GE Monogram®
Installation
Instructions
Professional
Gas Cooktops
48" Natural Gas Models
ZGU48N4G
ZGU48N6R
ZGU48N6D
48" LP Gas Models
ZGU48L4G
ZGU48L6R
ZGU48L6D
36" Natural Gas Models
ZGU36N6
ZGU36N4R
ZGU36N4D
36" LP Gas Models
ZGU36L6
ZGU36L4R
ZGU36L4D
Design Information
Professional Gas Cooktops
These cooktops are factory set for either
natural gas or liquid propane gas. Order the
model for your installation situation.
Models
Available
48" Natural Gas Models:
ZGU48N4G
4 gas burners, grill and griddle
36" Natural Gas Models:
ZGU36N4D
4 gas burners and griddle
ZGU48N6R
6 gas burners and grill
ZGU36N4R
4 gas burners and grill
ZGU48N6D
6 gas burners and griddle
ZGU36N6
6 gas burners
48" Liquid Propane Gas Models:
ZGU48L4G
4 gas burners, grill and griddle
36" Liquid Propane Gas Models:
ZGU36L4D
4 gas burners and griddle
ZGU48L6R
6 gas burners and grill
ZGU36L4R
4 gas burners and grill
ZGU48L6D
6 gas burners and griddle
ZGU36L6
6 gas burners
All models require the installation of a
Accessory
Requirements
22" High Backguard With
Warming Shelf
backguard or trim. A backguard/ trim should be
ordered at the same time as the cooktop. Both should
be on site at the time of installation.
48" backguards, order one:
ZXC1B48
1/ 2" trim backguard (required for island installations
or installations where back wall is non-combustible;
such as brick, ceramic tile, marble, etc).
ZXC12B48
12" high backguard
ZXC22B48
12" High Backguard
22" high backguard with warming shelf (2 piece)
36" backguards, order one:
ZXC1B36
1/ 2" trim backguard (required for island installations
or installations where back wall is non-combustible;
such as brick, ceramic tile, marble, etc).
ZXC12B36
12" high backguard
1/2" Trim
ZXC22B36
22" high backguard with warming shelf (2 piece)
Installation Note:
For approved installations to non-combustible back wall materials, consult
material representative to ensure that the material has appropriate resistance
to staining and/ or discoloration.
3
Design Information
Professional Gas Cooktops
Product
Dimensions
& Clearances
47-7/8"
26-5/8"
8-7/16"
48" Wide Hood
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13" Max.
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36" Min. to
Combustible
Material From
Cooking
Refer to Hood
Installation
Instructions
12" Min. to
Combustible
Material
18" Min.
Surface
Each Side
2"
17"
48" Wide Models
46-1/8"
7/8"
8"
22-3/4" Min.
Cooking Surface
Electric/Gas
Supply
2-1/2"
26-5/8"
8-7/16"
35-7/8"
36" Wide Hood
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13" Max.
12" Min. to
36" Min. to
Refer to Hood
Installation
Instructions
Combustible
Material From
Cooking
Surface
18" Min.
Combustible
Material
Each Side
36" Wide Models
2"
7"
35"
Cooking Surface
1/2"
8"
22-3/4" Min.
Electric/Gas
Supply
2-1/2"
26-5/8"
12" Min. to Combustibles
Without Backguard or 0"
to Non-Combustible Wall
10"
2-1/2"
21-1/4"
12"
36" Min.
to Combustibles
High
Shelf
with 1/2" Trim
36" Min.
to
Combustibles
Low Back
1/2" Trim
0" Clearance
4
Installation Preparation
Professional Gas Cooktops
These cooktops can be installed in standard
24" or deeper 25" cabinets.
• The stainless surface of the cooktop will be
1/ 2" higher than adjacent countertop.
• Cooktop fits flush to rear of cutout, no
additional support is required.
Installation
Options
• In 24" deep cabinets, the front of the
cooktop will project approximately 1-7/ 8"
beyond the front of the countertop.
• In 25" deep cabinets, the cooktop will be
flush with the front of the countertop.
Cooktop
1/2" Above Adjacent
Countertops.
26-5/8"
21-1/4"
High
Back
Low Back
Front Projects Outward as Shown
From Standard Depth Cabinets.
12"
Countertop
Level
Cooktop
8-7/16"
1/2"
1/2" Above Adjacent
Countertops.
3" to Center Line
of Gas Inlet
22-3/4"
1/2"
23-1/4"
Flush With Cabinet Front
2-1/2"
Cabinet Face - Projecting Control Panel
Cabinet Face - Flush Control Panel
Front Flush With Cabinets - a Minimum
of 25-3/4" Cabinet Depth Required
• Clearance between cooktop and side wall or
combustible material must be at least 12" on
each side.
• These cooktops require 8" free space below
the countertop.
Refer to “Dimensions and Clearances” for
appropriate placement and necessary clear-
ances when planning the installation.
• Cabinetry can not be installed directly above
the cooktop.
Advance
Planning
• If the cooktop is installed in an island:
–Allow 12" min. clearance at the back to
combustible materials.
–Allow 36" min. above the cooking surface to
combustible materials.
• We recommend the installation of a vent
hood above the cooktop surface.
–The vent hood should be at least 24" deep.
–The vent hood should be the same width as
the cooktop.
–For 48" models, we recommend the vent
hood blower be 1200 CFM.
–For 36" models, we recommend the vent
hood blower be 600 CFM.
• Refer to hood installation instructions for
height dimensions.
• Installation must conform with local codes.
In the absence of local codes, the gas
cooktop must comply with the National Fuel
Gas Code, ANSI Z223.1-1990.
A.G.A. approved.
• Working areas adjacent to the cooktop
should have 18" minimum clearance
between countertop and cabinet bottom.
5
Installation Preparation
Professional Gas Cooktops
• Gas-resistant pipe joint sealant
• 5 foot, 5/ 8" AGA-certified flexible metal gas
supply line. (Length must comply with local
codes.)
–If required by local codes, use solid pipe
fittings.
Note: Purchase new flexible line. DO NOT
USE OLD, PREVIOUSLY USED FLEXIBLE
LINE.
• Saw
• Measuring tape
• Carpenter’s square
• Pipe and fittings as required.
• Manual gas line shut-off valve.
• Gas pressure regulator (supplied)
• Large flat-blade screwdriver
• Pipe wrench
Tools &
Materials
Required:
Gas Supply:
7" for 36" Models
17" for 48" Models
Power
Supply
Locations
• The natural gas models are designed to
operate at 6" to 14" water column pressure.
• The liquid propane models are designed to
operate at 11" to 14" water column pressure.
A regulator is required at the L.P. source to
provide a maximum of 14" water pressure to
the range regulator.
2"
Gas Line
to Cooktop
• These gas cooktops are supplied with 1/ 2"
NPT female gas connection located at the
left rear corner.
• A minimum 5/ 8" dia. metal flexible line is
required.
16"
–Use 5-foot long 5/ 8" flexible metal tubing.
(Length must comply with local codes.)
• For rigid connection, locate the pipe stub
within area shown.
Locate Gas Supply 2" Maximum
Protrusion From Wall or on Floor 2" From Wall
• Install a manual shut-off valve in the gas line,
in an easily accessible location.
Electric Supply:
• Locate the electric supply within the area
shown or within reach of the cooktop’s six
foot power cord.
These cooktops must be supplied with 120
volt, 60 Hz., and connected to a individual,
properly grounded branch circuit protected
by a 15 amp circuit breaker or time delay fuse.
• To avoid tangling cord with items stored in
the cabinet, locate the receptacle on rear
wall, inside the cabinet.
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
shock hazard from this appliance.
Receptacle Box Cover Plate
Three Prong Plug
If the electrical service provided does not
meet the above specifications, it is recom-
mended that a licensed electrician install an
approved outlet.
DO NOT UNDER ANY CIRCUMSTANCES,
CUT OR REMOVE THE THIRD (GROUND)
PRONG FROM THE POWER CORD.
Three Prong Receptacle
DO NOT USE AN EXTENSION CORD WITH
THIS APPLIANCE.
6
Installation
Professional Gas Cooktops
• Flatten the carton and use a piece as a pad
on the bottom and back of the hand-truck.
Lift the cooktop onto the hand-truck
standing on its end, with the bottom of the
cooktop resting against the back of the
hand-truck.
Use a hand-truck to move this cooktop.
Step
Before moving the cooktop indoors:
• Remove outer carton and packing.
• Remove the straps holding the cooktop to the
skid.
• Remove the grates and drawers below the
knobs.
• Remove grill and/ or griddle covers. DO NOT
ATTEMPT TO REMOVE A GRILL OR
GRIDDLE ASSEMBLY.
1
Remove
Packaging
Move the cooktop indoors:
If door and passageways into the installation
location are less than 30" wide, remove the
cooktop knobs.
26-5/8"
8-7/16"
35-7/8"
47-7/8"
26-5/8"
8-7/16"
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Step
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22-3/4"
22-3/4"
Cut the
Countertop
Opening
1/2"
2-1/2"
7/8"
35"
2-1/2"
46-1/8"
8"
8"
48" wide models are designed to fit in 48" or wider base cabinets
36" wide models are designed to fit in 36" or wider base cabinets
Measure carefully when cutting the countertop.
Make sure sides of the opening are parallel.
• These cooktops requires 8" free space below the
countertop.
Adjacent Cabinet
and Countertop
• These Cooktops are designed to hang from the
countertop from its rear and side flanges.
• Smooth any rough edges on the countertop
before installing the cooktop.
–Formica countertop edges must be finished.
The countertop must be strong enough to
support the weight of the cooktop.
Counter Sunk
Screws
• Support cleats can be secured to cabinet sides.
OR
• Build a support deck or box inside the cabinet
which will support the weight of the cooktop.
–Build the support box using a solid material,
cut a 5" x 5" square in the left rear corner for
the gas inlet and power cord clearances.
7
Installation
Professional Gas Cooktops
• Lower the cooktop into the opening. Make
sure the cooktop is evenly seated and sup-
ported. A side frame gasket will seal the
cooktop to the countertop.
• “L” brackets with screws are provided to
secure the cooktop to the countertop or to
adjacent cabinetry.
–Alternate screw hole locations on the sides
of the cooktop allow for varying thicknesses
of countertops or side cleats.
Step
3
Install
the
Alternate Bracket
Screw Holes
Cooktop
• Select the bracket location, secure the
bracket to the cooktop with 2 screws.
• Drive one screw through the bottom of the
“L” bracket and into countertop or side
cleats.
“L” Bracket
A manual shut-off valve must be installed where
it will be accessible.
Flex or Rigid Gas
Line To Regulator
Step
4
Connect
Cooktop
to Gas
Assure that gas is turned off at the shut-off valve.
• Lift and remove all open top burners to reveal
the gas inlet location at the left rear corner.
• Pull the flexible metal gas line through the back
or bottom of the cooktop until it meets the
regular.
Regulator
• Connect flexible metal connector to incoming
gas line pipe stub.
• Turn on gas and check for leaks:
–Use a liquid leak detector at all joints and
connections in the system.
2 Screws
A backguard is required for all installations.
• Remove the top cap of the backguard by
backing out 2 counter sunk screws. Lift off
the top cap and set aside. Retain screws.
• Insert the backguard into the channel on the
back of the cooktop.
• Fasten with screws at the bottom, through
the cooktop and into the backguard.
(If a griddle is present, secure with 2 screws
on the left and center of the cooktop.)
• Secure the backguard to the wall with 3
screws at the top of the backguard.
• Place the top cap in position and re-install
2 countersunk screws. (12" backguard
shown.)
Top Cap
Step
5
Install the
Cooktop
3 Screws
3 Screws
Backguard
8
Installation
Professional Gas Cooktops
Step
Plug power cord into properly grounded
receptacle.
6
Connect
Electrical
• Replace the burner bowls and burner caps.
• Adjustments should not be required, unless
vibration during transit or variations in local
gas supply make minor adjustments neces-
sary.
Igniter
Step
Burner
7
Main Burner
Venturi (rear)
Assemble
Burners,
Check
CAUTION: Burner adjustments must be made
by a qualified technician at the time of
installation. Extreme care should be used if
adjustments are made after installation.
Igniter
Burner
Simmer Burner
Venturi (rear)
Ignition
• Burner flames should be blue and stable with
no yellow or yellow tips, excessive noise or
lifting of the flame from the burner. If any of
these conditions exist, check that the air
shutter or burner ports are not blocked. If
one of these conditions continues, adjust the
air shutter as required.
Air Shutter
Main Burner
Venturi (front)
Simmer Burner
Venturi (front)
–If the flame is too yellow, there is
insufficient air flow, adjust the shutter
counterclockwise to increase air inlet.
–If the flame is noisy or tends to lift away
from the burner, there is too much air. Turn
the shutter clockwise to reduce air.
9
Installation
Professional Gas Cooktops
Adjustable low setting
• Grip the shaft with pliers and turn counter-
clockwise to lower the flame, or clockwise to
increase the flame.
CAUTION: Do not turn the flame so low that
it goes out, causing the igniter to spark.
The open top burners and grill valves have an
adjustable low setting. Each valve is individu-
ally tested and adjusted before it is shipped.
Minor adjustments may be required due to
Step
7
Assemble
Burners,
Check
fluctuations in local gas pressure. Adjustments • When the desired setting is made, replace
to increase or decrease gas flow may be
necessary.
the knob and turn burner off.
Ignition
(continued)
• Turn knob counter-clockwise to the LITE
position.
• Once lit, turn the know back to the “LOW”
position.
• Remove the knob.
• Insert a thin-blade flat screwdriver into
the valve shaft. (3/ 32" blade width
recommended.)
Place the burner grates into operating position.
Press corner of the grate to the cooktop. The
grates should be seated and should not rock.
Finalize
Installation
The grill and griddle are secured with screws at
the front. They are designed to be stationary
and should not to be removed.
The griddle has two leveling screws beneath the
rear flue cover which can be used to adjust to
the desired slope. The center screw is for
shipping purposes only and should be removed.
10
Notes
Professional Gas Cooktops
11
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.
®
Monogram.
We bring good things to life.
GE Consumer Products
General Electric Company
Louisville, KY 40225
© 2003 General Electric Company
Pub. No. 49-8812-6
Dwg. No. 164D3333P056
(N.D. 760) 4/03
10659 - Rev. 6
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