -3/4"

RH Gas RH Gas

LH Gas LH Gas

Radiant Updraft 30-5/8"

Grill

RH Gas

LH Gas

Updraft Updraft 31-1/2"
Grill Grill

Downdraft Radiant 19-7/8"
Vent*

RH Gas

Downdraft Radiant 35-1/2"
Grill

RH Gas

Radiant Downdraft Radiant 34-5/8"

Vent*

LH Gas RH Gas

Downdraft Radiant Radiant 50-3/4"
Grill

RH Gas RH Gas

LH Gas

Radiant Downdraft Radiant Downdraft Radiant 54-3/4"

Vent* Vent*

Downdraft Radiant LH Gas Downdraft Radiant 55-1/4"
Vent* Vent*

RH Gas RH Gas

Radiant Downdraft Downdraft Radiant 55-5/8"

Vent* Grill*

LH Gas RH Gas

*See “Venting rules” concerning placement of knobs in relation to downdraft vent.
If your configuration is not shown, refer to following page.

9

Venting
Options

Ductwork

Through Floor Between Joists Through Floor & Under Joists

Multiple cooktops and downdraft vent units
may be used in a single arrangement.

• Plan the route for venting exhaust to the
outdoors.

• Ductwork must be vented to outdoors - never
to a crawl space, attic or other enclosed space.

• Duct should be located between floor joists or
wall studs whenever possible.

• Blower and motor assembly can be installed
on an outside wall. JXBC55 optional outdoor
cover accessory is required and must be
ordered with each downdraft venting unit.

• Every downdraft vent and downdraft grill
must have it’s own, separate duct run.

Component Cooktop System

Direct To Outdoors

Inside Wall

To Roof

With JXBC55 Mounted

On Outside Wall

Ductwork
Advance
Planning

Optional
Ductwork
Arrangement

• Use the shortest and straightest duct run
possible.
–Duct run for Downdraft Grill Component,

ZEW166, should not exceed equivalent
length of 100 feet.

–Duct run for Downdraft Vent, ZEW176,

should not exceed equivalent length of
150 feet.

–Refer to “Duct Fittings” chart to calculate

equivalent length for various duct
configurations.

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

• Use recommended wall caps with damper.
Do not use laundry type wall caps.

• Ductwork must be vented to the outside.

• Each cooktop blower system requires a
separate duct system.

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

• The downdraft blower system is designed for
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.

10

Determine
Ductwork

Ductwork

Component Cooktop System

Location

6" 90° Elbow

(not Supplied)

Discharge left side (not to scale)

To accurately locate the ductwork holes in the
cabinet floor:

• Place all components into the cutout,
arranged in the exact position they will be
installed.

• Place a 90° elbow over the discharge outlet

and into the blower motor assembly.

• Position the transition duct on the end of the
blower motor assembly.

• Mark the location and remove the
components and blower motor assembly.

• Cut holes and install ductwork connections.

• The discharge on the plenum is located on
the left side. To change to the right side,
remove 2 screws on each side of the plenum
below the cooktop flange. Rotate the plenum
and re-install screws.

6" 90° Elbow

(not Supplied)

Discharge right side (not to scale)

6" 90° Elbow

(not Supplied)

Discharge through the
floor (not to scale).

Install
Blower
Assembly

Finalize
Ductwork

Install blower

• The blower can be mounted in the cabinet or
under the floor. The blower will fit between
floor joists on 16" centers.

• For installation where the blower is mounted
inside the cabinet, attach the mounting
supports to the bottom corners of the blower
housing. (The motor is on the bottom side,
the 6" round opening is the top side).

• If the blower is installed under the floor,
attach the mounting supports to the top
corners (the side with the 6" round opening).

NOTE: Do not drill additional holes in the blower.

• Install ductwork, making connections in the
direction of airflow as shown.

• Secure all joints with sheetmetal screws.

• Wrap joints with duct tape for airtight seal.

• Install a wall cap with damper or roof cap at
exterior opening.

Adjust mounting supports

• Adjust the height of the mounting supports
by sliding the two halves up or down. With
supports at desired length, install bolts and
nuts into the supports.

• Secure the blower to the cabinet floor or
between floor joist with screws provided.

Duct Tape

Over Seam

and Screw

Airflow

Screw

11

Ductwork

Component Cooktop System

Duct
fittings

Use copies of this
form to compute
maximum
permissable lengths
for duct runs to
outdoors.

ZEW166 Downdraft Grill
Component maximum
equivalent length is
100 feet.

ZEW176 Downdraft Vent
Component maximum
equivalent length is
150 feet

Note:

Do not exceed maximum

permissable equivalent lengths!

Flexible ducting:

If flexible metal
ducting is used, all
the equivalent length
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.

CAUTION:

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 15 ft.

3-1⁄4" x 10"

45° elbow 9 ft.

3-1⁄4" x 10"

90° flat elbow 20 ft.

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

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

6" round to
3-1⁄ 4" x 10"
transition

90° elbow 5 ft.

3-1⁄ 4" x 10" to 6"
round transition

90° elbow 15 ft.

6" round
wall cap
with damper 30 ft.

3-1⁄ 4" x 10"
wall cap
with damper 30 ft.

6" round
roof cap 26 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

12

Gas and Electrical Supply

ZGW124
ZGW125

ZEW145

ZEW155

ZEW166

Component Cooktop System

Gas
Supply
Location

Electrical
Supply

• Gas components are designed to operate on
natural gas at 4" water column pressure.
These cooktops are supplied with 1/2" NPT
male gas connections. The connection for
models with right hand controls is on the
bottom right corner, and left hand control
models on the left corner.

• Gas components cannot be converted to LP
gas operation.

• Make gas connection through the rear wall,
or on the cabinet floor at the rear.

• For rigid connection, locate pipe stub:
–4-7/16" from center line of appliance,
–on the back wall, at least 12" below

countertop,
–on the floor, 2-1/2" forward of the back of
the countertop cutout.

For flexible connection, locate pipe stub on
floor or back wall in a convenient location.

• Install a manual shut-off valve in the gas line
in an easily accessible location.

The radiant component operates on 240/208
volt, 60 Hz. Updraft grill and downdraft grill
components operate on 240 volt, 60 Hz. Gas
and downdraft vent components operate on
120 volt, 60 Hz. from a separate junction box.
A dedicated circuit, protected by a time delay
fuse or circuit breaker is required for
cooktops. The downdraft vent requires an
appliance circuit with a time delay fuse of
circuit breaker.

4-7/16"

4-7/16"

12"

Min.

L.H. Gas Unit

R.H. Gas Unit

Gas Supply Options

Important: 12" min. is specified to allow space for shut-off valve
if supply is opted to enter from rear.
Note: Both left and right-controlled gas components are
illustrated together in order to compare their supply rough-in
locations.

2-1/2"

from Rear Edge

of Cutout

• If local codes permit, more than one cooktop
can be used on the same branch circuit. See
local codes or the National Electrical Code
for circuit demand loads.

WARNING: DO NOT USE AN EXTENSION
CORD WITH THESE APPLIANCES.

ZGW124/ZGW125

ZEW176

13

Installation

Component Cooktop System

Step

1

Apply
Gasket Strip

Step

2

Remove
Knobs,
Gates

Step

3

Joining

Apply foam tape (supplied) on top surface of
countertop along all edges of the cutout.

• Turn all control knobs to OFF position.

• Carefully remove knobs by lifting straight up.

• Remove all grates, burner caps and vent
covers from components.

• Remove tape covering screw holes on the
downdraft grill.

Multiple
Cooktops

Remove
These Nuts

Cooktop
Joiner Strip

• Lay cooktops upside down on a clean flat
work surface.

• Remove endcaps on sides to be joined by
removing three nuts with a 5/16" nutdriver.
Discard nuts.

• Attach joiner strip to first cooktop by
tightening flanged nuts (supplied) over the
flanges.

Attach chassis support brace to equal-height
cooktops

• When attaching gas to gas, gas to radiant,

radiant to radiant or grill to grill, place
support brace as shown.

• Remove one screw from the center of each

cooktop chassis.

• Position brace and tighten screws.

• Repeat these steps for three cooktops.

• Place the two cooktops into the countertop
cutout.

• Slide the cooktops together so that the slots
in the joiner strip are engaged by the studs.
There should be no gaps between cooktops
and joiners. Press together firmly to assure a
tight fit.

• Place flanged nuts in end of 5/16" nutdriver.
Start nuts on studs and tighten from below.

14

Installation

Front of Countertop

Downdraft
Endcap

Component Cooktop System

Joining
Multiple
Cooktops

(Continued)

Attach chassis support brace to different
height cooktops

• When attaching grill to radiant or gas, place
the support brace as shown.

• Remove one screw from the center of each
cooktop chassis.

• Position brace and tighten screws.

• Repeat these steps for three cooktops.

Downdraft
Joiner Strip

Joining Cooktop to Downdraft Vent

• Remove all grates, knobs, burner caps and drip
pans.

• Lay cooktop upside down.

• Remove endcap on side of cooktop to be joined
by removing three nuts with a 5/16" nutdriver.

Gas or

Halogen

Grill

Remove
These Nuts

Important: Pre-tap holes in downdraft joiner and
endcaps by driving supplied screws through
holes and then backing out before installation.
This will make the joining process easier.

• Replace endcap with downdraft joiner strip
using the same three nuts.
–If the vent is to be installed at the end of

the countertop opening, attach downdraft
endcap to that side.

• Place the downdraft vent and cooktop into the
cutout.

• Remove two screws from the front of cooktop
chassis. Drive the two screws into holes below
the downdraft vent flange as shown. Use a
phillips screwdriver bit socket.

• If downdraft vent is installed at the end of the
cutout, secure the downdraft endcap to the
countertop by driving two phillips head screws
as shown.

• To finalize installation, proceed to “Securing
cooktop(s) to countertop.

• If additional cooktop(s) are to be installed,
proceed to “Joining additional cooktop to
downdraft vent or downdraft grill.”

15

Joining
Multiple
Cooktops

(Continued)

Installation

Component Cooktop System

Front of Countertop

Front of Countertop

Step

4

Secure
Cooktop(s)
to Countertop

Joining additional cooktop to downdraft vent
or to downdraft grill

• Remove endcap on the side of the next
cooktop to be joined.

• Pre-tap holes in downdraft joiner and
endcaps by driving supplied screws through
holes and then backing out before
installation. This will make the joining
process easier.

• Attach downdraft joiner strip to cooktop.

• Loosen screws on hold-down brackets at
each end of cooktop. Extend the bracket to
reach the underside of the countertop.
Tighten screws.

• Drive a long screw (2 lengths are provided)
through the bracket until screw is tight
against the bottom of the countertop.

• Place cooktop next to downdraft vent in the
cutout.

• Drive two phillips head screws into pre­tapped holes. Use a phillips screwdriver bit
socket.

• To install additional vent or cooktop(s),
refer to “Joining Multiple Cooktops.”

16

Installation

3-Pin Connector

Component Cooktop System

Step

5

Connect
Gas

Step

6

Connect
Electrical

• Install the supplied pressure regulator in gas
supply line as close to the cooktop inlet as
possible. Allowances for ventilation ducting
may be required.
–The regulator should be installed with the
arrow pointing in the direction of gas flow.

• Install a manual gas shut-off valve where it
will be easily reached. Be sure the user knows
where and how to shut off the gas supply.

• Appropriate flare union adapters are
required at each end of a flexible connector.

• Turn on the gas and check for leaks. Use a
liquid leak detector at all connections in the
system. A pressure test fitting is located on
the pressure regulator.

NOTE: If local codes permit, use 5 foot AGA­certified flexible metal gas supply line. 3/4" or 1/2"
I.D. to match gas supply line.

Do not use old, previously used flexible line.

Connect electrical to downdraft vent

• Connect the 3-pin plastic plug from the
blower/motor assembly to the 3-pin plastic
socket on the underside of the vent controls.

• Fasten the wire box on the conduit over the
plug and onto the bottom of the control box
with screws provided.

CAUTION

Do not use a flame to
check for leaks.

1-1/4"

Regulator

Solid Piping
or Flexible
Connector

Shut-Off
Valve

Pipe Stub

The blower conduit is long enough to reach
the vent connection when installed in the
cabinet below. The conduit will also reach
some blower installations below the cabinet
floor.

• If the blower conduit is not long enough to
reach the vent connection, the leads can be
extended.

To add conduit length:

• Install an appropriate junction box near the
blower.

• Remove the wire box from the end of the
blower conduit.

• Cut the leads approximately 3" from the
plug.

• Cut a length of electrical cable to reach the
junction box. Use 14 gauge min. electrical
cable (or conform to local codes).

• Attach the wire box and plug to one end of
the cable. Connect opposite end of cable to
blower leads in the junction box.

Vent

Electrical Box
(with vent)

Power Cable
(not included
with vent)

Junction Box
(not included
with vent)

To Blower

17

Installation

White

Black

Red

White or

Gray

Black

Branch Circuit Cooktop

3-Conductor Branch Circuit

Bare or

Green

+120V AC

-120V AC

Neutral

Component Cooktop System

Step

6

Connect
Electrical

(Continued)

3-Conductor branch circuit:

• Connect red lead to branch circuit red lead.

• Connect black lead to branch circuit black

lead.

• Connect bare or green conductor and white

lead * of the cooktop to branch circuit
neutral lead, which is white or gray.

4-Conductor branch circuit:

• Connect red lead to branch circuit red lead.

• Connect black lead to branch circuit black

lead.

• Break connection between cooktop white

lead to bare or green conductor.

• Connect cooktop white lead* to branch

circuit neutral lead, which is white or gray.

• Ground unit by connecting bare conductor

of cooktop to branch circuit bare or green
lead (ground lead).

The frames of these appliances are grounded
to neutral.

4-Conductor Branch Circuit

Branch Circuit Cooktop

+120V AC

Neutral

-120V AC

DND

Red

White or

Gray

Black

Bare or

Green

Red

White

Black

Bare or

Green

Electrical
Power
Requirements

* Updraft grill has no white neutral wire.
Connect only black, red and bare wires as
shown.

Model Voltage Frequency AMPS KW
ZGW124 120 60 Hz 1.0 ––
ZGW125 120 60 Hz 1.0 ––
ZEW145 208 60 Hz 11.0 2.3
ZEW145 240 60 Hz 12.7 3.0
ZEW155 240 60 Hz 7.3 1.8
ZEW166 240 60 Hz 13.5 3.3
ZEW176 120 60 Hz 1.8 ––

18

Installation

Component Cooktop System

Finalize
Installation

Install downdraft vent filter

• Place filter into the opening and on top of
the supports.

• Place grille over the filter.

Electric Components:

Push in and turn each knob to high position.
Make sure each element heats up.

Gas Components:

(Electrical connections should be complete).

• Plug power cord into outlet.

• Assemble burner(s) as shown.

• Check for proper ignition:

–Push in control knob and turn 90° to HIGH

position.

• First test may require some time, while air is
flushed out of the gas line.
–Turn knob to OFF.
–Repeat the procedure for each burner.

Filter

Grille Removed

Control Knob

Burner
Grate

Burner Cap

Trim Ring

CAUTION

the burners until all burner parts
are in place.

Do not operate

19

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. 49-8834-2
Dwg. No. 164D3333P076

®

Printed in USA

(N.D. 237) 8/01

953-0559-000 - Rev. 1