Moffat C9A-B Cooktop Operation Manual

Gas Cooktops
Models:
C6 (600mm)
C9 (900mm)
INSTALLATION
AND
OPERATION
MANUAL
242343-4
Moffat Limited
Rolleston 7675
New Zealand
AUSTRALIA
Moffat Pty Limited
E.Mail:
Main Office:
Service:
Spares:
Customer Service:
[email protected]
(tel): +61 (03) 9518 3888
(fax): +61 (03 9518 3833
(tel): 1800 622 216
(tel): 1800 337 963
(tel): 1800 335 315
(fax): 1800 350 281
CANADA
Serve Canada
Web:
E.Mail:
Sales:
Service:
www.servecanada.com
[email protected]
(tel): 800 551 8795 (Toll Free)
(tel): 800 263 1455 (Toll Free)
NEW ZEALAND
Moffat Limited
Web:
E.Mail:
Main Office:
www.moffat.co.nz
[email protected]
(tel): 0800 663328
UNITED KINGDOM
Blue Seal
Web:
E.Mail:
Sales:
Spares:
Service:
www.blue-seal.co.uk
[email protected]
(tel): +44 121 327 5575
(fax): +44 121 327 9711
(tel): +44 121 322 6640
(fax): +44 121 327 9201
(tel): +44 121 322 6644
(fax): +44 121 327 6257
UNITED STATES
Moffat
Web:
Sales:
Service:
www.moffat.com
(tel): 1-800 551 8795 (Toll Free)
(tel): 336 661 1556
(fax): 336 661 9546
(tel): 866 673 7937 (Toll Free)
REST OF WORLD
Moffat Limited
Web:
E.Mail:
www.moffat.co.nz
[email protected]
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. January 2020.
Model Numbers Covered in this Specification
General
Gas Supply Requirements
Gas Connection
Dimensions
Installation Requirements
Unpacking
Assembly
Location
Clearances
Gas Connection
Commissioning
Operation Guide
Description of Controls
Open Burners
Lighting the Open Burners
Griddle
Lighting the Griddle
General
After Each Use
Daily Cleaning
Weekly Cleaning
Periodic Maintenance
Gas Conversion Procedure
Gas Specifications
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.
Please read this instruction book carefully and follow the directions given. The time taken will be well
spent.
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.
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.
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.
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THAT THE USER SMELLS GAS ARE TO BE POSTED IN A PROMINENT LOCATION.
THIS
INFORMATION CAN BE OBTAINED BY CONSULTING THE LOCAL GAS SUPPLIER.
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.

IT IS RECOMMENDED THAT A REGULAR INSPECTION IS MADE BY A COMPETENT 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.
2
Model Covered in this Specification C6D[1]-[2]
C6C[1]-[2]
C6B-[2]
Cooktop
Cooktop
Cooktop
4 Open Burners.
2 Burners + 300mm Griddle.
600mm Griddle.
C9D[1]-[2]
C9C[1]-[2]
C9B[1]-[2]
C9A-[2]
Cooktop
Cooktop
Cooktop
Cooktop
6 Open Burners.
4 Burners + 300mm Griddle.
2 Burners + 600mm Griddle.
900mm Griddle.
[1] - Open Burner Options;
[2] - Model Configuration Options;
- Standard Option.
P - Pilot.
PF - Pilot with Flame Failure Protection.
F - Flame Failure Protection.
- Standard (Cabinet).
B - Benchtop.
A heavy duty, high efficiency Cooktop for modular kitchens and available in a 600mm and 900mm wide
models. 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, either cabinet or benchtop .
Open Burners can have either Standard, Flame Failure, Pilot or Pilot with Flame Failure Protection as an
option.
Griddles are available in 300mm, 600mm and for the C9 Gas Cooktop, a 900mm option is available.
All griddle options are fitted with pilot, flame failure and piezo ignition as standard.
- Australia:
Input Rate (N.H.G.C.)
Supply Pressure
Burner Operating Pressure (*)
Gas Connection
Open Burner
Griddle
Open Burner
Griddle
(each)
(each 300mm section)
(each)
(each 300mm section)
22 MJ/hr
20 MJ/hr
22 MJ/hr
20 MJ/hr
1.13 - 3.40 kPa
2.75 - 4.50 kPa
1.0 kPa
2.6 kPa
¾” BSP Male
- New Zealand:
Input Rate (N.H.G.C.)
Supply Pressure
Burner Operating Pressure (*)
Gas Connection
Open Burner
Griddle
Open Burner
Griddle
(each)
(each 300mm section)
(each)
(each 300mm section)
22 MJ/hr
20 MJ/hr
22 MJ/hr
20 MJ/hr
1.13 - 3.40 kPa
2.75 - 4.50 kPa
1.0 kPa
2.6 kPa
¾” BSP Male
3
- All Other Markets:
Input Rate (N.H.G.C.)
Supply Pressure
Burner Operating Pressure (*)
Gas Connection
Open Burner
Griddle
Open Burner
Griddle
(each)
(each 300mm section)
(each)
(each 300mm section)
22 MJ/hr
20 MJ/hr
22 MJ/hr
20 MJ/hr
1.13 - 3.40 kPa
0.75 - 1.50 kPa
1.0 kPa
0.63 kPa
¾” BSP Male
Input Rate (N.H.G.C.)
Supply Pressure
Burner Operating Pressure (*)
Gas Connection
Open Burner
Griddle
Open Burner
Griddle
(each)
(each 300mm section)
(each)
(each 300mm section)
22 MJ/hr
20 MJ/hr
22 MJ/hr
20 MJ/hr
2.75 - 4.50 kPa
2.75 - 4.50 kPa
2.6 kPa
2.6 kPa
¾” BSP Male
NOTE:
 (*) Measure burner operating pressure at manifold test point with two burners operating at the 'High
Flame' setting.
 NAT, LPG & Butane Only - Operating pressure is ex-factory set and is not to be adjusted, apart from
when converting between gases, if required. (Refer to ‘Gas Conversion’ section for further details).
 (**) TOWN GAS Only - Burner operating pressure is to be adjusted using the adjustable gas regulator
supplied.
 Refer to the ‘Gas Conversion and Specifications’ section in this manual for further details.
Cabinet Models;
Gas supply connection point is located at rear of appliance, approximately 130mm from right hand side and
655mm from floor. It is reached from beneath the appliance. (Refer to ‘Dimensions’ drawings).
Benchtop Models;
Gas supply connection point is located at rear of appliance, approximately 130mm from right hand side and
60mm from floor. It is reached from beneath the appliance. (Refer to ‘Dimensions’ drawings).
Connection is ¾" BSP male thread (for all models).
4
5
6
If the Legs and Rear Rollers are not fitted, carry out
the procedure below to fit Front Legs and Rear
Rollers.
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.
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.
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.
1. Remove all loose components from the top of
the cooktop.
2. Remove screws securing
transit plates to the front
corners of the transit
pallet.
Australia / New Zealand:
3. Tilt the oven onto it’s back
and unscrew the transit
bolts from the front leg
mounting plates.
AS/NZS 5601
Transit Plate.
- 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.
Transit Bolt.
4. Remove front legs from
carton and screw onto
the front leg mounting
plates.
Components
having
adjustments protected
(e.g. paint sealed) by manufacturer, are only
to be adjusted by a qualified service agent. They
are not to be adjusted by the installation person.
Adjustable
Front Leg
 Remove all packaging and transit protection
from the appliance including all protective
plastic coating from the exterior stainless steel
panels.
NOTE:
The front legs are adjustable.
Once the rear rollers are
fitted and the appliance is in
it’s operating position, the
front legs can be adjusted to
level the appliance.
 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
Adjustable Foot
5. Remove rear rollers from
carton and attach to rear
leg ring plate. Secure
with 10mm bolts supplied.
that shown on rating plate located on the front
upper right hand corner of the cooktop cabinet.
Attach with Bolt supplied.
6. Lift appliance back onto it’s legs / rollers.
7. Place the cooktop in its final operating position
and use the adjustable feet to level the
appliance.
8. Refit all items removed at Item 1 above.
7
1. This appliance must be installed in a suitably
ventilated room to prevent dangerous build up
of combustion products.
2. Installation must allow for a sufficient flow of fresh
air for the combustion air supply.
C6 Cooktop
Natural Gas
23
m3/hr
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 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 shown on
the Rating Plate located on front upper right
hand corner of 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.
C9 Cooktop
minimum
34 m3/hr minimum
LPG / Propane 24 m3/hr minimum
36 m3/hr minimum
Town Gas
34 m3/hr minimum
23 m3/hr minimum
NOTE:
ALL GAS FITTING MUST ONLY BE CARRIED OUT BY A
QUALIFIED SERVICE PERSON.
3. Installation must include adequate ventilation
means, to prevent dangerous build up of
combustion products.
4. Never directly connect a ventilation system to
the appliance flue outlet.
5. Position the appliance in its approximate
working position.
6. All air for burner combustion is supplied from
underneath the appliance. The legs must
always be fitted and no obstructions placed on
the underside or around the base of the
appliance, as obstructions will cause incorrect
operation and / or failure of the appliance.
7. Components having adjustments protected
(e.g. paint sealed) by manufacturer are only
allowed to be adjusted by a qualified service
agent. They are not to be adjusted by the
installation person.
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.
NOTE:
Do not obstruct or block the appliance flue. Never
directly connect a ventilation system to the
appliance flue outlet.
3. Fit the gas regulator supplied, into the gas supply
line as close to the appliance as possible.
NOTE:
Only non-combustible materials can be used in
close proximity to this appliance.
NOTE:
For Natural Gas, LPG Gas and Butane, the pressure
regulator provided with this appliance is convertible
between these gasses 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.
TOWN GAS Only - Burner operating pressure is to be
adjusted using the adjustable gas regulator
supplied.
Any gas burning appliance requires adequate
clearance and ventilation for optimum and troublefree operation. The following minimum installation
clearances are to be adhered to:
LH / RH
Side
Rear
*
250mm (*)
0mm
100mm
0mm
The regulator connections are 3/4” BSP female.
The connection to the appliance is 3/4” BSP male.
Side clearances can be 50mm when adjacent
surface is at least 100mm below cooking surface.
(Refer to the 'Specifications' Section for the gas
supply location dimensions).
8
NOTE:
A Manual Isolation Valve must be fitted to the
individual appliance supply line.
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.
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.
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 (Standard or
Flame Failure Option).
DO NOT USE A NAKED FLAME TO CHECK FOR GAS LEAKAGES.

7. Check that gas supply pressure is as shown in
‘Specifications’ section, ‘Gas Supply
Requirements’.
Lighting the Open Burners. (Pilot or Pilot &
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.
NOTE:
The supply pressure is to be measured at the
manifold test point with 2 burners operating at the
‘High Flame’ setting.
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.
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 7 - Gas
Conversion’.
NOTE:
If it is not possible to get the appliance to operate
correctly, shut ‘Off’ the gas supply and contact
supplier of this appliance.
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.
9
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
(Standard or Flame Failure Option).

Lighting the Open Burners.
(Pilot or Pilot and Flame Failure Option).

Lighting the Griddle.
1. Cobra appliances have been designed to
provide simplicity of operation and 100% safety
protection.
Gas Control Knobs
Griddle.
(C9-900mm Gas Cooktop with Griddle Option)
OFF Position
PILOT Burner
HIGH Flame
LOW Flame
Piezo Igniter
(Griddles Only)
Open Burner (P / PF)
OFF Position
PILOT Burner
(P & PF Options
Only)
HIGH Flame
Open Burners (Std / F)
OFF Position
HIGH Flame
LOW Flame
Rear Burner
Front Burner
(Indicators located
above the Gas Control
Knobs).
10
LOW Flame
Rear Burner
Front Burner
(Indicators located above
g. To achieve simmer control, depress the gas
control knob and rotate between the ‘HIGH’
and ‘LOW’ positions to achieve the temperature
required.
h. When the burner is not required, return the
burner to the ‘PILOT’ position to save gas.
NOTE: Only cooking pans from size Ø 150mm to
Ø 420mm are suitable fo use on these open burners.
Lighting the Open Burners (Standard / Flame Failure
Options)
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.
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 Open Burners (Pilot Option)
a. Select burner required, depress and turn the gas
control knob anti-clockwise to ‘PILOT’ position.
b. Hold gas control knob depressed and manually
light pilot burner.
c. To select ‘Full Flame’, depress and rotate gas
control knob anti-clockwise to second stop
'HIGH' flame position.
d. To select ‘Low Flame’, depress and rotate gas
control knob fully anti-clockwise to ‘LOW' flame
position.
e. To achieve simmer control, depress gas control
knob and rotate between the ‘HIGH’ and ‘LOW’
positions to achieve the temperature required.
f. When the burner is not required, return the
burner to the ‘PILOT’ position to save gas.
Lighting the Griddle Burner
! IMPORTANT
Always ensure that the grease tray is emptied regularly
and never allow the grease tray to overflow.
a. Depress the gas control knob and rotate anticlockwise 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 gas
control knob and rotating fully anti-clockwise to
the ‘Low Flame’ position.
g. To turn 'OFF' the griddle main burner, but keep
the pilot burner alight, rotate the gas control
knob to the 'PILOT' position. The griddle burner
will extinguish and the pilot will remain alight.
Lighting the Open Burners (Pilot with Flame Failure
Option)
(Flame Failure Protection is incorporated as
standard for each burner by way of a thermoelectric 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 burner required, depress and turn the gas
control knob anti-clockwise to ‘PILOT’ position.
b. Hold gas control knob depressed and manually
light pilot burner.
c. Release gas control knob after approximately 10
-20 seconds after lighting pilot burner.
d. Pilot burner should stay alight - if not, repeat
Steps (b. to (c. above.
e. To select ‘Full Flame’, depress and rotate gas
control knob anti-clockwise to second stop
'HIGH' flame position.
f. To select ‘Low Flame’, depress and rotate gas
control knob fully anti-clockwise to ‘LOW' flame
position.
Turning 'OFF' the Griddle Burner / Pilot
a. To turn 'OFF' the 'PILOT', depress and turn gas
control knob clockwise back to the ‘OFF’
position. The 'PILOT' burner will extinguish.
11
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.
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.
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 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.
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
CORRECT LEVEL FOR FRYING MEDIUM WHEN AT
FRYING TEMPERATURE, KEEP TOPPED UP
or caustic detergents as they
could
corrode
or
INDICATES
CORRECT FRYING
MEDIUM LEVEL
WHEN COLD
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.
NOTE:
 If Cooktop usage is very high, we recommend
that weekly cleaning procedure is carried out on
a more frequent basis.
 Ensure that protective gloves are worn during the
To keep your Cooktop clean and operating at peak
efficiency, follow the procedures shown:-
cleaning process.
 DO NOT use harsh abrasive detergents, strong
solvents or caustic detergents as they will
damage the cooktop, burners and griddle plate
(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.
1. Clean the griddle and Cooktop castings using a
scraper tool to remove any build up of carbon.
12
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.
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 (If Fitted - 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.
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 as an option, the Mounting Rail is Not
removable for cleaning and no attempt should be
made to remove this rail.
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. 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
and polish with a soft dry cloth.
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.
13
a. Refit the trivet supports to the Cooktop, ensuring
that the trivet supports are correctly fitted.
NOTE:
All maintenance operations should only be carried
out by a qualified service person.
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.
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.
 Note the orientation of the trivet supports when
re-fitting. 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.
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 2 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.
Two Screws
f. Using needle nose pliers or similar, pull out gas
control spindle, again noting its orientation.
Spindle
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 control panel and secure with 2 screws.
j. Refit the knobs to the gas control valve spindles.
14
This section provides an easy reference guide to the more common problems that may occur during
operation of your equipment. This fault finding guide is intended to help you accurately diagnose and
correct problems with your equipment.
Although this section covers the most common problems reported, you may encounter a problem not
covered in this section. In such instances, please contact your local authorised service agent who will make
every effort to help you identify and resolve the problem. Please note that the service agent will require the
following information:-
 Model Code and Serial Number of appliance. (Both can be found on the Rating Plate located on
the appliance).
Cooktop Open Burners
Fault
Main burners will not light.
Main burners go out when control
knob released.
Low fire rate too high.
Burner goes out when set to ‘Low’
position.
Possible Cause
No gas supply.
Ensure gas is connected and
turned on (bottles not empty).
Wrong size or blocked injectors.
Call service provider.
Obstruction in main burner.
Call service provider.
Incorrect gas supply pressure.
Call service provider.
Faulty gas control valve.
Call service provider.
Releasing knob before
thermocouple is heated.
(FF & PF Burners only).
Hold control knob in for longer
(10 secs) after lighting the burner.
Thermocouple incorrectly
positioned.
Call service provider.
Thermocouple faulty.
Call service provider.
Gas valve magnet faulty.
Call service provider.
Incorrect supply pressure.
Call service provider.
Low fire adjustment incorrect.
Call service provider.
Incorrect supply pressure.
Call service provider.
Low fire rate set too low.
Call service provider.
Main burner flame incorrect colour Incorrect gas pressure.
(yellow / wavy).
Incorrect injector size.
Pilot goes out when gas control
knob released. (PF Options only).
Remedy
Call service provider.
Call service provider.
Obstruction in main burner.
Call service provider.
Releasing knob before the
thermocouple has heated.
Hold knob in for at least 20 seconds
following ignition of pilot.
Pilot flame too small.
- Gas pressure too low.
- Partially blocked pilot injector.
Clean or replace pilot injector.
Call service provider.
Thermocouple connection to gas
control is loose or faulty.
Call service provider.
Thermocouple faulty.
Call service provider.
Electromagnet in rear of gas
control unit is faulty.
Call service provider.
15
Griddle Burners
Fault
Pilot burner won’t light.
Possible Cause
Gas control knob not being held in Hold in button while lighting pilot
for long enough.
burner.
No gas supply.
Piezo ignitor not sparking.
Pilot flame small / lazy / yellow.
Ensure gas is connected and
turned on (bottles not empty).
Gas supply pressure too low.
Call service provider.
Blocked pilot injector.
Call service provider.
Gas control valve faulty.
Call service provider.
Short in high tension lead.
Call service provider.
Piezo electrode cracked / faulty.
Call service provider.
Piezo ignitor faulty.
Call service provider.
Gas pressure too low.
Call service provider.
Blocked / incorrect size pilot
injector.
Call service provider.
Pilot goes out when knob released. Releasing knob before the
thermocouple is heated.
Main burners will not light.
Main burner flame incorrect colour
(yellow / wavy).
Pilot goes out when main burner
comes ‘On’.
Remedy
Hold gas control valve ‘In’ for
longer (10s), see if pilot remains
alight.
Pilot flame too small.
Call service provider.
Thermocouple faulty.
Call service provider.
Gas valve magnet faulty.
Call service provider.
Wrong size or blocked injectors.
Call service provider.
Obstruction in main burner.
Call service provider.
Incorrect supply pressure.
Call service provider.
Faulty gas control.
Call service provider.
Aeration setting incorrect.
Call service provider.
Incorrect gas supply pressure.
Call service provider.
Incorrect main burner injector size.
Call service provider.
Obstruction in burner.
Call service provider.
Incorrect gas pressure.
Call service provider.
Faulty gas control valve.
Call service provider.
16
Flame Failure Valve Shown
4. Unscrew and
remove injectors (½"
A/F) from the gas
valves.
5. Determine correct
injector sizes for the
corresponding gas
from the rating
plate attached to
Injector
the underside of the
right hand side, front Cooktop lower trim.
6. Replace with the correct size injectors. Refer to
the ‘Gas Specifications' table at the rear of this
section, for correct injector sizes.
NOTE:
 These conversions should only be carried out by
qualified persons.
All connections must be
checked for gas 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.
1. Remove the pot stands as shown earlier.
2. Unscrew and remove the
pilot injector for each
burner, from beneath the
mounting rails.
3. Determine the correct
pilot injector sizes for the
corresponding gas from
the rating plate which is
Pilot Injector
attached to underside of
the front right hand side,
cooktop lower trim.
4. Replace with correct size
pilot injectors. Refer to
the ‘Gas Specifications'
Pilot / Flame Failure Burners
table at rear of this
manual, for correct injector sizes.
5. Turn on the gas supply at the mains, re-light the
burners and check the flame size on the simmer
(LOW) position.
 For all relevant gas specifications refer to the
table at the end of this section.
Pot Stand Lip
1. Turn ‘Off’ the gas
supply at the main
supply.
2. Remove pot stands
from top of the
appliance, taking
note that pot stands
are manufactured with a lip on one edge, the lip
must always be fitted to outer edge (front and
back) of the cooktop.
3. Remove burner caps and burners (these are a
loose fit to the cook top) from top of cooktop,
(On Pilot / Flame Failure units, take care not to
damage the thermocouple which is fitted to the
mounting bracket / rail).
NOTE:
The right hand gas control valve supplies the rear
burner and the left hand gas control valve supplies
the front burner.
6. Refit pot stands to top of the appliance, taking
note that the pot stands are manufactured with
a lip on one edge, the lip must always be fitted
to outer edge (front and back) of the cooktop.
Low Fire Adjustment
Flame Failure Burners
a. To adjust the open burner
low fire adjustment,
remove the gas control
knobs from the front of
the control panel.
b. Adjust the low fire
adjustment screw on the
open burner gas control
valves to obtain the
desired flame size.
Standard Burners
Flame Failure Valve Shown
Low Fire
Adjustment
Screw
NOTE:
The 'Low Fire Screw' should be sealed with coloured
paint on completion of the low fire adjustment.
Pilot / Flame Failure Burners
17
Aeration Adjustment
d. Remove the main burner from the burner box.
Undo the securing screw at the end of the
burner, this will reveal the main burner injector.
e. 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.
f. Check / adjust griddle main burner aeration
gap. This gap should be set to the dimensions
shown in 'Gas Specifications' tables at the end of
this section.
a. Check / adjust the main burner aeration gap.
This gap should be set to the dimensions shown
in the 'Gas Specifications' tables at the end of
this section.
Adjustment Screw
Refer to 'Gas
Specification
Tables'
Griddle Burner Aeration Adjustment
Thermocouple Location
Adjustment Screw
a. Check the thermocouple is correctly located
and that the gap between the thermocouple
and the main burner is as shown in the diagrams
below.
Refer to 'Gas
Specification
Tables'
g. Refit the burner to the griddle burner box.
h. Refit gas control heat shield to griddle burner
box.
i. Refit griddle plate section to top of cooktop.
j. Check the thermocouple connection to the gas
valve is tight.
k. Repeat Items a) to i) for all griddle main burners.
l. Turn ‘On’ the gas supply at the mains, re-light the
griddle burners and check the flame size on the
‘LOW’ flame position.
2 ±1 mm
3 ±1 mm
Pilot/Flame Failure Burner
Flame Failure Burner
b. Check that the thermocouple connection to the
gas valve is tight.
Griddle Pilot Burner
a. Disconnect pilot supply tube from pilot burner.
b. 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.
Griddle Main Burner
a. With the gas supply turned ‘Off’ at the mains
supply, remove the griddle plate section by lifting it straight off the Cooktop.
Thermocouple
Piezo Igniter
Pilot Supply Tube
Griddle Heat
Shield
Pilot Burner
c. Re-connect pilot supply tube to pilot burner.
d. Refit the piezo igniter to the mounting bracket.
e. Repeat Items a) to d) for all pilot burners.
Burner
Securing
Screw
Low Fire Adjustment
b. Remove the gas control heat shield from around
the griddle burner, this is just a push in fit.
Low Fire Screw
a. To adjust the griddle
burner ‘LOW’ fire
adjustment, remove the
griddle gas control
knobs from the front of
the control panel.
b. Adjust the low fire
adjustment screw on the griddle gas control
valve only, to obtain the desired flame size.
Burner Securing Screw
NOTE:
The 'Low Fire Adjustment Screw' should be sealed
with coloured paint on completion of the low fire
adjustment.
c. Disconnect the piezo igniter from the mounting
bracket. (For access purposes).
18
Thermocouple Connection
On completion of the gas conversion, replace the
gas type identification label located at:-
a. Check that the thermocouple connection to the
gas valve is tight.
- The rear of the appliance, above the gas
connection.
- Beside the rating plate.
NOTE:
When screwing the thermocouple back into the gas
control valve, once threaded up, tighten up another
¼ turn only. Do not over tighten.
Before leaving the converted installation;
- NAT Gas / LPG / Butane Only.
1. Check all gas connections for leakages using
soapy water or other gas detecting
equipment.
NOTE, Pin rotated
for Natural Gas
DO NOT USE A NAKED FLAME TO CHECK FOR GAS LEAKAGES.
Injector
NOTE, Pin rotated
for LPG
2. Check the following functions in accordance
with the operating instructions specified in the
‘Operation’ section of this manual.
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 gas supply is turned 'Off' at the mains.
2. Unscrew hexagonal cap (23 mm A/F) from
regulator.
3. Un-clip plastic pin from cap, reverse the pin and
re-fit it back to cap the correct way for gas type
to be used. (Either ‘LP’ or ‘NAT’ should be visible
on flank of pin once re-fitted to the cap).
4. Screw cap back into regulator hand tight only.

Lighting the Open Burners.
(Standard / Flame Failure Option).

Lighting the Open Burners.
(Pilot / Pilot with Flame Failure Option).

Check Low Fire burner operation.

Check High Fire burner operation.

Lighting the Griddle (If fitted).

Check Griddle Burner operation (If fitted).
NOTE: If it is not possible to get the appliance to
operate correctly, shut off the gas supply and
contact the supplier of this appliance.
- Town Gas Only.
1. Unscrew and remove slotted cap from the
regulator.
2. Turn ‘On’ the gas supply and the appliance.
3. Adjust the pressure adjusting nut to achieve the
correct burner operating pressure.
Cap Nut
Pressure Adjusting
Screw
NOTE:
Measure operating pressure at manifold test point
and with 2 burners operating at ‘High Flame’ setting.
19
Open Burner
Griddle
Burner Injector
Low Fire Setting
Ø 2.10mm
¾ turn open c.c.w.
Ø 1.25mm
¼ turn open c.c.w.
Burner Aeration Setting
16mm open.
16mm open.
Pilot Injector
Burner Injector
Low Fire Setting
Burner Aeration Setting
Pilot Injector
0.30mm
Ø 2.00mm
5/8 turn open c.c.w.
Fully open.
0.35
1.13 - 3.40 kPa
1.0 kPa
0.20mm.
Ø 1.25mm
3/8 turn open c.c.w.
Fully open.
0.23
2.75 - 4.50 kPa
2.6 kPa
Supply Pressure
Burner Operating Pressure (*)
Gas Regulator Cap Screw
NOTE:
(*) Measure burner operating pressure at manifold test point with two burners operating at the ‘High’
setting. Operating pressure is ex-factory set through appliance regulator and is not to be adjusted,
apart from when carrying out gas conversion. (Refer to ‘Gas Conversion’ section for details).
20
Burner Injector
Low Fire Setting
Open Burner
Burner Aeration Setting
Ø 2.10mm
¾ turn open c.c.w.
16mm open.
Ø 3.80mm
1 turn open c.c.w.
16mm open.
Pilot Injector
Burner Injector
Low Fire Setting
Griddle
Burner Aeration Setting
Pilot Injector
Supply Pressure
Burner Operating Pressure (*)
Ø 0.30mm
Ø 2.00mm
5/8 turn open c.c.w.
Fully open.
0.35
1.13 - 3.40 kPa
1.0 kPa
0.60mm
Ø 3.40mm
1 turn open c.c.w.
Fully open.
0.60
0.75 - 1.50 kPa
0.63 kPa
Adjustable Regulator (Adjust
to the Burner
Operating Pressure)
Gas Regulator Cap Screw
Burner Injector
Low Fire Setting
Open Burner
Burner Aeration Setting
Ø 1.25mm
Ø 1.20mm
¼ turn open c.c.w.
Fully open.
Fully open.
Pilot Injector
Burner Injector
Low Fire Setting
Griddle
Burner Aeration Setting
Pilot Injector
Supply Pressure
Burner Operating Pressure (*)
Ø 0.20mm
Ø 0.20mm
Ø 1.25mm
Ø 1.20mm
3/8 turn open c.c.w.
Fully open.
0.23
2.75 - 4.50 kPa
2.6 kPa
Gas Regulator Cap Screw
NOTE:
 (*) Measure Burner operating pressure at manifold test point with two burners operating at 'High Flame'
setting.
 NAT, LPG & Butane Only - Operating pressure is ex-factory set and is not to be adjusted, unless when
converting between gases, if required.
 (**) TOWN GAS Only - Adjust burner operating pressure using the adjustable gas regulator supplied.
 Refer to ‘Gas Conversion and Specifications section of this manual for further details.
21
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).
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
230088
230631
230632
230288
230637
Pot Stand.
Pot Stand Support.
Front Burner Assy.
Rear Burner Assy.
Burner Cap.
Gasket Burner Assy.
031210
031125
031120
031380
Injector
Injector
Injector
Injector
026134
026136
018067
Pilot Burner Injector (Nat. Gas)
Pilot Burner Injector (LP Gas)
Pilot Burner Injector (Towns Gas)
018680
231560
242116
242117
Gas
Gas
Gas
Gas
019428
230671
242361
242362
Thermocouple
Thermocouple
Knob - Assy
Knob - Assy
Valve
Valve
Valve
Valve
(Nat. Gas)
(LPG / Propane)
(Butane)
(Town Gas)
c/w ⅛” Elbow
FF c/w ⅛” Elbow
P c/w ⅛” Elbow
PF c/w ⅛” Elbow
Ø
Ø
Ø
Ø
2.10mm.
1.25mm.
1.20mm.
3.80mm.
Ø 0.30mm.
Ø 0.20mm.
Ø 0.60mm.
(Standard Burners Only).
(Flame Failure '-F' Models Only).
(Pilot Burner - 'P' Models Only).
(Pilot & Flame Failure - 'PF' Models Only).
(320mm).
(500mm).
(Std / F).
(P / PF).
Griddle
014105
230213
227403
242362
Griddle Burner.
Griddle Reflector Assy.
Gas Control
(with Flame Failure).
Knob - Griddle.
032200
032125
032120
032340
Injector
Injector
Injector
Injector
019215K
Pilot Burner (Fully Assembled).
026488
019217
018067
Pilot Injector
Pilot Injector
Pilot Injector
019428
227508
018744
228047
230289
242330
242329
242328
Thermocouple
(320mm).
Piezo Ignitor.
Electrode.
Piezo H.T. Lead.
Grease Tray
(1 per 300mm Griddle Section).
Griddle Plate 300mm.
Griddle Plate 600mm.
Griddle Plate 900mm.
(Nat. Gas)
(LP Gas)
(Butane)
(Town Gas)
(Nat. Gas)
(LP Gas / Butane)
(Town Gas)
22
Ø
Ø
Ø
Ø
2.00mm.
1.25mm.
1.20mm.
3.40mm.
0.35.
0.23.
0.60.
General
242339
242258
229674
242352
Drip Tray C6.
Drip Tray C9.
Rear Roller Assy.
Adjustable Leg - 150mm c/w Leg Plate.
Regulators
Nat. Gas
LPG Gas
Butane
228531
¾” BSP F/F Convertible.
Town Gas
230185
¾” BSP F/F Adjustable.
Gas Conversion Kits
- Australia / New Zealand Only:
C6
242686
242687
C9
242688
242689
C6
242686
242687
242696
242697
C9
242688
242689
242698
242699
C6 P/PF
242717
242718
C9 P/PF
242715
242716
23