GE ZGU365 User Manual
GE Monogram
Installation
Instructions
®
36" Downdraft
Gas Cooktops
Models
ZGU365
CAUTION
WARNING
ATTENTION
CAUTION
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 Owners Manual
for future reference.
This appliance must be properly grounded. See “Power Supply”, page 8.
Cet appareil doit être correctement mis à la terre. Voir << Alimentation électrique >> à la page 8.
If you have a question concerning the installation of this product, call the GE Answer
Center® Consumer Information Service at
800.626.2000, 24 hours a day, 7 days a week. If
you received a damaged cooktop, you should
immediately contact your dealer or builder.
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. Don’t touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.
FOR YOUR SAFETY
Do not store or use combustible materials,
gasoline or other flammable vapors and
liquids in the vicinity of this or any other
appliance.
•Installation of this cooktop must conform
with local codes, or in the absence of local
codes, with the National Fuel Gas Code,
ANSI Z223.1, latest edition. In Canada,
installation must conform with the current
Proper installation is the responsibility of the
installer. Product failure due to improper
installation is not covered under the GE
Appliance Warranty. See the Owners 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.
Natural Gas Installation Code, CAN/CGAB149.1 or the current Propane Installation
Code, CAN/CGA-B149.2, and with local
codes where applicable.
•This cooktop has been design-certified by
the American Gas Association according to
ANSI Z21.1, latest edition and Canadian Gas
Association according to CAN/CGA-1.1
latest edition.
•Your cooktop must be electrically grounded
in accordance with local codes or, in the
absence of local codes, in accordance with
the National Electrical Code (ANSI/NFPA
70, latest edition). In Canada, electrical
grounding must be in accordance with the
current CSA C22.1 Canadian Electrical Code
Part 1 and/or local codes.
Contents
2
Design Information
Models Available ........................................................... 3
Accessories ..................................................................... 3
Dimensions and Clearances ......................................... 3
Advance Planning ......................................................... 4
Ductwork Advance Planning........................................ 4
Tools and Materials Required...................................... 4
Cabinetry/Ductwork
Cut the Opening ........................................................... 5
Venting Options ............................................................ 6
Ductwork Fittings .......................................................... 7
Power Supply Locations ............................................... 8
Installation
Step 1: Install Downdraft Vent ..................................... 9
Step 2: Install Ductwork ............................................. 10
Step 3: Install Pressure Regulator.............................. 10
Step 4: Install the Cooktop ........................................ 11
Step 5: Electrical Connections ................................... 12
Step 6: Connect Power ............................................... 12
Step 7: Assemble Burners, Check Ignition ............... 12
Step 8: Install Filters,
Check Operation of Downdraft ................................. 13
JXRB57 Kit, Indoor Remote Blower Location ........ 14
JXBC57 Kit, Outdoor Remote Blower Location ...... 17
Design Information
Gas Downdraft Cooktop
Models
Available
Accessories
Dimensions
and Clearances
ZGU365
36" gas downdraft cooktops
These models are shipped for natural gas
operation. They can be converted to liquid
propane. (Order JXLP56 conversion kit.)
These gas downdraft cooktops are equipped
with an vent system which can be retracted
when not in use.
•JXBA56WW, white or JXBA56BB, black
motor and blower assembly is required for
both models. Be sure to order the color that
matches the cooktop.
8-3/4"
15"
2"
36"
19-3/4"
2"
•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 of or
below the cabinet floor.
•JXBC57 optional outdoor cover accessory
may be ordered for installation of blower
and motor assembly on the outside wall.
13"
Max.
30"
Min.
18"
Min.
7-1/2"
3-1/4"
12-3/8"
5-3/8"
2-1/4"
6-3/8"
7"
2"
3-1/4"
8-1/2" Lift
3-7/8" Min.
From Cooktop
to Rear Vertical
Combustible
When Installed
8" Min. to
Wall When
Installed Both Sides
1-1/2" Min.
When Installed
36"
33-3/4"
14-3/4"
27"
26"
3
Design Information
Gas Downdraft Cooktop
Advance
Planning
The combined installation of a downdraft vent
and cooktop require careful consideration.
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.
Clearances
•The downdraft system with blower, motor
and ductwork will occupy the cabinet below
the cooktop. Drawers cannot be installed
below this cooktop.
•Refer to “Dimensions & Clearances” for
information on appropriate placement and
necessary clearances when planning installation.
•Avoid placing cabinetry directly above the
cooktop when possible.
•If cabinetry is used above 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
Base Cabinet Requirements:
This installation requires a 24" min. deep
cabinet base. The cabinet must be at least 36"
wide.
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.
In the absence of local codes, the gas cooktop
must comply with the National Fuel Gas Code,
ANSI Z223.1, latest edition.
Ductwork Advance Planning
Prepare ductwork to vent to outdoors:
•Use the shortest and straightest duct run
possible:
–Duct run should not exceed equivalent
length of 150 feet.
–Refer to “Duct Fittings” chart to calculate
equivalent length for various duct
configurations.
Gas and Electrical Locations
Plan the placement of the electrical outlet and
gas carefully. Gas and electrical outlets cannot
be placed on the back wall of the cabinet
because it may interfere with the downdraft
plenum.
•The downdraft blower system is designed to
use 3-1/4"x10" 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.
•Refer to “Power Supply Locations” page 8 for
details.
4
Cabinetry/Ductwork
Gas Downdraft Cooktop
Tools and
Materials
Required
Cut the
Opening
•Self-adhesive gasket
(supplied)
•Two clamping
brackets and
screws (supplied)
•Gas pressure
regulator (supplied)
•Large flat-blade
screwdriver
•Saw
Top View–Countertop Surface
2-9/16"
20-11/16"
Cutout
Depth
18-1/8"
Cooktop
Cutout
Depth
3/4" Cooktop Overlap
•Carpenter’s square
•Pipe wrench
•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 adaptor for
connection to
supply line
1/4"
34" Vent Cutout
Cooktop Area Cutout
36"
34-1/2"
•Duct work to suit the
installation
•1/2" NPT x 3/4"
I.D. or 1/2" I.D.
flare union adaptor
for connection to
regulator
•Gas-resistant pipe
joint sealant
1/4"
1/4" Overlap
21-3/4"
Total Flat
Surface
Required
•5 foot AGA-certified
flexible metal
appliance connector, 3/4" or 1/2"
I.D. to match gas
supply line:
–If required by local
codes, use solid
pipe with fittings.
Note: Purchase new
flexible line, DO
NOT USE OLD,
PREVIOUSLY USED
FLEXIBLE LINE.
4-5/8" Cooktop
Cutout to
Rear Vertical
Combustible
1/8" Gap
Surface
2-1/4" Min. Clearance to Cutout
Front Edge of Countertop
Measure carefully when cutting countertop.
Make sure sides of opening are parallel and
rear and front cuts are exactly perpendicular
to sides.
•The Monogram gas downdraft cooktop is
designed to fit in a 36" or larger base
cabinet.
•The countertop cutout for the cooktop
must be:
–34-1/2" at the front of the counter and,
–34" at the back
–18-1/8" front to back notch
–20-11/16" front to back of cutout
The notches at the back of the cutout are:
–2-9/16" forward and 1/4" to the inside.
Follow the illustration shown.
8-13/16" Min. Cutout
to Wall Both Sides
•Allow at least 4-5/8" clearance between back
of cutout and combustible wall.
•Allow at least 8-13/16" clearance from right
and left sides of cutout to adjacent wall.
•Allow at least 2-1/4" clearance between front
of cutout and front edge of countertop.
Caution:
countertops and cabinets
should withstand 200°F heat
generated by the cooktop.
Wall coverings,
5
Ductwork
Loosen Screws to Rotate
30° to Left or 30° to Right
Discharge Right
Discharge Left
Gas Downdraft Cooktop
Venting
Options
• 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.
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.
Loosen Screws to
Adjust Blower
Left to Right
Nut Location
Inside the Blower
Discharge
6
• 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.
30" Rotation Left or Right
Discharge Down
(as Supplied)
Order JXRB57 for installation of the blower and motor
below the floor.
Order JXBC57 for installation of the blower and motor
outdoors.
Ductwork
Gas Downdraft Cooktop
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.
Gas Downdraft
Cooktop
Model ZGU365
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
7
Gas and Electrical Supply
Gas Location
29-1/2"
Electrical
Outlet
12" Above
Cabinet Floor
Do Not Locate Gas or Electrical
Connections Within Shaded Area
34"
14"
4"
Gas Downdraft Cooktop
Power Supply
Locations
Gas supply:
These cooktops are designed to operate on
natural gas at 4" of water column pressure or
on LP gas at 10" of water column pressure.
–These cooktops are shipped from the
factory set for natural gas. If you decide
to use this cooktop with LP gas, conversion
adjustments must be made by a service
technician or other qualified person.
JXLP56 conversion kit is required for
LP operation.
•The pressure regulator must be connected in
series with the manifold of the cooktop and
must remain in series with the supply line
regardless of type of gas being used.
For proper operation, the maximum inlet
pressure to the regulator must be no more
than 10" water column pressure for natural
gas and 14" water column pressure for LP gas.
•When checking the regulator, the inlet
pressure must be at least 1" greater than the
regulator output setting.
–If the regulator is set for 4" of water column
pressure, the inlet pressure must be at
least 5".
–If the regulator is set for 10" of water
column pressure, the inlet pressure must
be at least 11".
For ease of installation, and if local codes
permit, the gas supply line into the cooktop
should be 1/2" or 3/4" ID flexible metal
appliance connector, three to five feet long.
Note: Purchase new flexible line. DO NOT
USE OLD, PREVIOUSLY USED FLEXIBLE
LINE.
•Make gas connection through rear wall, or
on cabinet floor at rear, as illustrated.
Electrical supply:
•A properly-grounded 3-prong receptacle
should be located within reach of cooktop’s
four foot power cord.
– Locate the receptacle inside the cabinet on
the right side wall. See illustration.
IMPORTANT: (Please read carefully).
FOR PERSONAL SAFETY, THIS APPLIANCE
MUST BE PROPERLY GROUNDED.
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 hazard from this appliance. 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.
8
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