Cobra C6, C9 Installation And Operation Manual

242343-3

Gas Cooktops

Models:

C6 (6 0 0m m)
C9 (9 0 0m m)

I N S T A L L A T I O N A N D O P E R A T I O N M A N U A L

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. May 2019.

Moffat Limited

Rolleston 7675
New Zealand

AUSTRALIA

Moffat Pty Limited
E.Mail: [e-mail]
Main Office: (tel): [phone]

(fax): [phone]

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: [e-mail]
Main Office: (tel): 0800 663328

UNITED KINGDOM

Blue Seal

Web: www.blue-seal.co.uk

E.Mail: [e-mail]
Sales: (tel): [phone]

(fax): [phone]
Spares: (tel): [phone]
(fax): [phone]
Service: (tel): [phone]
(fax): [phone]

UNITED STATES

Moffat
Web: www.moffat.com
Sales: (tel): 1800 551 8795 (Toll Free)

(tel): [phone]
(fax): [phone]
Service: (tel): 866 673 7937 (Toll Free)
(tel): [phone]
(fax): [phone]

REST OF WORLD

Moffat Limited
Web: www.moffat.co.nz
E.Mail: [e-mail]

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

3

Model Covered in this Specification -

C6D[1]-[2] Cooktop 4 Open Burners.
C6C[1]-[2] Cooktop 2 Burners + 300mm Griddle.
C6B-[2] Cooktop 600mm Griddle.

C9D[1]-[2] Cooktop 6 Open Burners.
C9C[1]-[2] Cooktop 4 Burners + 300mm Griddle.
C9B[1]-[2] Cooktop 2 Burners + 600mm Griddle.
C9A-[2] Cooktop 900mm Griddle.

[1] - Open Burner Options; [2] - Model Configuration Options;

- Standard Option. - Standard (Cabinet).
P - Pilot. B - Benchtop.
PF - Pilot with Flame Failure Protection.
F - Flame Failure Protection.

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:

- New Zealand:

Open Burner

(each)

Griddle

(each 300mm section)

Open Burner

(each)

Griddle

(each 300mm section)

Input Rate (N.H.G.C.)

22 MJ/hr 20 MJ/hr 22 MJ/hr 20 MJ/hr

Supply Pressure 1.13 - 3.40 kPa 2.75 - 4.50 kPa
Burner Operating Pressure (*)

1.0 kPa 2.6 kPa

Gas Connection

¾” BSP Male

Open Burner

(each)

Griddle

(each 300mm section)

Open Burner

(each)

Griddle

(each 300mm section)

Input Rate (N.H.G.C.)

22 MJ/hr 20 MJ/hr 22 MJ/hr 20 MJ/hr

Supply Pressure 1.13 - 3.40 kPa 2.75 - 4.50 kPa
Burner Operating Pressure (*)

1.0 kPa 2.6 kPa

Gas Connection

¾” BSP Male

4

- All Other Markets:

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).

Open Burner

(each)

Griddle

(each 300mm section)

Open Burner

(each)

Griddle

(each 300mm section)

Input Rate (N.H.G.C.)

22 MJ/hr 20 MJ/hr 22 MJ/hr 20 MJ/hr

Supply Pressure

2.75 - 4.50 kPa 2.75 - 4.50 kPa

Burner Operating Pressure (*)

2.6 kPa 2.6 kPa

Gas Connection

¾” BSP Male

Open Burner

(each)

Griddle

(each 300mm section)

Open Burner

(each)

Griddle

(each 300mm section)

Input Rate (N.H.G.C.)

22 MJ/hr 20 MJ/hr 22 MJ/hr 20 MJ/hr

Supply Pressure

1.13 - 3.40 kPa 0.75 - 1.50 kPa

Burner Operating Pressure (*)

1.0 kPa 0.63 kPa

Gas Connection

¾” BSP Male

5 6 7

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 / New Zealand:

AS/NZS 5601 - 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

to be adjusted by a qualified service agent. They

are not to be adjusted by the installation person.

 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 rating plate located on the front

upper right hand corner of the cooktop cabinet.

If the Legs and Rear Rollers are not fitted, carry out
the procedure below to fit Front Legs and Rear
Rollers.

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.

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.

3. Tilt the oven onto it’s back
and unscrew the transit
bolts from the front leg
mounting plates.

4. Remove front legs from
carton and screw onto
the front leg mounting

plates.

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.

5. Remove rear rollers from
carton and attach to rear

leg ring plate. Secure
with 10mm bolts 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.

Adjustable Foot

Attach with Bolt supplied.

Transit Bolt.

Transit Plate.

Adjustable

Front Leg

8

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.

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:
Do not obstruct or block the appliance flue. Never
directly connect a ventilation system to the
appliance flue outlet.

NOTE:
Only non-combustible materials can be used in
close proximity to this appliance.

Any gas burning appliance requires adequate
clearance and ventilation for optimum and trouble­free operation. The following minimum installation
clearances are to be adhered to:

* Side clearances can be 50mm when adjacent

surface is at least 100mm below cooking surface.

LH / RH

Side

250mm (*) 0mm

Rear 100mm 0mm

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 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.

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.

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.

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).

C6 Cooktop C9 Cooktop

Natural Gas

23 m3/hr minimum 34 m3/hr minimum

LPG / Propane

24 m3/hr minimum 36 m3/hr minimum

Town Gas

23 m3/hr minimum 34 m3/hr minimum

9

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 (Standard or

Flame Failure Option).

 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.

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 it is not possible to get the appliance to operate
correctly, shut ‘Off’ the gas supply and contact
supplier of this appliance.

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 gas supply pressure is as shown in

‘Specifications’ section, ‘Gas Supply
Requirements’.

NOTE:
The supply pressure is to be measured at the
manifold test point with 2 burners operating at the
‘High Flame’ setting.

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:
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.

DO NOT USE A NAKED FLAME TO CHECK FOR GAS LEAKAGES.

10

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.

(C9-900mm Gas Cooktop with Griddle Option)

Gas Control Knobs

Griddle.

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

LOW Flame

Rear Burner

Front Burner

(Indicators located above

Open Burners (Std / F)

OFF Position

HIGH Flame

LOW Flame

Rear Burner

Front Burner

(Indicators located
above the Gas Control
Knobs).

11

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.

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 Griddle Burner

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 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.

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.

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.

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 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.

Always ensure that the grease tray is emptied regularly

and never allow the grease tray to overflow.

! IMPORTANT

12

CORRECT LEV EL FOR FRYING MEDIUM WHEN AT
FRYING TEMPERATURE, KEEP TOPPED UP

INDICATES CORRECT F RYING 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.

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:

 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

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.

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:-

1. Clean the griddle and Cooktop castings using a
scraper tool to remove any build up of carbon.

13

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.

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. 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.

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.

14

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.

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.

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 control panel and secure with 2 screws.
j. Refit the knobs to the gas control valve spindles.

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

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.

Two Screws

Spindle

15

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 Possible Cause Remedy

Main burners will not light. No gas supply.

Wrong size or blocked injectors.

Obstruction in main burner.

Incorrect gas supply pressure.

Faulty gas control valve.

Ensure gas is connected and
turned on (bottles not empty).

Call service provider.

Call service provider.

Call service provider.

Call service provider.

Main burners go out when control
knob released.

Releasing knob before
thermocouple is heated.
(FF & PF Burners only).

Thermocouple incorrectly
positioned.

Thermocouple faulty.

Gas valve magnet faulty.

Hold control knob in for longer
(10 secs) after lighting the burner.

Call service provider.

Call service provider.

Call service provider.

Low fire rate too high. Incorrect supply pressure.

Low fire adjustment incorrect.

Call service provider.

Call service provider.

Burner goes out when set to ‘Low’

position.

Incorrect supply pressure.

Low fire rate set too low.

Call service provider.

Call service provider.

Main burner flame incorrect colour
(yellow / wavy).

Incorrect gas pressure.

Incorrect injector size.

Obstruction in main burner.

Call service provider.

Call service provider.

Call service provider.

Pilot goes out when gas control
knob released. (PF Options only).

Releasing knob before the
thermocouple has heated.

Pilot flame too small.

- Gas pressure too low.

- Partially blocked pilot injector.

Thermocouple connection to gas
control is loose or faulty.

Thermocouple faulty.

Electromagnet in rear of gas
control unit is faulty.

Hold knob in for at least 20 seconds
following ignition of pilot.

Clean or replace pilot injector.
Call service provider.

Call service provider.

Call service provider.

Call service provider.

16

Fault Possible Cause Remedy

Pilot burner won’t light. Gas control knob not being held in

for long enough.

No gas supply.

Gas supply pressure too low.

Blocked pilot injector.

Gas control valve faulty.

Hold in button while lighting pilot
burner.

Ensure gas is connected and
turned on (bottles not empty).

Call service provider.

Call service provider.

Call service provider.

Piezo ignitor not sparking. Short in high tension lead.

Piezo electrode cracked / faulty.

Piezo ignitor faulty.

Call service provider.

Call service provider.

Call service provider.

Pilot flame small / lazy / yellow. Gas pressure too low.

Blocked / incorrect size pilot
injector.

Call service provider.

Call service provider.

Pilot goes out when knob released. Releasing knob before the

thermocouple is heated.

Pilot flame too small.

Thermocouple faulty.

Gas valve magnet faulty.

Hold gas control valve ‘In’ for
longer (10s), see if pilot remains
alight.

Call service provider.

Call service provider.

Call service provider.

Main burners will not light. Wrong size or blocked injectors.

Obstruction in main burner.

Incorrect supply pressure.

Faulty gas control.

Call service provider.

Call service provider.

Call service provider.

Call service provider.

Main burner flame incorrect colour
(yellow / wavy).

Aeration setting incorrect.

Incorrect gas supply pressure.

Incorrect main burner injector size.

Obstruction in burner.

Call service provider.

Call service provider.

Call service provider.

Call service provider.

Pilot goes out when main burner

comes ‘On’.

Incorrect gas pressure.

Faulty gas control valve.

Call service provider.

Call service provider.

Griddle Burners

17

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.

 For all relevant gas specifications refer to the

table at the end of this section.

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).

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
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.

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
attached to underside of
the front right hand side,
cooktop lower trim.

4. Replace with correct size
pilot injectors. Refer to

the ‘Gas Specifications'

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.

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

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.

NOTE:
The 'Low Fire Screw' should be sealed with coloured
paint on completion of the low fire adjustment.

Standard Burners

Flame Failure Burners

Pilot / Flame Failure Burners

Flame Failure Valve Shown

Injector

Pilot Injector

Pilot / Flame Failure Burners

Low Fire

Adjustment

Screw

Flame Failure Valve Shown

Pot Stand Lip

18

Aeration Adjustment

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.

Thermocouple Location

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.

b. Check that the thermocouple connection to the

gas valve is tight.

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.

b. Remove the gas control heat shield from around

the griddle burner, this is just a push in fit.

c. Disconnect the piezo igniter from the mounting

bracket. (For access purposes).

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.

Griddle Burner Aeration Adjustment

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.

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.

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.

Low Fire Adjustment

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.

NOTE:
The 'Low Fire Adjustment Screw' should be sealed
with coloured paint on completion of the low fire
adjustment.

Piezo Igniter

Thermocouple

Pilot Burner

Griddle Heat

Shield

Burner

Securing

Screw

Burner Securing Screw

Refer to 'Gas
Specification
Tables'

Adjustment Screw

Low Fire Screw

Pilot Supply Tube

2 ±1 mm

3 ±1 mm

Flame Failure Burner

Pilot/Flame Failure Burner

Refer to 'Gas
Specification

Tables'

Adjustment Screw

19

Thermocouple Connection

a. Check that the thermocouple connection to the

gas valve is tight.

NOTE:
When screwing the thermocouple back into the gas
control valve, once threaded up, tighten up another
¼ turn only. Do not over tighten.

- NAT Gas / LPG / Butane Only.

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.

- 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.

NOTE:
Measure operating pressure at manifold test point
and with 2 burners operating at ‘High Flame’ setting.

NOTE, Pin rotated
for Natural Gas

NOTE, Pin rotated
for LPG

Pressure Adjusting

Screw

Cap Nut

Injector

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.

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.

 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.

DO NOT USE A NAKED FLAME TO CHECK FOR GAS LEAKAGES.

20

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).

Burner Injector

Ø 2.10mm Ø 1.25mm

Open Burner

Low Fire Setting

¾ turn open c.c.w. ¼ turn open c.c.w.

Burner Aeration Setting

16mm open. 16mm open.

Pilot Injector

0.30mm 0.20mm.

Griddle

Burner Injector

Ø 2.00mm Ø 1.25mm

Low Fire Setting

5

/8 turn open c.c.w.

3

/8 turn open c.c.w.

Burner Aeration Setting

Fully open. Fully open.

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

21

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.

Open Burner

Burner Injector

Ø 1.25mm Ø 1.20mm

Low Fire Setting

¼ turn open c.c.w.

Burner Aeration Setting

Fully open. Fully open.

Pilot Injector

Ø 0.20mm Ø 0.20mm

Griddle

Burner Injector

Ø 1.25mm Ø 1.20mm

Low Fire Setting

3

/8 turn open c.c.w.

Burner Aeration Setting

Fully open.

Pilot Injector

0.23

Supply Pressure

2.75 - 4.50 kPa

Burner Operating Pressure (*)

2.6 kPa

Gas Regulator Cap Screw

Open Burner

Burner Injector

Ø 2.10mm Ø 3.80mm

Low Fire Setting

¾ turn open c.c.w. 1 turn open c.c.w.

Burner Aeration Setting

16mm open. 16mm open.

Pilot Injector

Ø 0.30mm 0.60mm

Griddle

Burner Injector

Ø 2.00mm Ø 3.40mm

Low Fire Setting

5

/8 turn open c.c.w. 1 turn open c.c.w.

Burner Aeration Setting

Fully open. Fully open.

Pilot Injector

0.35 0.60

Supply Pressure

1.13 - 3.40 kPa 0.75 - 1.50 kPa

Burner Operating Pressure (*)

1.0 kPa 0.63 kPa

Gas Regulator Cap Screw

Adjustable Regulator (Adjust

to the Burner

Operating Pressure)

22

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 Ass y.
230288 Burner Cap.
230637 Gasket Burner Assy.

031210 Injector (Nat. Gas) Ø 2.10mm.
031125 Injector (LPG / Propane) Ø 1.25 mm.

031120 Injector (Butane) Ø 1 .20mm.

031380 Injector (Town Gas) Ø 3.80mm.

026134 Pilot Burner Injector (Na t. Gas) Ø 0.30mm.
026136 Pilot Burner Injector (LP G as) Ø 0.20mm.
018067 Pilot Burner Injector (Towns Gas) Ø 0.60mm.

018680 Gas Valve c/w ⅛” Elbow (Standard Burners Only).
231560 Gas Valve FF c/w ⅛” Elbow (Flame Fai lure '-F' Models Only).

242116 Gas Valve P c/ w ⅛” Elbow (Pi lo t Burner - 'P' Models Only).

242117 Gas Valve PF c/w ⅛” Elbow (Pilot & Flame Failure - 'PF' Models Only).

019428 Thermocouple - (320mm).
230671 Thermocouple - (500mm).

242361 Knob - Assy (Std / F) .
242362 Knob - Assy (P / PF).

Griddle

014105 Griddle Burner .
230213 Griddle Reflector Assy .
227403 Gas Con trol (wi th Flame Failure).
242362 Knob - Griddle.

032200 Injector (Nat. G as) Ø 2.00mm.

032125 Injector (LP Gas) Ø 1.25mm.

032120 Injector (Butane ) Ø 1.20mm.
032340 Injector (Town Gas) Ø 3.40 mm.

019215K Pilot Burn er (Fully Assembled).

026488 Pilot Injector (Nat. Gas) 0.35.
019217 Pilot Injector (LP Gas / Bu tane) 0.23.
018067 Pilot Injector (Town Gas) 0.60 .

019428 Thermocouple - (320mm).
227508 Piezo Ignito r.
228047 Piezo H.T. Lead.
230289 Grease Tray - (1 per 300 mm Griddle Section).
242330 Griddle Plate 300mm.
242329 Griddle Plate 600mm.
242328 Griddle Plate 900mm.

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).

23

General

242339 Drip Tray C6 .
242258 Drip Tr ay C9.
229674 Rear Ro ller Assy.
242352 Adj ustable Leg - 150mm c /w Leg Plate.

Regulators

Gas Conversion Kits

- Australia / New Zealand Only:

Nat. Gas
LPG Gas
Butane

228531 ¾” BSP F/F Convertible.

Town Gas 230185 ¾” BS P F/F Adjustable.

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