Smeg RTU366GX User manual

Table of Contents
3
EN
1 Installation 11
1.1 Cabinet clearances 11
1.2 Overall dimensions 13
1.3 Electrical requirements 14
1.4 Gas supply requirements 15
1.5 Burner and nozzle characteristics table 18
1.6 Conversion to Propane Gas (LPG) 19
1.7 Minimum adjustment 22
1.8 For the installer 23
WARNING: If the instructions in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or death.
- Do not store or use gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a qualified
installer, service agency or gas supplier.
NOTE: This appliance must be installed solely and exclusively by a qualified
technician. Any technical procedures must be carried out by an authorized
technician.

Important Safety Instructions
4
The safety messages will inform you of potential hazards, on how to avoid the risk of injury
and what can occur if the instructions are not followed.
READ AND SAVE THESE INSTRUCTIONS - Your safety and the safety of
others are very important.
We have provided many important safety messages throughout this manual and
on the appliance.
Read all the instructions before using the appliance and always obey all safety
messages.
RECOGNIZE SAFETY INFORMATION
This is a safety alert symbol. This symbol alerts you to potential hazards that can
result in severe personal injury or loss of life.
UNDERSTAND SIGNAL WORDS
A signal word - DANGER, WARNING or CAUTION - is used with the safety alert
symbol. DANGER denotes the most serious hazards. It means you could lose your
life or be seriously injured if you do not immediately follow the instructions.
WARNING means you could lose your life or be seriously injured if the instructions
are not followed. CAUTION indicates a potentially hazardous situation which, if
not avoided, could result in minor to moderate injury.
WARNING
• This appliance is intended for use in the home only.
• Use this appliance only for its intended purpose.
The manufacturer cannot be held liable for damage
caused by improper use of this appliance.
• This appliance complies with current safety
regulations. Improper use of this appliance can
result in personal injury and material damage.
• Read all the instructions before installing or using
the appliance for the first time.
• Keep these operating instructions in a safe place
and pass them on to any future user.

Important Safety Instructions
5
EN
IMPORTANT: Installation, gas connections and grounding must conform to applicable
codes. Observe all codes and ordinances in force.
• IMPORTANT: THE APPLIANCE MUST BE INSTALLED BY A QUALIFIED INSTALLER.
• INSTALLER: LEAVE THESE INSTRUCTIONS WITH THE APPLIANCE AFTER
INSTALLATION IS COMPLETE.
• IMPORTANT: SAVE FOR THE LOCAL INSPECTOR’S USE.
NOTE: This appliance is manufactured for use with natural gas. To convert the
appliance to LP/Propane gas, see the instructions in the “Conversion to Propane
Gas (LPG)” section.
The proper gas supply connection must be available. See “Gas supply
requirements”.
WARNING: For your safety, the instructions contained in this
manual must be followed to minimize the risk of fire or
explosion and to prevent property damage, personal injury
or loss of life.
NOTE: This appliance is NOT designed for installation in manufactured (mobile)
homes or in recreational vehicles (RVs).
DO NOT install this appliance outdoors.Improper installation is not covered
by the warranty.
WARNING
• If the information in this manual is not followed
exactly, fire or shock may result causing property
damage or personal injury.
• Do not repair, replace or remove any part of the
appliance unless specifically recommended in the
manuals. Improper installation, service or
maintenance can cause injury or property damage.
Refer to this manual for guidance. All other servicing
should be done by an authorized servicer.
• To reduce the risk of fire, electrical shock, personal
injury, or damage when using the appliance, follow
basic safety precautions, including the following.

Important Safety Instructions
6
• Do not store or use gasoline or other
flammable vapors and liquids near this
or any other appliance. Explosions or
fires could result.
• Read all instructions
• Proper installation is your responsibility.
Have a qualified technician install and
ground this appliance in accordance
with these installation instructions.
• Any additions, changes or conversions
required in order for this appliance to
satisfactorily meet the application needs
must be made by a qualified technician.
• It is the responsibility of the installer to
comply with installation information
specified on the model/serial ID plate.
The ID Plates are visibly located on the
back of the appliance. These ID plates
must never be removed.
• Test the appliance immediately after
installation, following the instructions in
this booklet. If the appliance does not
work properly, disconnect it from the
electrical power supply and call the
service center. DO NOT attempt to
repair the appliance.
• All adjustments and servicing must be
performed by qualified installers or
service technicians.
• Do not leave the packing material
around the home. Sort the various items
of waste and take them to the nearest
specialized waste collection facility.
• Do not store items of interest to children
in the cabinets above the appliance
Children could be seriously burned if
they climb on the appliance to reach
items.
• To eliminate the need to reach over the
surface burners, cabinet storage space
above the burners should be avoided.
• Make sure the wall coverings around the
rangetop can withstand the heat
generated by rangetop.
Safety codes and standards
This appliance complies with one or more
of the following Standards:
ANSI Z21.1 / CSA 1.1 Household
Cooking Gas Appliances.
• It is the responsibility of the owner and
the installer to determine if additional
requirements and/or standards apply to
specific installations.
• Installation must conform with local
codes or, in the absence of local codes,
with the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 or, in Canada, the
Natural Gas and Propane Installation
Code, CSA B149.1.
CAUTION: To eliminate the risk of
burns or fire caused by reaching
over hot surface burners, do not
store items directly above the
rangetop surface.
WARNING
Never leave children alone or
unattended in the area where an
appliance is in use. As children
grow, teach them the proper, safe
use of all appliances.

Important Safety Instructions
7
EN
• ELECTRICAL GROUNDING
REQUIRED: The appliance must be
electrically grounded in accordance
with local codes or, in the absence of
local codes, with the National Electrical
Code, NFPA 70 latest edition or, in
Canada, the Canadian Electric Code,
CSA C22.1-02. section.
• Make sure your appliance is installed
and grounded properly by a qualified
installer or service technician.
• To ensure that the electrical system is
adequate and conforms with the
national ANSI / NFPA 70 ELECTRICAL
CODE – latest edition – Or the
CANADIAN ELECTRICAL CODE,
C22.11 – 1 and C22.2 No. 01982 –
or latest edition – and all local codes
and ordinances. IMPORTANT: Observe
all codes and ordinances in force.
Electric Safety
• Personal injury or death from electrical
shock may occur if the appliance is not
installed by a qualified installer or
electrician.
• Be sure your appliance is properly
installed and grounded by a qualified
technician. Installation, electrical
connections and grounding must comply
with all applicable codes.
• Before installing, turn power OFF at the
service panel.
• Lock service panel to prevent power
from being turned ON accidentally.
• For appliances equipped with a cord
and plug, do not cut or remove the
ground prong. It must be plugged into a
matching grounding type receptacle to
avoid electrical shock. If there is any
doubt as to whether the wall receptacle
is properly grounded, the customer
should have it checked by a qualified
electrician.
• Do not use an extension cord.
• Do not use an adapter.
• If required by the National Electrical
Code (or Canadian Electrical Code),
this appliance must be installed on a
separate branch circuit.
• The circuit breaker should have a
contact separation of at least 3 mm on
all poles.
• INSTALLER – show the owner the
location of the circuit breaker or fuse.
Mark it for easy reference.
• Refer to rating label for more information.
Gas safety
• Install a gas shutoff valve near the
appliance. It must be easily accessible in
an emergency.
WARNING
Before you plug the electrical cord
into an outlet, make sure that all the
appliance controls are in the OFF
position. WARNING
Burning gas cooking fuel
generates some by-products
which are on the list of substances
which are known by the State of
California to cause cancer or
reproductive harm. To minimize
exposure to these substances,
always operate this unit according
to the instructions contained in this
booklet and provide good
ventilation.

Important Safety Instructions
8
• Leak testing must be conducted by the
installer according to the instructions in
this manual.
• The appliance and its individual shutoff
valve must be disconnected from the gas
supply piping system during any
pressure testing at pressures in excess of
½ psi (3.5 kPa).
• The appliance must be isolated from the
gas supply piping system by closing its
individual manual shutoff valve during
any pressure testing of the gas supply
piping system at test pressures equal to
or less than ½ psi (3.5 kPa).
• The minimum supply pressure must be 1"
water column above the manifold
pressure printed on the rating label. The
maximum supply pressure must not
exceed 14.0 inches water column (34.9
Millibars).
Proposition 65 Warning:
This product may contain a chemical known
to the State of California, which can cause
cancer or reproductive harm. Therefore, the
packaging of your product may bear the
following label as required by California:
Related Equipment Safety
• The appliance should only be used if
installed by a qualified technician in
accordance with these installation
instructions and all applicable
regulations and codes. The
manufacturer is not responsible for
damages resulting from incorrect
installation.
• Remove all tape and packaging before
using the appliance. Destroy the
packaging after unpacking the
appliance. Never allow children to play
with packaging material.
• Never modify or alter the construction of
the appliance. For example, do not
remove adjustable legs, panels, wiring
or anti-tip brackets/screws.
• To eliminate the risk of burns or fire by
reaching over heated surface units,
cabinet storage space located above
the surface units should be avoided. If
cabinet storage is to be provided, the
risk can be reduced by installing a hood
that projects horizontally a minimum of 5
inches (127 mm) beyond the bottom of
the cabinet. Verify that cabinets above
the cooktop are a maximum of 13" (330
mm) deep.
• When installing the appliance over a
single oven, be sure to follow both the
oven’s and cooktop’s installation
manuals.
Ventilation Recommendations
• Do not obstruct air vents or openings for
heat exhaust.
• Never use your rangetop for warming or
heating the room. Prolonged use of the
rangetop without adequate ventilation
can be dangerous.
State of California Proposition
65 Warning:
Cancer or Reproductive Harm -
www.P65Warnings.ca.gov
CAUTION: This unit is designed as
a cooking appliance. For safety
purposes, never use it for warming
the room or as a space heater.

Important Safety Instructions
9
EN
• We strongly recommend the installation
of a ventilation hood above this
appliance. The hood must be installed
according to instructions furnished with
the hood.
• CAUTION: The appliance should not be
installed with a ventilation system that
blows air downward toward the burners.
This type of ventilation system may cause
ignition and combustion problems with
the gas cooking appliance resulting in
personal injury or unintended operation.
Propane Gas Installation
• The propane gas tank must be equipped
with its own high pressure regulator. In
addition, the regulator supplied with this
unit must also be used.
• The appliance is shipped from the
factory for use with natural gas. It must
be converted for use with propane. A
qualified technician or installer must do
the conversion.
• This appliances can operate up to an
altitude of 10,000 ft. (3048 m.)
elevation above sea level. To use with
propane gas, the appliance must be
converted in accordance with the
propane conversion instructions.
High altitude installation
• This appliances can operate up to an
altitude of 10,000 ft. (3048 m.)
elevation above sea level. If desired, for
altitudes above 2,000 ft (610 m)
elevation above sea level, adjustments
may be made.
• Burners should be checked at the lowest
setting, if the flame is not stable the
simmer should be increased until the
flame is stable. This can be done by
adjusting the bypass screw in the valve.
If flame performance is satisfactory,
adjustment will not be required.
• It is required that a Certified Professional
make the high altitude adjustments
during installation.
For Massachusetts Installation
In the State of Massachusetts, the following
installation instructions apply:
• Installation must be performed by a
qualified or licensed contractor, plumber
or gas fitter qualified or licensed by the
state, province or region where this
appliance is being installed.
• Shut-off valve must be a “T” handle gas
cock.
• Flexible gas connector must not be
longer than 36 inches.
• Installer - show the owner where the gas
shut-off valve is located.

Important Safety Instructions
10
How to read the user manual
This user manual uses the following reading conventions:
1. Use instruction sequence.
• Single use instruction.
SAVE THESE INSTRUCTIONS
Installation
Information for the qualified
technician: installation, operation
and inspection.
Safety instructions
Information
Advice

Installation
11
EN
1 Installation
1.1 Cabinet clearances
1. min. clearance from the sides of
appliance to side wall or other
combustible material;
2. min. cabinet opening width;
3. upper cabinet to countertop;
4. Min. 36” (914 mm) clearance between
the top of the cooking surface and the
bottom of an unprotected wood or metal
cabinet. Min. 30” (762 mm) when
bottom of wood or metal cabinet is
protected by not less than ¼” (0.64 cm)
flame retardant millboard covered with
not less than No. 28 MSG sheet steel,
0.015" (0.4 mm) stainless steel, 0.024"
(0.6 mm) aluminum or 0.020" (0.5 mm)
copper. 35" (889 mm) min. clearance
between the top of the cooking surface
and the bottom of an unprotected wood
or metal cabinet.
5. max. upper cabinet depth.
Countertop cutout for gas and electric
connections
36” models 30”models
Amin. 36” min. 914
mm min. 30” min. 762 mm
Bmin. 24” - min. 610 mm
C1min. 20” - min. 508 mm
G2min. 36” min. 914
mm min. 30” min. 762 mm
I3min. 18” - min 457 mm
L4See note 4.
M5max. 13” - max. 330 mm
N5max. 13” - max. 330 mm
P7”3/8 - 187 mm
It is not allowed to install adjacent
products.
36” models 30”models
Amin. 36” min. 914
mm min. 30” min. 762 mm
Bmin. 24” - min. 610 mm
Qmin. 4” - min. 102 mm
Rmin. 12” - min. 305 mm

Installation
12
Mounting the safety bracket
The safety bracket is a device designed to
prevent the appliance from being
accidentally extracted to the outside.
1. Measure the width of the slot for the
appliance (see “Cabinet clearances”
clearance A).
2. Divide the measurement in half and draw
the midline on the surface of the cabinet.
3. Measure 3” (76mm) from the front edge
of the cabinet and draw a line
perpendicular to the midline.
4. Position the safety bracket centered in the
intersection point of the two lines just
drawn and then fix it with the two
supplied screws.
5. Place the appliance on the cabinet
recess.
Notes:
• The appliance must sit securely in the cut-
out and must not be able to move
around (e.g. during cleaning).
• To help prevent cosmetic damage place
plastic shipping cover back over
appliance prior to loading into
cabinetry.
• If additional construction is nearby the
plastic shipping cover can be used to
preserve cosmetic finish.
Location of gas and electric outlets
X: Gas Supply Line
Y: Grounded Outlet
N24”- 28” / 610 mm - 711 mm
S2” - 4” / 51 mm - 101 mm
T8” - 12” / 203 mm - 305 mm

Installation
13
EN
1.2 Overall dimensions
30” models
36” models
30” and 36” models
Location of gas and electric outlets (back
view)
30” models:
36” models:
1: Gas connection
2: Electrical connection
Check the location where the appliance is
to be installed. The appliance should be
positioned for convenient access in the
kitchen.
The cabinet opening dimensions that are
shown must be used. The indicated
dimensions are the minimum clearances.
When installing the rangetop under existing
cabinets that do not satisfy the minimum
cabinet clearances, install a hood over the
cooking surface to avoid burn hazards.
NOTE: Observe all governing
codes and ordinances.
Any openings in the wall or floor
where the appliance is to be
installed must be sealed.
Some cabinet and building
materials are not designed to
withstand the heat that the
appliance produces during
baking. Check with your builder or
cabinet supplier to make sure that
the materials used will not discolor,
delaminate or sustain other
damage.

Installation
14
An air curtain or other overhead hood,
which operates by blowing a downward
airflow onto a rangetop, shall not be used
in conjunction with the gas rangetop unless
the hood and rangetop have been
designed, tested in accordance with ANSI
Z21.1 and listed by an independent testing
laboratory for combination use. This type of
ventilation system may cause ignition and
combustion problems with the gas cooking
appliance resulting in personal injury or
unintended operation.
1.3 Electrical requirements
Make sure that the power line rating
matches the specifications indicated on the
ID plate. The ID Plates are visibly located
on the back of the appliances.
These ID plates must never be removed.
• Wire size and connections must conform
to the requirements of the National
Electrical Code, ANSI/NFPA 70
ELECTRICAL CODE (*) – last edition or
CSA Standard C22.1-94, Canadian
Electrical code, Part 1 (**) and CSA
C22.2 No. O-91 or latest edition and
all local codes and ordinances for the
kilowatt rating of the appliance.
IMPORTANT: Observe all governing
codes and ordinances.
• Your local codes and ordinances, of
course, take precedence over these
instructions. Complete electrical
connections according to local codes
and ordinances.
• lf codes permit and a separate
grounding wire is used, it is
recommended that the suitability of the
ground path be checked by a qualified
electrician.
• Check with a qualified electrician if you
are not sure whether the appliance is
properly grounded. Do not ground to a
gas pipe.
• A 120-volt, 60-Hz, AC-only, 15-
ampere, fused electrical supply is
required. A time-delay fuse or circuit
breaker is recommended. It is
recommended that a separate circuit
serving only this appliance be provided.
WARNING
Electrical shock hazard
• This appliance is equipped with a three-
prong grounding plug to protect you
against the risk of shocks and it should
be plugged directly into a properly
grounded receptacle. Do not cut or
remove the grounding prong from this
plug.
• Do not cut or remove the grounding
prong.
• Do not use an adaptor.
• Do not use an extension cord.
• Check with a qualified electrician if you
are not sure whether the appliance is
grounded.
FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD
RESULT IN LOSS OF LIFE, FIRE
OR ELECTRICAL SHOCK.

Installation
15
EN
Recommended Grounding Method
For your personal safety, this appliance
must be grounded. This appliance is
equipped with a 3-prong grounding plug.
To minimize possible shock hazard, the
cord must be plugged into a mating 3-
prong grounding receptacle, grounded in
accordance with the National ANSI/
NFPA 70 Electrical Code (latest edition*)
or the Canadian Electrical Code (CSA)**
and local codes and ordinances.
lf a mating receptacle is not available, it is
the personal responsibility and obligation of
the customer to have a properly polarized
and grounded 3-prong outlet installed by a
qualified electrician.
1.4 Gas supply requirements
This installation must conform with all local
codes and ordinances. In the absence of
local codes, installation must conform to
American National Fuel Gas Code, ANSI
Z223.1/NFPA 54 or, in Canada, the
Natural Gas and Propane Installation
Code, CSA B149.1.
If local codes permit, a flexible metal
appliance conductor with the new AGA or
CSA design certified, 4-5 feet (1.2-1.5 m)
long, 1/2" or 3/4" ID NPT, is
recommended for connecting this
appliance to the gas supply line.
Copies of the standards listed
above may be obtained from:
* National Fire Protection
Association, 1 Batterymarch Park,
Quincy, Massachusetts 02169-
7471
** CSA International, 8501 East
Pleasant Valley Road, Cleveland
OH 44131-5575
WARNING
Explosion hazard
• Use a new AGA or CSA-approved gas
supply line.
• Install a shut-off valve.
• Securely tighten all gas connections.
• lf connected to LP, have a qualified
technician ensure that the gas pressure
does not exceed a 14" W.C.P.
• Examples of qualified technicians
include licensed heating personnel,
authorized gas company personnel,
and authorized service personnel.
• Failure to do so can result in loss of life,
explosion, or fire.
NOTE:
• Observe all codes and
ordinances in force.
• The appliance must be
connected to a standard gas
supply.

Installation
16
Do not bend or damage the flexible
connector when moving the appliance. The
pressure regulator has 3/8" female pipe
threads. You will need to determine the
fittings required, depending on the
dimension of your gas supply line, the
flexible metal connector and the shut-off
valve. The appliance should be installed in
rooms that have a permanent air supply in
accordance with the standards in force. The
room where the appliance is installed must
have enough air flow for the regular
combustion of gas and the necessary air
change in the room itself. The air vents,
protected by grilles, must be the right size to
comply with current regulations and
positioned so that no part of them is
obstructed, not even partially. The room
must be kept adequately ventilated in order
to eliminate the heat and humidity produced
by cooking: in particular, after prolonged
use, you are recommended to open a
window or to increase the speed of any
fans.
Gas connection
The appliance is shipped from the factory
for use with natural gas at a pressure of 5"
of the water column. When checking for
proper operation of the regulator, the inlet
pressure must be at least 1" greater than the
operating (manifold) pressure above.
When used with natural gas, the pressure
supplied to the regulator must be between
6" and 10,5" of the water column. To
convert the appliance to propane gas see
“Conversion to Propane Gas (LPG)”. A
qualified technician or installer must do the
conversion. The gas inlet to the unit is
located at the right rear of the appliance.
Install the pressure regulator (supplied with
unit) to gas inlet.
Position the gasket (supplied with unit) in
between the inlet and the regulator. Position
the regulator to have its cap easily
accessible. Turn the nut on gas inlet to hand
tighten plus 1/3 turn. Install the gas pipe to
the regulator using Teflon tape or pipe joint
compound (resistant to propane gas and
natural gas). Turn to hand tighten plus 1/3
turn. Do not exceed 1 turn for alignment, to
prevent possible damage to the gas
pressure regulator. Check inlet fittings and
regulator for leaks.
1- Gas inlet (attached to the appliance)
2- Gasket
3- Pressure regulator
WARNING: Do not attempt any
adjustment of the pressure regulator, except
when converting to propane. Adjustments
could lead to leaks or cause incorrect gas
pressure to the appliance.

Installation
17
EN
Test for Gas Leaks
Follow these instructions to leak test the
appliance:
Use a brush and liquid detergent to test all
gas connections for leaks. Bubbles around
connections indicate a leak. If a leak
appears, shut off the gas valve controls and
adjust the connections. Then check the
connections again.
Remove all the detergent product from the
appliance. Replace the parts on the burner
and turn the knobs on the gas tap valves.
NEVER TEST FOR GAS LEAKS WITH A
MATCH OR OTHER FLAMES.
Check the appearance of the flames
• Yellow flames: Further adjustment is
required.
• Yellow tips on outer cones: Normal for
LPG Gas.
• Soft blue flames: Normal for Natural
Gas.
• Orange flames: Can be normal if certain
types of humidifiers are used in the
home. Flames should return to blue
without the humidifier running.
If the flame is completely or mostly yellow,
verify that the regulator is set for the correct
fuel. Retest after adjustment.
Some yellow streaking is normal during the
initial startup. Allow the appliance to
operate for 4–5 minutes and reevaluate
before making adjustments.
Shut-off valve
The supply line must be fitted with an
approved shut-off valve. This valve should
be located in the same room as the
appliance and should be in a location
where it can be easily opened and closed.
Do not block access to the shut-off valve.
The valve is necessary for turning the gas to
the appliance on or off.
A- To appliance
B- Shutoff valve “open” position
C- Gas Supply Line
WARNING
FIRE HAZARD
Use a soapy solution
to check that it is
leak-tight. Never
test for gas leaks
with a match or
other flames. Failure
to follow this
instruction can result
in loss of life or fire.

Installation
18
1.5 Burner and nozzle characteristics
table
To adjust the appliance for LP gas or to
return to Natural Gas use, refer to the charts
below.
• Connect the gas supply line to the unit
pressure regulator using a 1/2” flex gas
line connector between the manual
shutoff valve and the pressure regulator.
A metal flex line or fixed metal pipe must
be used to connect the gas to the
appliance. If a metal gas line cannot be
used, consult your local certified
electrician or local electric codes for
proper grounding.
• Check the supply line connections for
leaks using a soap solution or
noncorrosive leak detection fluid. Do not
use a flame of any sort.
Important notes for Gas Connection
• The appliance and its individual gas
shutoff valve must be disconnected from
the gas supply piping system during
pressure testing of the system at test
pressures in excess of 1/2 psi (3.5 kPa).
• The appliance must be isolated from the
gas supply piping system by turning off
its individual manual shut-off valve during
pressure testing of the gas supply piping
system at test pressures equal to or less
than 1/2 psi (3.5 kPa).
Final operations
• Completely fill out the Gas Conversion
label (part no. 92849A078) and attach
it to the rear or bottom of the appliance.
Do not cover any other labels with the
Gas Conversion label.
• Over time the gas taps may become
difficult to turn and get blocked. Clean
them internally and replace the
lubrication grease.
• Save the nozzles removed from the
appliance along with these instructions
for possible future use.
• For installation of the appliance at high
altitude, please consult your local gas
company for their recommendation on
the correct orifice sizes and any other
necessary adjustments that will provide
proper gas combustion at specified
altitudes.
Natural Gas Rapid Dual Flame
QT (BTU) 12000 18000
Injector Ø (mm) 1.52 1.80 + 0.75
QR (BTU) 750 750
LPG Rapid Dual Flame
QT (BTU) 12000 18000
Injector Ø (mm) 1.05 1.17 + 0.48
QR (BTU) 750 750
By-pass (mm) 45 55 + 30
Model Total Rated Input (BTU)
RTU304GX (30”) 54000
RTU366GX (36”) 84000
NOTE: Save the nozzles that were
removed from the appliance along
with these instructions for possible
future use.
NOTE: Lubrication of the gas taps
should be performed by a
specialized technician.

Installation
19
EN
Incoming line pressure
Incoming line pressure upstream from the
regulator must be 1” (2.5 cm) W.C.P. higher
than the manifold pressure in order to check
the regulator. Incoming line pressure to the
regulator should be as follows for operation
and checking the regulator setting:
• Natural Gas: Set pressure to 5” W.C.P.
Incoming line pressure of 6” - 10 1/2”
W.C.P maximum.
• LP Gas: Set pressure to 10” W.C.P.
Incoming line pressure 11”- 13” W.C.P.
maximum.
1.6 Conversion to Propane Gas
(LPG)
WARNING
This conversion kit shall be
installed by a qualified
service agency in
accordance with the
manufacturer’s instructions
and all applicable codes and
requirements having
jurisdiction. If the information
in these instructions is not
followed exactly, a fire,
explosion or production of
carbon monoxide may result
causing property damage,
personal injury or loss of life.
The qualified service agency
is responsible for the proper
installation of this kit. The
installation is not proper and
complete until the operation
of the converted appliance is
checked as specified in the
manufacturer’s instructions
supplied with the kit.
CAUTION: The gas supply shall
be shut off prior to disconnecting
the electrical power, before
proceeding with the conversion.

Installation
20
To convert the regulator to the type of gas
used, the following must be done:
1. Unscrew the cover of the pressure
regulator.
2. Unscrew the plastic regulator stem from the
regulator cap. The configuration “A” is for
Natural Gas.
3. Invert the plastic regulator stem to achieve
the configuration “B” for Propane Gas and
screw it in tightly.
4. Screw in the regulator stem and cap into its
place.
Replacing the burner nozzles
1. Remove all the grates and all the burner
caps (1) and heads (2);
Make sure that the holes of the flame-
spreader crowns are aligned with the
thermocouples (3) and igniters (4).
2. Replace the nozzles
Rapid burner
Unscrew the burner nozzles with a 7 mm
socket wrench and replace them according
to the type of gas to be used and the
description in section “Burner and nozzle
characteristics table”.

Installation
21
EN
Dual Flame burner
1. Remove the tightening screws (5), the
cover plate (6) and the gasket (7).
2. Remove the internal (8) and external (9)
nozzles and replace them according to
the type of gas to be used and the
description in section “Burner and nozzle
characteristics table”.
3. Refit the burner components correctly.
Test for gas leaks
After the conversion it is important to verify
the leakages and correct appearance of
the flames. (see page 16).
Conversion kit list of components
The conversion kit consists of the following
components, based on the model:
Both 30” and 36” models:
• One Gas Conversion label:
• One seal gasket 12.5x18.5x2 (mm) -
0.5x0.73x0.08 (in).
For 30” models only:
• One label for LPG injectors.
• One injector Ø 1.17 mm for the Dual
Flame burner (outer ring).
• One injectors Ø 0.48 mm for the Dual
Flame burner (inner ring).
• Three injectors Ø 1.02 mm for the Rapid
burners.
NOTE: There are no burner parts
under the cooktop to clean,
disassemble or adjust.

Installation
22
For 36” models only
• One label for LGP injectors.
• Two injectors Ø 1.17 mm for the Dual
Flame burners (outer ring).
• Two injectors Ø 0.48 mm for the Dual
Flame burners (inner ring).
• Four injectors Ø 1.02 mm for the Rapid
burners.
At the end of the conversion procedure
completely fill out the Gas Conversion label
(part no. 92849A078) and attach it to the
rear or bottom of the appliance. Do not
cover any other labels with the Gas
Conversion label.
1.7 Minimum adjustment
For natural Gas:
Light the burner and turn the knob to the
minimum position. Remove the gas tap knob
and turn the adjustment screw at the side of
the tap rod until the desired minimum flame
is achieved. Refer to the following pictures.
• Dual Flame burner:
• Rapid burner:
Refit the knob and verify the correct ignition
and burner flame stability (when turning the
knob rapidly from the maximum to the
minimum position the flame must not go out).
Repeat this operation on the remaining gas
taps on the cooktop.
For LP Gas:
Turn off the burners and unplug the
appliance from the electrical power supply.
For regulating the minimum with LP, the
screws at the side of the tap rod must be
turned clockwise all the way. Once the
regulation has been completed, replace the
seal on the by-passes using paint or similar
materials.