Cobra C6 User manual

230635-6
For use in GB & IE
Gas Cooktops
Models:
C6 (600mm)
C9 (900mm)
INSTALLATION AND OPERATION MANUAL

The reproduction or copying of any part of this manual by any means whatsoever is strictly forbidden unless authorized
previously in writing by the manufacturer.
In line with policy to continually develop and improve its products, Moffat Ltd. reserves the right to change the
specifications and design without prior notice.
© Copyright Moffat Ltd. August 2011.
MANUFACTURED BY
Moffat Limited
Christchurch
New Zealand
INTERNATIONAL BRANCHES
AUSTRALIA
Moffat Pty Limited
E.Mail: [e-mail]
Main Office: (tel) [phone]
(fax) (03 9518 3833
Service: (tel): 1800 622 216
Spares: (tel): 1800 337 963
Customer Service: (tel): 1800 335 315
(fax): 1800 350 281
CANADA
Serve Canada
Web: www.servecanada.com
E.Mail: [e-mail]
Sales: (tel): 800 551 8795 (Toll Free)
Service: (tel): 800 263 1455 (Toll Free)
NEW ZEALAND
Moffat Limited
Web: www.moffat.co.nz
E.Mail: [email protected].nz
Main Office: (tel): 0800 663328
UNITED KINGDOM
Blue Seal
Web: www.blue-seal.co.uk
E.Mail: [e-mail]
Sales: (tel): 0121 327 5575
(fax): 0121 327 9711
Spares: (tel): 0121 322 6640
(fax): 0121 327 9201
Service: (tel): 0121 322 6644
(fax): 0121 327 6257
UNITED STATES
Moffat Inc
Web: www.moffat.com
Sales: (tel): 800 551 8795 (Toll Free)
(tel): 336 661 1556
(fax): 336 661 9546
Service: (tel): 800 858 4477 (Toll Free)
(tel): 366 661 1556
(fax): 336 661 1660
INTERNATIONAL
Moffat Limited
Web: www.moffat.co.nz
E.Mail: [email protected]

1
Contents
C6 Gas Cooktops 600 mm Wide.
C9 Gas Cooktops 900 mm Wide.
Part 1 Introduction ..................................................................................... 2
Part 2 Specifications .................................................................................. 3
Part 3 Installation ........................................................................................ 5
Part 4 Operation ......................................................................................... 8
Part 5 Cleaning and Maintenance......................................................... 10
Part 6 Gas Conversion ............................................................................. 13
Part 7 Replacement Parts List .................................................................. 17

We are confident that you will be delighted with your Cobra Series Cooktop, and it will become a most
valued appliance in your commercial kitchen.
To ensure you receive the utmost benefit from your new Cobra Series Appliance, there are two important
things you can do.
Firstly:
Please read this instruction book carefully and follow the directions given. The time taken will be well
spent.
Secondly:
If you are unsure of any aspect of the installation instructions or performance of your appliance, contact
your Cobra Series dealer promptly. In many cases a phone call could answer your question.
CE Only:
These instructions are only valid if the country code appears on the appliance. If the code does not
appear on the appliance, refer to the supplier of this appliance to obtain the technical instructions for
adapting the appliance to the conditions for use in that country.
WARNING:
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH.
READ THE INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS
APPLIANCE.
WARNING:
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THAT THE USER SMELLS GAS ARE TO BE POSTED IN APROMINENT LOCATION. THIS
INFORMATION CAN BE OBTAINED BY CONSULTING THE LOCAL GAS SUPPLIER.
WARNING:
GREAT CARE MUST BE TAKEN BY THE OPERATOR TO USE THE EQUIPMENT SAFELY TO GUARD IT AGAINST RISK OF FIRE.
 THE APPLIANCE MUST NOT BE LEFT 'ON' UNATTENDED.
 ITIS RECOMMENDED THAT AREGULAR INSPECTION IS MADE BY ACOMPETENT SERVICEMAN TO ENSURE THAT CORRECT AND
SAFE OPERATION OF YOUR APPLIANCE IS MAINTAINED.
 DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOURS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.
 DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION.
C AUTION :
This appliance is;
 For professional use and is to be used by qualified persons only.
 Only Qualified service persons are to carry out installation, servicing and gas
conversion operations.
 Components having adjustments protected (e.g. paint sealed) by the manufacturer
should not be adjusted by the user / operator.
 DO NOT operate the appliance without the legs supplied fitted.
2
Part 1 Introduction

3
NOTE: (*)
*- The burner operating pressure is to be measured
at the manifold test point with two burners
operating at full setting. The operating pressure
is ex-factory set, through the appliance regulator
and is not to be adjusted, apart from when
carrying out gas conversion, if required. (Refer
to the ‘Gas Conversion Instruction Sheet’ for this
appliance for further details).
Gas Connection
Gas supply connection point is located at the rear
of the appliance, approximately 130 mm from the
right hand side and 630 mm from the floor. It is
reached from beneath the appliance. (Refer to the
‘Dimensions’ section).
Connection is ¾" BSP male thread (for all models).
Part 2 Specifications
Model Covered in this Specification -
C6D [1] Cooktop 4 Open Burners.
C6C [1] Cooktop 2 Burners + 300 mm Griddle.
C6B Cooktop 600 mm Griddle.
C9D [1] Cooktop 6 Open Burners.
C9C [1] Cooktop 4 Burners + 300 mm Griddle.
C9B [1] Cooktop 2 Burners + 600 mm Griddle.
C9A Cooktop 900 mm Griddle.
[1] - Open Burner Options:-
F - With Flame Failure Protection.
- Standard Burners.
General
A heavy duty, high efficiency Cooktop for modular
kitchens. It has a high option Cooktop / Griddle
arrangement and is available on adjustable front
feet and robust rear rollers. Five griddle options with
2 models of base unit are available. Fitted with
'Individual Flame Failure' Option (F) for each open
burner. (Standard for UK - Optional for Non UK)
Griddles are fitted with pilot, flame failure and piezo
ignition as standard. These cooktops have an easy
clean stainless steel external finish.
Gas Supply Requirements
- Non - UK Only:
- UK Only:
Natural Gas
(G20)
Propane
(G31)
Open Burner
(each)
Griddle
(each 300 mm
section)
Open Burner
(each)
Griddle
(each 300 mm
section)
Heat Input (net) Nominal 5.0 kW 5.0 kW 4.6 kW 5.0 kW
Reduced 1.7 kW 1.5 kW 1.5 kW 2.2 kW
Gas Rate (net) Nominal 0.53 m3/hr 0.53 m3/hr 0.36 kg/hr 0.39 kg/hr
Reduced 0.18 m3/hr 0.16 m3/hr 0.12 kg/hr 0.17 kg/hr
Supply Pressure 20 mbar 37 mbar
Burner Operating Pressure 10 mbar (*)
Gas Connection ¾” BSP Male
28 mbar (*)
Natural Gas LP Gas (Propane)
Open Burner
(each)
Griddle
(each 300 mm
section)
Open Burner
(each)
Griddle
(each 300 mm
section)
Input Rate (N.H.G.C.) 22 MJ/hr
(20,000 Btu/hr)
20 MJ/hr
(18,956 Btu/hr)
22 MJ/hr
(20,000 Btu/hr)
20 MJ/hr
(18,956 Btu/hr)
Supply Pressure 1.13 - 3.40 kPa
(4.5” -13.5” w.c.)
2.75 - 4.50 kPa
(11” -18.0”w.c.)
Burner Operating Pressure 1.0 kPa (*)
(4.0” w.c.)
2.6 kPa (*)
(10.0” w.c.)
Gas Connection ¾” BSP Male

4
Part 2 Specifications
Dimensions
C6 - Gas Cooktop - 600 mm Wide.
C6D Model C6C Model C6B Model
C9 - Gas Cooktop - 900 mm Wide.
C9D Model C9C Model
C9B Model C9A Model

5
Part 3 Installation
Installation Requirements
NOTE:
It is most important that this appliance is installed
correctly and that the operation is correct before
use. Installation shall comply with local, gas and
health and safety requirements.
This appliance shall be installed with sufficient
ventilation to prevent the occurrence of
unacceptable concentrations of health harmful
substances in the room, that the appliance is
installed in.
Cobra Series Cooktops are designed to provide
years of satisfactory service and correct installation
is essential to achieve the best performance,
efficiency and trouble-free operation.
This appliance must be installed in accordance with
National installation codes and in addition, in
accordance with relevant National / Local codes
covering gas and fire safety.
Australia:
AS 5601 - Gas Installations.
New Zealand:
NZS 5261 - Gas Installation.
United Kingdom:
Gas Safety (Installation and Use) Regulations
1998.
BS6173 - Installation of Catering Appliances.
BS5440 1 & 2 - Installation Flueing & Ventilation.
Ireland:
IS 820 - Non Domestic Gas Installations.
Installations must be carried out by qualified service
persons only. Failure to install equipment to the
relevant codes and manufacturer’s specifications
shown in this section will void the warranty.
Components having adjustments protected (e.g.
paint sealed) by manufacturer, are only allowed to
be adjusted by an Qualified service agent. They are
not to be adjusted by the installation person.
Unpacking
 Remove all packaging and transit protection
from the appliance including all protective
plastic coating from the exterior stainless steel
panels.
 Check equipment and parts for damage.
Report any damage immediately to the carrier
and distributor.
 Report any deficiencies to the distributor who
supplied the appliance.
 Check that the available gas supply is correct to
that shown on the rating plate located on the
front upper right hand corner of the cooktop
cabinet.
Combustible
Surface
Non Combustible
Surface
LH / RH
Side 250 mm (*) 0 mm
Rear 100 mm 0 mm

6
NOTE:
The gas pressure regulator provided with this
appliance is convertible between Natural Gas and
LPG as per the ‘Gas Conversion Section’ in this
manual.
Ensure the regulator is converted to the correct gas
type that the appliance will operate on.
The regulator outlet pressure is fixed ex-factory for
the gas type that the regulator is converted to and it
is NOT to be adjusted.
The regulator connections are 3/4” BSP female.
The connection to the appliance is 3/4” BSP male.
(Refer to the 'Specifications' Section for the gas
supply location dimensions).
NOTE:
A Manual Isolation Valve must be fitted to the
individual appliance supply line.
4. Correctly locate the appliance into its final
operating position and using a spirit level, adjust
the legs so that the appliance is level and at the
correct height.
5. Connect the gas supply to the appliance. A
suitable joining compound which resists the
breakdown action of LPG must be used on
every gas line connection, unless compression
fittings are used.
6. Check all gas connections for leakages using
soapy water or other gas detecting equipment.
7. Check that the gas supply pressure is as shown in
‘Specifications’ section, ‘Gas Supply
Requirements’.
NOTE:
The supply pressure to be measured at the manifold
test point.
8. Light the Main Burners. Refer to the 'Operations’
Section', ‘Open Burners’.
9. Verify that the supply pressure is still correct.
10. Check that the Main Burner is alight and adjust
the low fire adjustment screw on the open
burner gas control valves to obtain the desired
flame size.
11. Check / adjust the main burner aeration gap.
This gap should be set to the dimensions shown
in the 'Gas Specification Tables' in ‘Part 6 - Gas
Conversion’.
NOTE:
This appliance is fitted with adjustable feet to enable
the appliance to be positioned securely and level.
This should be carried out on completion of the gas
connection.
Part 3 Installation
Assembly
This model is delivered completely assembled.
Ensure that the legs and rollers are securely
attached.
NOTE:
This appliance is fitted with adjustable feet to enable
the appliance to be positioned securely and level.
This should be carried out on completion of the gas
connection. Refer to the 'Gas Connection' section.
Gas Connection
NOTE:
ALL GAS FITTING MUST ONLY BE CARRIED OUT BY A
QUALIFIED SERVICE PERSON.
1. Cobra Series Cooktops do not require an
electrical connection, they function totally on
the gas supply only.
2. It is essential that the gas supply is correct for the
appliance to be installed and that adequate
supply pressure and volume are available. The
following checks should therefore be made
before installation:-
a. The Gas Type the appliance has been
supplied for is shown on coloured stickers
located above the gas entry point and next
to the rating plate. Check that this is correct
for the gas supply the appliance is being
installed for. The gas conversion procedure is
detailed in the Gas Conversion Instruction
Sheet for this appliance.
b. Supply Pressure required for this appliance is
shown in the 'Specifications' section of this
manual. Check the gas supply to ensure that
adequate supply pressure exists.
c. Input Rate of this appliance is also stated on
the Rating Plate located on the front upper
right hand corner of the cooktop cabinet
and in the 'Specifications' section of this
manual. The input rate should be checked
against the available gas supply line
capacity. Particular note should be taken if
the appliance is being added to an existing
installation.
NOTE
It is important that adequately sized piping runs
directly to the connection joint on the appliance,
with as few tees and elbows as possible to give
maximum supply volume.
3. Fit the gas regulator supplied, into the gas supply
line as close to the appliance as possible.
WARNING:
DONOT USE ANAKED FLAME TO CHECK FOR GAS LEAKAGES.

7
Part 3 Installation
Commissioning
The following commissioning checks must be
carried out before the appliance is handed over for
use, to ensure that the unit operates correctly and
the operator(s) understand the correct operating
procedure.
1. Before leaving the new installation;
a. Check the following functions in accordance
with the operating instructions specified in
the 'Operation' section of this manual.
 Lighting the Griddle.
 Lighting the Open Burners.
 Lighting the Open Burners. (F - Flame
Failure Option).
 Check the Low Fire Burner Operation.
b. Ensure that each operator has been
instructed in the areas of correct lighting,
operation, and shutdown procedure for the
appliance.
2. This manual must be kept by the owner for future
reference and a record of the Date of Purchase,
Date of Installation and Serial Number of the
Appliance recorded and kept with this manual.
(These details can be found on the Rating Plate
located on the front upper right hand corner of
the cooktop cabinet.
NOTE:
If for some reason it is not possible to get the
appliance to operate correctly, shut off the gas
supply and contact the supplier of this appliance.

8
Part 4 Operation
Operation Guide
1. Cobra appliances have been designed to
provide simplicity of operation and 100% safety
protection.
2. Improper operation is therefore almost
impossible, however bad operation practices
can reduce the life of the appliance and
produce a poor quality product. To use this
appliance correctly please read the following
sections carefully:-
 Lighting the Open Burners.
 Lighting the Open Burners (F Flame Failure
Option).
 Lighting the Griddle.
Description of Controls
C AUTION :
 This appliance is for professional use and
is only to be used by qualified persons.
 Only qualified service persons are
allowed to carry out installation,
servicing or gas conversion operations.
 Components having adjustments
protected (e.g. paint sealed) by the
manufacturer should not be adjusted by
the user / operator.
Gas Control Knobs
Griddle.
OFF Position
PILOT Burner
HIGH Flame
LOW Flame
Piezo Igniter
(Griddles Only)
Open Burners
OFF Position
HIGH Flame
LOW Flame
Rear Burner
Front Burner
(Indicators located
above the Gas Control
Knobs).

9
Griddle
These griddles are fitted with a pilot as a standard
option and Flame Failure Protection, which is
incorporated by way of a thermo-electric system for
each main burner. Flame Failure Protection will shut
off the gas supply to that burner in the event that
the pilot for that burner goes out, so that un-burnt
gas is not expelled. This is an important safety
feature which is slowly becoming law throughout
the world.
Lighting the Griddle
a. Depress the gas control knob and rotate anti-
clockwise to the ‘PILOT’ position.
b. With the gas control knob depressed, press the
piezo ignition button to ignite the pilot burner.
Repeat Items 1 to 2 until the pilot is lit.
c. Release the gas control knob approximately 10
to 20 seconds after lighting the pilot.
d. The pilot should now remain alight - if not, repeat
Steps (a to (c above.
e. ‘Full Flame’ can now be achieved by depressing
and rotating the gas control knob anti-clockwise
to the first stop.
f. Low flame can be achieved by depressing the
gas control knob and rotating fully anti-
clockwise to the ‘Low Flame’ position.
g. When the main burner is not required, depress
and turn the gas control knob clockwise back to
the ‘PILOT’ ‘OFF’ position.
h. To turn 'Off' the main burner, depress and turn
the gas control knob clockwise back to the
‘OFF’ position. The pilot will extinguish.
Part 4 Operation
Open Burners
NOTE:
Only cooking pans from size Ø 150 mm to Ø 420
mm are suitable fo use on these open burners.
Lighting the Open Burners
(Flame Failure Protection is incorporated as
standard for the UK Market and optional for Non -UK
Markets, for each burner by way of a thermo-
electric system which will shut off the gas supply to
that burner in the event that the burner goes out, so
that un-burnt gas is not expelled).
a. Select the burner required, depress and turn the
corresponding gas control knob anti-clockwise
to the ‘HIGH’ position.
b. With the gas control knob depressed, manually
light the burner.
c. Release the gas control knob after
approximately 10-20 seconds after lighting the
burner.
d. The burner should stay alight - if not, repeat
Steps (a to (c above.
e. To achieve simmer control, depress the gas
control knob and rotate between the ‘HIGH’
and ‘LOW’ positions to achieve the temperature
required.
Turning 'OFF' the Open Burners
a. When the main burner is not required, depress
and turn the gas control knob clockwise back to
the ‘OFF’ position. The 'MAIN' burner will
extinguish.
C AUTION :
The griddle plate temperature reaches over
300°C in hottest points during normal
operation at 'Full Flame' setting.
Should any abnormal operation like;
- ignition problems,
- abnormal burner flame,
- burner control problems,
- partial or full loss of burner flame in normal
operation,
be noticed, the appliance requires IMMEDIATE
service by a qualified service person and shall not
be used until such service is carried out.
IMPORTANT

10
CORRECT LEVEL FOR FRYING MEDIUM WHEN AT
FRYING TEMPERATURE, KEEP TOPPED UP
INDICATES CORRECT FRYING MEDIUM LEVEL
WHEN COLD
2. Always ensure that the scraper tool blades are
changed regularly to ensure that the scraper
tool works efficiently and prevents damage to
the griddle plate surface.
3. Clean the range castings with a stiff nylon brush
or a flexible spatula to remove any food debris.
Daily Cleaning
1. The grease / spill tray(s) should be checked and
emptied frequently to prevent overflow and
spillage. Remove the spill tray(s) while still warm
so that the grease is in a liquid state. Empty any
grease from the trays and wash the trays
thoroughly in the same manner as any cooking
utensil.
2. Remove the burner caps, bases, the trivets and
thoroughly clean including the splash back,
interior and exterior surfaces of the range with
hot water, a detergent solution and a soft
scrubbing brush.
3. Brush the griddle surface (optional - if fitted) with
a soft bristled brush. Any carbon deposits should
be removed using the optional scraper tool
followed by wiping with a cloth to prevent
accumulation of food deposits.
4. Clean the control panel with a damp cloth
lightly moistened with a solution of mild
detergent and water. Wipe dry with a clean dry
cloth.
5. Dry the Cooktop thoroughly with a dry cloth and
polish with a soft dry cloth.
Weekly Cleaning
NOTE:
 If the Cooktop usage is very high, we recom-
mend that the weekly cleaning procedure is
carried out on a more frequent basis.
 Ensure that protective gloves are worn during the
cleaning process.
 DO NOT use harsh abrasive detergents, strong
solvents or caustic detergents as they will
damage the cooktop and burners and griddle
plates (if fitted).
 DO NOT use water on the trivets, griddle plates
and burners while they are still hot as cracking
may occur. Allow these items castings to cool
and remove for cleaning.
 DO NOT clean the burners in a dishwasher.
Part 5 Cleaning and Maintenance
General
General
Clean the Cooktop regularly. A clean Cooktop
looks better, will last longer and will perform better.
Carbonised grease on the surface or between the
trivets, griddle plates will hinder the transfer of heat
from the cooking surface to the food. This will result
in loss of cooking efficiency.
NOTE:
NEVER use a ribbed scraper blade on the flat
surfaced griddle plate.
DO NOT use water on the trivets, burners and griddle
plates while these items are still hot as warping and
cracking may occur. Allow these items to cool
down and then remove for cleaning. The entire
trivets, griddle plates and burner caps can be
dismantled for cleaning.
NOTE:
 DO NOT use abrasive detergents, strong solvents
or caustic detergents as they could corrode or
damage the Cooktop.
 In order to prevent the forming of rust on the
trivets, griddle plate (If fitted) and burners, ensure
that any detergent or cleaning material has been
completely removed after each cleaning. The
appliance should be switched 'On' briefly to
ensure that the griddle plates become dry. Oil or
grease should be spread over the griddle surface
in order to form a thin protective greasy film.
To keep your Cooktop clean and operating at peak
efficiency, follow the procedures shown:-
After Each Use
1. Clean the griddle and Cooktop castings using a
scraper tool to remove any build up of carbon.
C AUTION :
Always ensure that if using a flat scraper
tool on the griddle surface, an even
pressure is applied over the whole surface
of the scraper tool to prevent scoring of the
surface.
NEVER bang the sharp edge of the scraper
tool on the flat surface of the griddle as this
will damage the griddle and invalidate the
warranty.
C AUTION :
Always turn off the gas supply at the mains
supply before cleaning.
This appliance is not water proof. Do not
use water jet spray to clean interior or
exterior of this appliance.

11
Trivets and Burners
a. Remove the trivets from the top of the
appliance, taking note that the trivets are
manufactured with a lip on one edge, the lip
must always be fitted to the outer edge (front
and back) of the Cooktop.
b. Remove the burner cap and burner complete
with venturi tube, from the top of the cooktop
manifold, taking care not to damage the
thermocouple (fitted as standard for UK Market
and optional for Non -UK Markets) fitted to the
mounting rail.
c. The trivets and burners should be cleaned with a
mild detergent and hot water solution using a
soft bristled brush. Dry thoroughly with a dry
cloth.
Trivet Supports
a. Remove all the trivet supports from the top of the
cooktop. Take note of the orientation of the
trivet support when removing. The trivet support
front side rail profiles are different from the rear
side rail profiles.
b. The trivet supports should be cleaned with a mild
detergent and hot water solution using a soft
bristled brush.
c. Dry the trivet supports thoroughly with a dry
cloth.
NOTE:
On units fitted with Flame Failure Thermocouples as
standard or an option, the Mounting Rail is Not
removable for cleaning and no attempt should be
made to remove this rail.
Stainless Steel Surfaces
a. With the griddle plates and burners removed,
clean the interior and exterior surfaces of the
Cooktop with hot water, a mild detergent
solution and a soft scrubbing brush. Note that
the gas control knobs are a push fit onto the gas
control valve spindles and can be removed to
allow cleaning of the front of the control panel.
b. Baked on deposits or discolouration may require
a good quality stainless steel cleaner or stainless
steel wool. Always apply cleaner when the
appliance is cold and rub in the direction of the
grain.
c. It should not be necessary to remove the splash
guards covering the burner manifolds for
cleaning purposes. These can be cleaned in
situ.
d. Dry all components thoroughly with a dry cloth
and polish with a soft dry cloth.
e. Remove the grease tray and clean with a mild
anti bacterial detergent and hot water solution
using a soft bristled brush.
f. Dry the grease tray thoroughly with a dry cloth.
Part 5 Cleaning and Maintenance
Cooktop Cooking Area
a. Clean the Cooktop cooking area using a soft
cloth moistened with a mild detergent and hot
water solution.
b. Baked on deposits or discolouration may require
a good quality stainless steel cleaner or stainless
steel wool. Always apply cleaner when the
appliance is cold and rub in the direction of the
grain.
c. It should not be necessary to remove the splash
guards covering the burner manifolds for
cleaning purposes. These can be cleaned in
situ.
d. Remove the grease / spill tray(s) and clean with
a mild anti bacterial detergent and hot water
solution using a soft bristled brush. Dry the
grease spill tray(s) thoroughly with a dry cloth.
Griddle Plate
NOTE:
In order to prevent the forming of rust on the griddle
plate, ensure that all detergent and cleaning
material has been entirely removed after each
cleaning process. The appliance should be
switched on briefly to ensure the griddle plate
becomes dry. Oil or grease should be spread over
the griddle surface in order to form a thin protective
greasy film.
a. Remove and clean the grease / spill tray(s)
frequently to prevent over spills.
b. Clean the griddle surface thoroughly with the
optional scraper tool or a wire brush. If
necessary use a griddle stone or a scotch bright
pad on the griddle surface to remove stubborn
or accumulated carbon deposits.
c. A scraper tool can be used for the removal of
stubborn carbon and deposits.
d. Occasionally bleach the griddle plate with
vinegar when the plate is cold.
e. Clean with hot water, a mild detergent solution
and a scrubbing brush. Dry all components
thoroughly with a dry cloth.
f. The Cooktop should be switched on briefly to
ensure that the griddle plate becomes dry. A
thin smear of cooking oil should be spread over
the grates in order to form a protective film.
C AUTION :
Always ensure that if using a flat scraper
tool on the griddle surface, an even
pressure is applied over the whole surface
of the scraper tool to prevent scoring of the
surface.
NEVER bang the sharp edge of the scraper
tool on the flat surface of the griddle as this
will damage the griddle and invalidate the
warranty.

12
Gas Control Valve Re-Greasing
The gas control valve should be dismantled and
greased every 6 months to ensure the correct
operation of the gas control valve.
To carry out this operation;-
a. Remove the gas control knobs from the gas tap
spindles by pulling the knobs away from the
control panel.
b. Remove the drip tray from the appliance.
c. Remove two screws on the underside of control
panel, securing the control panel to the hob.
d. Remove the control panel from the front of the
appliance.
e. Remove 2 screws holding shaft plate to gas
control body and remove control shaft and
plate. Note orientation of shaft for correct
re-assembly.
f. Using needle nose pliers or similar, pull out gas
control spindle, again noting its orientation.
g. Apply a suitable high temperature gas cock
grease or lubricant such as ROCOL - A.S.P (Anti
scuffing paste) / Dry Moly Paste to the outside of
the spindle.
h. Replace spindle and re-assemble the gas
control in reverse order.
i. Refit the control panel to the appliance and
secure with 2 screws.
j. Refit the knobs to the gas control valve spindles.
Part 5 Cleaning and Maintenance
Re-Fitting the Components to the Cooktop
a. Refit the trivet supports to the Cooktop, ensuring
that the trivet supports are correctly fitted.
NOTE:
It is imperative that the trivet supports are correctly
re-fitted to the appliance to ensure that the burners
and trivets locate correctly and sit flush and level.
Note the orientation of the trivet supports when
refitting. The trivet support front side rail profiles are
different from the rear side rail profiles and will only
fit one way to the cooktop.
b. Refit burners and burner caps onto the cooktop.
c. Refit the trivets to the cook top, taking note that
the trivets are manufactured with a lip on one
edge, the lip must always be fitted to the outer
edge (front and back) of the range.
d. Refit the spill / grease tray(s) to the range.
Oven Interior
a. Do not use wire brushes, steel wool or other
abrasive materials to clean the oven interior.
b. Clean the oven regularly with a good quality
domestic oven cleaner.
c. Once a week, remove and clean any built up of
grease etc. from the oven racks and the bottom
spill over cover.
d. Dry the oven thoroughly with a dry cloth and
polish with a soft dry cloth.
Periodic Maintenance
NOTE:
All maintenance operations should only be carried
out by a qualified service person.
To achieve the best results, cleaning must be
regular and thorough. All controls and mechanical
parts should be checked and adjusted periodically
by a qualified service person. If any small faults
occur, have them attended to promptly. Don't wait
until they cause a complete breakdown. It is
recommended that the appliance is serviced every
6 months.
Two Screws
Spindle

13
Part 6 Gas Conversion
Gas Conversion Procedure
NOTE:
 These conversions should only be carried out by
qualified persons. All connections must be
checked for leaks before re-commissioning the
appliance.
 Adjustment of components that have
adjustments / settings sealed (e.g. paint sealed)
can only be adjusted in accordance with the
following instructions and shall be re-sealed
before re-commissioning this appliance.
 For all relevant gas specifications refer to the
table at the end of this section.
Open Burners
1. Turn ‘OFF’ the gas supply at the main supply.
2. Remove the trivets
from the top of the
appliance, taking
note that the trivets
are manufactured
with a lip on one
edge, the lip must
always be fitted to the
outer edge (front and
back) of the Cooktop.
3. Remove the burner caps and the burners (these
are a loose fit to the cooktop) from the top of
the cooktop, (On Flame Failure units, take care
not to damage the thermocouple which is fitted
to the mounting rail. Fitted as standard for UK
Market and optional for Non -UK Markets).
4. Remove all the trivet
supports from the top of
the appliance. Take note
the orientation of the
trivet supports when
removing. The trivet
support front side rail
profiles are different from
the rear side rail profiles.
5. Unscrew and remove the
injectors (½ A/F) from the
gas cocks.
6. Determine the correct injector sizes for the
corresponding gas from the rating plate which is
attached to the underside of the right hand
side, front Cooktop lower trim.
7. Replace with the correct size injectors. Refer to
the ‘Gas Specifications' table at the rear of this
section, for correct injector sizes.
8. Refit all the trivet supports to the top of the
appliance. Note the orientation of the trivet
supports when refitting. The trivet support front
side rail profiles are different from the rear side
rail profiles and will only fit one way to the cook-
top.
9. Refit burners and burner caps onto the cooktop.
10. Turn on the gas supply at the mains, re-light the
burners and check the flame size on the simmer
(LOW) position.
NOTE:
The right hand gas control valve supplies the rear
burner and the left hand gas control valve supplies
the front burner.
11. Refit the trivets to the top of the appliance,
taking note that the trivets are manufactured
with a lip on one edge, the lip must always be
fitted to the outer edge (front and back) of the
Cooktop.
Low Fire Adjustment
1. To adjust the open
burner low fire
adjustment, remove
the gas control
knobs from the front
of the control panel.
2. Adjust the low fire adjustment screw on the open
burner gas control valves to obtain the desired
flame size.
NOTE:
The “Low Fire Screw” should be sealed with
coloured paint on completion of the low fire
adjustment.
C AUTION :
Ensure that the unit is isolated from the gas
supply before commencing servicing.
Std Burners
Flame Failure Burners
Rear
Front
Low Fire Adjustment Screw

14
Part 6 Gas Conversion
Aeration Adjustment
1. Check / adjust the main burner aeration gap.
This gap should be set to the dimensions shown
in the 'Gas Specification Tables' at the end of this
section.
Thermocouple Location
1. Check that the thermocouple is correctly
located and that the gap between the
thermocouple and the main burner is as shown
in the diagram below.
2. Check that the thermocouple connection to the
gas valve is tight.
Griddle
Main Burner
1. With the gas supply turned off at the main
supply, remove the griddle plate section by
lifting it straight off the Cooktop.
2. Remove the gas control heat shield from around
the griddle burner, this is just a push in fit.
3. Disconnect the piezo igniter from the mounting
bracket. (For access purposes).
4. Remove the main burner from the burner box by
removing the securing screw at the end of the
burner, this will reveal the main burner injector.
5. Remove and replace the main burner injector
with correct size injector. Refer to the ‘Gas
Specifications’ table at the end of this section,
for correct injector sizes.
6. Refit the burner to the griddle burner box.
7. Refit the gas control heat shield to the griddle
burner box.
8. Refit griddle plate section to the top of Cooktop.
9. Check the thermocouple connection the gas
valve is tight.
10. Repeat Items 1 to 9 for all griddle main burners.
11. Turn ‘ON’ the gas supply at the mains, re-light
the griddle burners and check the flame size on
the ‘LOW’ flame position.
Pilot Burner
1. Disconnect the pilot supply tube from the pilot
burner.
2. Remove the existing pilot injector and replace
with the correct size for the gas being used.
Refer to the ‘Gas Specifications’ table at the
end of this section, for correct injector sizes.
3. Re-connect pilot supply tube to the pilot burner.
4. Refit the piezo igniter to the mounting bracket.
5. Repeat Items 1 to 4 for all griddle pilot burners.
Low Fire Adjustment
1. To adjust the griddle burner ‘LOW’ fire
adjustment, remove the griddle gas control
knobs from the front of the control panel.
2. Adjust the low fire adjustment screw on the
griddle gas control valve only, to obtain the
desired flame size.
NOTE:
The “Low Fire Adjustment Screw” should be sealed
with coloured paint on completion of the low fire
adjustment.
Thermocouple Connection
1. Check that the thermocouple connection to the
gas valve is tight.
Low Fire Screw
Piezo Igniter
Thermocouple
Pilot Burner
Gas Control
Heat Shield
Burner
Securing
Screw
Burner
Securing
Screw
Refer to 'Gas
Specification
Tables'
Adjustment Screw
3 ±1 mm
2 ±1 mm

15
Part 6 Gas Conversion
Gas Regulator
NOTE:
The regulator supplied is convertible between
Natural Gas and LP Gas, but it’s outlet pressure is
fixed ex-factory and is NOT to be adjusted.
1. Ensure that the gas supply is turned 'Off' at the
mains.
2. Unscrew the hexagonal cap (23 mm A/F) from
the regulator.
3. Un-clip the plastic pin from the cap, reverse the
pin and re-fit it back to the cap the correct way
for the gas type to be used. (Either ‘LP’ or ‘NAT’
should be visible on the flank of the pin once re-
fitted to the cap).
4. Screw the cap back into the regulator hand
tight only.
Gas Type Identification Label
On completion of the gas conversion, replace the
gas type identification label located at:-
- The rear of the appliance, above the gas
connection.
- Beside the rating plate.
Commissioning
Before leaving the converted installation;
1. Check all gas connections for leakages using
soapy water or other gas detecting equipment.
2. Check the following functions in accordance
with the operating instructions specified in the
'Operation' section of this manual.
 Light the Main Burners.
 Check the Low Fire burner operation.
 Check the High Fire burner operation.
 Check the Griddle Burner operation (If Fitted).
NOTE, Pin rotated
for Natural Gas
NOTE, Pin rotated
for LPG
 Ensure that all the controls operate correctly.
 Ensure that the operating pressure remains
correct.
3. Ensure any adjustments done to components
that have the adjustments / settings sealed (e.g.
paint sealed) are re-sealed.
NOTE:
If for some reason it is not possible to get the
appliance to operate correctly, shut off the gas
supply and contact the supplier of this appliance.
WARNING:
DONOT USE ANAKED FLAME TO CHECK FOR GAS LEAKAGES.

16
Part 6 Gas Conversion
Gas Specifications
- Non-UK Only
- UK Only
Appliance Classification
Category: II2H3P.
Flue Type: A1.
NOTE:
*The burner operating pressure is to be measured at the manifold test point with two burners
operating at the ‘High’ setting. The operating pressure is ex-factory set through the appliance
regulator and is not to be adjusted, apart from when carrying out gas conversion. (Refer to the
‘Gas Conversion’ section for details).
Natural. Gas LP Gas (Propane)
Burner Injector Ø 2.10 mm Ø 1.30 mm
Low Fire Setting ¾turn open
c.c.w.
¼turn open
c.c.w.
Burner Aeration Setting 16 mm open. 16 mm open.
Griddle
Burner Injector Ø 2.00 mm Ø 1.25 mm
Pilot Injector 0.35 0.23
Supply Pressure 1.13 - 3.40 kPa 2.75 - 4.50 kPa
Burner Operating Pressure 1.0 kPa (*) 2.6 kPa (*)
Gas Regulator Cap Screw
Open Burner
Burner Aeration Setting Fully open. Fully open.
Low Fire Setting 5/8turn open
c.c.w.
3/8turn open
c.c.w.
Natural. Gas
(G20)
Propane
(G31)
Burner Injector Ø 1.90 mm Ø 1.20 mm
Low Fire Setting ¾turn open
c.c.w.
¼turn open
c.c.w.
Burner Aeration Setting 16 mm open. 16 mm open.
Griddle
Burner Injector Ø 2.00 mm Ø 1.25 mm
Pilot Injector 0.35 0.23
Supply Pressure 20 mbar 37 mbar
Burner Operating Pressure 10 mbar (*) 28 mbar (*)
Gas Regulator Cap Screw
Open Burner
Burner Aeration Setting Fully open. Fully open.
Low Fire Setting 5/8turn open
c.c.w.
3/8turn open
c.c.w.

17
Replacement Parts List
When ordering spare parts, please quote the part number and the description as listed below. If the part
required is not listed below, request the part by description and quote model number and serial number
which is shown on the rating plate.
Open Burners
230014 Pot Stand.
230088 Pot Stand Support.
230631 Front Burner Assy.
230632 Rear Burner Assy.
230288 Burner Cap.
230637 Gasket Burner Assy.
037210 Injector (Nat. Gas) Ø2.10 mm (Non-UK).
037130 Injector (LP Gas [Propane]) Ø1.30 mm (Non-UK).
037190 Injector (Nat. Gas [G20]) Ø1.90 mm (UK Only).
037120 Injector (Propane [G31]) Ø1.20 mm (UK Only).
018680 Gas Control Pintossi 20N (Standard Burners Only).
231560 Gas Control Pintossi 20S (Flame Failure '-F' Models Only).
019428 Thermocouple - (320 mm).
230671 Thermocouple - (500 mm).
230606 Knob - Open Burner.
Griddle
014105 Griddle Burner.
230213 Griddle Reflector Assy.
227403 Gas Control (with Flame Failure).
230608 Knob - Griddle.
032200 Injector (Nat. Gas) Ø2.00 mm.
032125 Injector (LP Gas [Propane]) Ø1.25 mm.
019215 Pilot Burner (Fully Assembled).
026488 Pilot Injector (Nat. Gas) 0.35.
019217 Pilot Injector (LP Gas [Propane]) 0.23.
019428 Thermocouple - (320 mm).
230586 Piezo Ignitor.
228047 Piezo H.T. Lead.
230289 Grease Tray (1 per 300 mm Griddle Section).
230059 Griddle Plate 300 mm.
230084 Griddle Plate 600 mm.
230091 Griddle Plate 900 mm.
General
230138 Drip Tray C6.
230139 Drip Tray C9.
229674 Rear Roller Assy.
234059 Leg Assy (150 mm).
Part 7 Replacement Parts List
IMPORTANT:
Only genuine qualified replacement parts should be used for the servicing and
repair of this appliance. The instructions supplied with the parts should be followed
when replacing components.
For further information and servicing instructions, contact your nearest qualified
service branch (contact details are as shown on the reverse of the front cover of this
manual).

18
Regulator
228531 Regulator (Natural Gas/LP Gas [Propane] Convertible) ¾” BSP F/F.
Gas Conversion Kits
- Non UK Only:
- UK Only:
Part 7 Replacement Parts List
Model Gas Type to Convert to
LPG (Propane) Nat. Gas
C9 231570 231569
C6 231567 231566
Model Gas Type to Convert to
Propane (G31) Nat. Gas (G20)
C9 232242 232243
C6 232240 232241