Cobra CR6 Series, CR6D, CR9 Series, CR6C, CR6B Installation And Operation Manual

...

Download

242357-3

Static Oven R a n g e

Models:

CR 6 ( 600 mm) CR 9 ( 900 mm)

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.

Moffat Limited

Rolleston 7675 New Zealand

AUSTRALIA

Moffat Pty Limited E.Mail: vsales@moffat.com.au Main Office: (tel): +61 (03) 9518 3888

(fax): +61 (03 9518 3833

Service: (tel): 1800 622 216 Spares: (tel): 1800 337 963 Customer Service: (tel): 1800 335 315 (fax): 1800 350 281

CANADA

Serve Canada Web: www.servecanada.com E.Mail: info@servecanada.com 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: sales@moffat.co.nz Main Office: (tel): 0800 663328

UNITED KINGDOM

Blue Seal Web: www.blue-seal.co.uk E.Mail: sales@blue-seal.co.uk Sales: (tel): +44 121 327 5575

(fax): +44 121 327 9711 Spares: (tel): +44 121 322 6640 (fax): +44 121 327 9201 Service: (tel): +44 121 322 6644 (fax): +44 121 327 6257

UNITED STATES

Moffat Web: www.moffat.com

Sales: (tel): 1-800 551 8795 (Toll Free)

(tel): 336 661 1556 (fax): 336 661 9546

Service: (tel): 866 673 7937 (Toll Free)

REST OF WORLD

Moffat Limited Web: www.moffat.co.nz E.Mail: export@moffat.co.nz

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

Griddle

Oven

General

After Each Use

Daily Cleaning

Weekly Cleaning

Periodic Maintenance

Open Burners

Griddle Burners

Oven

Gas Conversion Procedure

Gas Specifications

We are confident that you will be delighted with your Cobra Series Ranges, 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 Range dealer promptly. In many cases a phone call could answer your question.

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 THE USER SMELLS GAS ARE TO BE POSTED IN A PROMINENT LOCATION. THIS INFORMATION SHALL 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 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.

The CR6 Oven is a 490mm (internal) full width oven

fitted with French style opening doors. The oven burner is a 24-26 MJ oven burner and has pilot and flame failure with piezo ignition.

The CR9 Oven is a 780mm (internal) full width oven fitted with French style opening doors. The oven burner is a 28-30 MJ oven burner and has pilot and flame failure with piezo ignition.

The Range has an easy clean stainless steel external finish.

Model Covered in this Specification -

CR6D[1] Range 4 Open Burners. CR6C[1] Range 2 Burners + 300mm Griddle. CR6B Range 600mm Griddle.

CR9D[1] Range 6 Open Burners. CR9C[1] Range 4 Burners + 300mm Griddle. CR9B[1] Range 2 Burners + 600mm Griddle. CR9A Range 900mm Griddle.

[1] - Open Burner Options;

- Standard Option. F - Flame Failure Protection.

A heavy duty, general purpose Gas Range created for compact modular kitchens and available in a 600mm and 900mm wide option. It has a high option Cooktop / Griddle arrangement and is available on adjustable front feet and robust rear rollers. Open Burners have either Standard or with Flame Failure Protection as an option.

Griddles are available in 300mm, 600mm and for the CR9 Gas Static Oven Range, 900mm options and are fitted with pilot, flame failure and piezo ignition as standard.

- United Kingdom:

NOTE:

 (*) Measure burner operating pressure at manifold test point with two burners operating at 'High

Flame' setting. Operating pressure is ex-factory set and is not to be adjusted, apart from when

converting between gasses, if required. Refer to ‘Gas Conversion and Specifications’ section in this

manual for further details.

Open Burner

(each)

Griddle

(each 300mm

section)

Oven Open

Burner

(each)

Griddle

(each 300mm

section)

Oven

CR6 CR9 CR6 CR9

Heat Input (net)

Nominal 5.0 kW 5.0 kW 6.5 kW 7.5 kW 4.6 kW 5.0 kW 6.0 kW 7.5 kW Reduced

1.7 kW 1.5 kW 1.1 kW 2.2 kW 1.5 kW 2.2 kW 1.05 kW 2.3 kW

Gas Rate (net)

Nominal

0.53 m3/hr 0.53 m3/hr 0.51 m3/hr 0.79 m3/hr 0.36 kg/hr 0.39 kg/hr 0.47 kg/hr 0.58 kg/hr

Reduced

0.18 m3/hr 0.16 m3/hr 0.14 m3/hr 0.23 m3/hr 0.12 kg/hr 0.17 kg/hr 0.09 kg/hr 0.18 kg/hr

Supply Pressure

20 mbar 37 mbar

Burner Operating Pressure (*)

28 mbar 10 mbar

Gas Connection ¾” BSP Male ¾” BSP Male

Gas supply connection point is located at the rear of the appliance, approximately 130mm from the right hand side, 19mm from the rear and 656mm from the floor and is reached from beneath the appliance. (Refer to the ‘Dimensions’ below).

For all Appliance Options, gas connection is 3/4” BSP male.

CR6 Model

CR6 Model - Cooktop Options

For all Appliance Options, gas connection is 3/4” BSP male.

CR9 Model

CR9 Model - Cooktop Options

NOTE: It is most important that this appliance is installed correctly and that 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 Ranges 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.

United Kingdom:

Gas Safety (Installation and Use) Regulations 1998.

BS6173 - Installation of Catering Appliances.

BS5440 1 & 2 - Installation Flueing & Ventilation.

Ireland:

IS 820 - Non Domestic Gas Installations.

Installations must be carried out by qualified service persons only. Failure to install equipment to the

relevant codes and manufacturer’s specifications

shown in this section will void the warranty.

Components having adjustments protected (e.g. paint sealed) by manufacturer, are only 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 the rating plate located on the front lower corner of the R/H side panel.

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 range and from inside the oven.

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.

Attach with Bolt supplied.

Transit Plate.

Transit Bolt.

Adjustable Foot

Adjustable

Front Leg

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. Never directly connect a ventilation system to

the appliance flue outlet.

4. Position the appliance in its approximate

working position.

5. 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.

6. 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.

NOTE: Do not obstruct or block the appliances 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 trouble free 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 Oven Ranges 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 the front lower corner of the R/H side panel, 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: Gas pressure regulator provided with this appliance is convertible between Natural Gas and LPG as per the ‘Gas Conversion Section’ in this manual. Ensure the regulator is converted to the correct gas type that the appliance will operate on.

Regulator outlet pressure is fixed ex-factory for the gas type that the regulator is converted to and it is NOT to be adjusted.

The regulator connections are 3/4” BSP female. The connection to the appliance is 3/4” BSP male.

(Refer to the 'Specifications' Section for the gas supply location dimensions).

CR6 Cooktop CR9 Cooktop

Natural Gas

30 m3/hr minimum 41 m3/hr minimum

LPG / Propane

31 m3/hr minimum 43 m3/hr minimum

NOTE: A Manual Isolation Valve must be fitted to the individual appliance supply line.

4. Correctly locate the appliance into its final operating position and using a spirit level, adjust the legs so that the appliance is level and at the correct height.

5. Connect the gas supply to the appliance. A suitable joining compound which resists the breakdown action of LPG must be used on every gas line connection, unless compression fittings are used.

6. Check all gas connections for leakages using soapy water or other gas detecting equipment.

7. Check that the gas supply pressure is as shown in

the ‘Specifications’ section, ‘Gas Supply Requirements’.

NOTE: The supply pressure is to be measured at the manifold test point and 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.

The following commissioning checks must be carried out before the Range 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

with Flame Failure Option).

 Check the Low Fire Burner Operation.

 Light the Oven Pilot and Main Burners.

 Check the Oven Main Burner Thermostat

operation.

 Turning the Oven to ‘Stand-By’ Mode.

 Oven ‘Shut Down’.

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 rating plate located on the front lower corner of the R/H side panel.

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

2. Improper operation is 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 Griddle.

 Oven Pilot Ignition.

 Oven Main Burner Thermostat.

 Turning the Oven to ‘Stand-By’ Mode.

 Oven ‘Shut Down’.

1. Cobra appliances have been designed to provide simplicity of operation and 100% safety protection.

(CR9-Gas Range 900mm Option shown)

Griddle.

OFF Position

PILOT Burner

HIGH Flame

LOW Flame

Gas Control Knobs

Piezo Igniter (Griddles Only)

Piezo Igniter (Ovens Only)

Oven Control

OFF Position

PILOT Burner

100 - 310ºC Thermostat Settings.

Open Burners (Std / F)

OFF Position

HIGH Flame

LOW Flame

Rear Burner

Front Burner

(Indicators located above Gas Control Knobs).

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 Pilot and Flame Failure Protection as a standard option, 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 the

gas control knob and rotating fully anticlockwise 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.

Always ensure that the grease tray is emptied regularly

and never allow the grease tray to overflow.

! IMPORTANT

- Pilot Burner Ignition

This oven is fitted with a pilot as standard option and flame failure protection, which is incorporated by way of a thermo-electric system for the main burner. Flame failure protection will shut off the gas supply to the burner in the event that the pilot 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.

1. Depress and rotate the thermostat control knob anti-clockwise to the ‘PILOT’ position.

2. While holding the thermostat control knob depressed, press the piezo ignitor button to light the oven pilot burner. If required, repeat Items 1 to 2 until the oven pilot burner is lit.

3. View the oven pilot burner through the hole in the front lower sill, with the oven door open.

4. Release the thermostat control knob approximately 10-20 seconds after lighting the pilot burner.

5. The pilot burner should now remain alight - if not, repeat Steps 2 to 4 above.

- Main Burner / Thermostat

1. With the pilot burner alight, rotate the oven thermostat control knob to the desired oven temperature setting, this will regulate the gas supply to the oven burner and the oven main burner will light from the pilot burner.

2. To turn the main burner ‘OFF’, simply turn the thermostat control knob to the ‘OFF’ position.

3. The oven thermostat control knob is marked 100 to 310ºC.

4. The thermostat can be set anywhere within this range and will thermostatically maintain oven temperature.

5. The following chart indicates approximate oven centre temperatures that will be maintained at the knob markings.

Gas Mark Temperature Conversions

NOTE:

Approximate guide information only.

GAS MARK

TEMPERATURE °C

6. Temperatures required between the above should be obtained by setting the control between the markings.

1. To turn 'OFF' the oven main burner / heating, set

the oven thermostat control knob to the ‘PILOT’ position, this will turn the oven ‘OFF’, but leave the oven pilot burner ‘ON’.

2. In this position the pilot burner will remain alight, but the main burner will not operate until the oven thermostat control knob is set to a temperature.

To ‘Shut Down’ the oven, turn the oven thermostat control knob to the ‘OFF’ position. This will turn ‘OFF’

the oven and extinguish the pilot burner. To relight

the pilot burner, refer to ‘Pilot Burner Ignition’ in this

section.

DO NOT USE aluminium foil or trays directly on the oven tray or flame baffle. NEVER block or cover the openings on each side of the flame baffle.

! IMPORTANT

1 2 3 4 5 6 7

100 130 160 190 225 260 290

Should any abnormal operation like;

- ignition problems,

- abnormal burner flame,

- burner control problems,

- partial or full loss of burner flame in normal operation,

be noticed, the appliance requires IMMEDIATE service by a qualified service person and shall not be used until such service is carried out.

IMPORTANT

HEAT EXPOSURE DANGER EXISTS WHEN OPENING THE OVEN

DOOR WHILE THE OVEN IS STILL HOT.

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 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. Clean the control panel with a damp cloth

lightly moistened with a solution of mild detergent and water. Wipe dry with a clean dry cloth.

3. 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.

4. Brush the griddle surface (optional - if fitted) with

a soft bristled brush. Any carbon deposits should be removed using a scraper tool followed by wiping with a cloth to prevent accumulation of food deposits.

5. Dry the Range thoroughly with a dry cloth and

polish with a soft dry cloth.

NOTE:

 If the Range usage is very high, we recommend

that the weekly cleaning procedure is carried out on a more frequent basis.

 Ensure that protective gloves are worn during the

cleaning process.

 DO NOT use harsh abrasive or caustic detergents

or strong solvents as they will damage the cooktop, burners and griddle plates (if fitted).

 DO NOT use water on the trivets, griddle plates

and burners while they are still hot as cracking may occur. Allow these items castings to cool and remove for cleaning.

 DO NOT clean the burners in a dishwasher.

Clean the Range regularly. A clean Range 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 Range.

 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 Range clean and operating at peak efficiency, follow the procedures shown:-

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

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 Range.

b. Remove the burner cap and burner complete

with venturi tube, from the top of the range manifold, taking care not to damage the thermocouple fitted to the mounting rail. (Fitted to Flame Failure Models Only).

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 range. 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 Range 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 and all components

thoroughly with a dry cloth and polish with a soft dry cloth.

a. Clean the Range 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 that 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 a

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 Range 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.

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 and 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 gas control knobs from gas tap spindles

by pulling knobs away from control panel. b. Remove the drip tray from the appliance. c. Remove two screws on underside of control

panel, securing the control panel to the hob. d. Remove control panel from front of appliance. e. Remove 2 screws holding shaft plate to gas

control body and remove control shaft and

plate. Note the orientation of shaft for correct

re-assembly.

f. Using needle nose pliers or similar, pull out the

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 valve in reverse order. i. Refit the control panel to the appliance and

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

a. Refit the trivet supports to the Range top,

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 the burners and burner caps onto the

Range 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.

a. Do not use wire brushes, steel wool or other

abrasive materials to clean the oven interior.

b. Clean the oven regularly with a good quality

domestic oven cleaner.

c. Once a week, remove and clean any built up of

grease etc. from the oven racks and the bottom spill over cover.

d. Dry the oven thoroughly with a dry cloth and

polish with a soft dry cloth.

Two Screws

Spindle

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.

Main burners go out when control knob released.

Releasing knob before thermocouple is heated. (Flame Failure 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.

Low fire rate too high. Incorrect supply pressure.

Low fire adjustment incorrect.

Call service provider.

Burner goes out when set to ‘Low’

position.

Incorrect supply pressure.

Low fire rate set too low.

Call service provider.

Main burner flame incorrect colour (yellow / wavy).

Incorrect gas pressure.

Incorrect injector size.

Obstruction in burner.

Call service provider.

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).

Fault Possible Cause Remedy

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

for long enough.

No gas supply.

Gas pressure too low.

Blocked pilot injector.

Gas control valve faulty.

Hold in button while lighting pilot.

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

Call service provider.

Piezo ignitor not sparking. Short in high tension lead.

Piezo electrode cracked / faulty.

Piezo Ignitor faulty.

Call service provider.

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

Blocked / incorrect size pilot injector.

Call service provider.

Pilot goes out when knob released. Releasing knob before the thermo-

couple 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.

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

Obstruction in main burner.

Incorrect supply pressure.

Faulty gas control.

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.

Pilot goes out when main burner comes on.

Incorrect gas pressure.

Faulty gas control valve.

Call service provider.

Griddle Burners

Fault Possible Cause Remedy

Piezo ignitor not sparking. Short in high tension lead.

Piezo ignitor faulty.

Piezo electrode cracked or sooted up.

Call service provider.

Pilot won’t light. Knob on gas control valve won’t

go fully in.

No gas supply.

Gas pressure too low.

Blocked pilot injector.

Remove obstruction. Correct control / control panel mounting. Call service provider.

Call service provider.

Pilot flame small. Gas pressure too low.

Pilot injector restricted / incorrect size.

Call service provider.

Pilot goes out when knob released. Releasing knob before thermocou-

ple is heated.

Pilot flame too small.

Thermocouple faulty.

Faulty gas control.

Hold control in for longer (10 s), see if pilot will stay lit.

Call service provider.

Pilot flame yellow / lazy. Gas pressure incorrect.

Restriction in pilot injector or aeration.

Call service provider.

Pilot goes out when main burner comes on.

Incorrect gas pressure.

Faulty gas control.

Call service provider.

Pilot goes out while oven is in use, can re-light.

Gas supply - incorrect or fluctuating pressure.

Thermocouple faulty.

Draught at installation (blowing pilot out).

Call service provider.

Move appliance to a draught free area or remove cause of draught.

Main burner will not light. Wrong size or blocked main

injector.

Small pilot flame.

Faulty gas control.

Incorrect supply pressure.

Call service provider.

Main burner does not burn correctly (Roars / lights back / incorrect colour).

Incorrect supply pressure.

Main burner aeration incorrect.

Incorrect size or blocked main injector.

Main burner faulty.

Check supply pressure.

Call service provider.

Oven

Oven (Cont’d)

Fault Possible Cause Remedy

Set temperature not reached Gas supply fluctuating.

Gas valve not set up correctly.

Thermostat out of calibration.

Gas control faulty.

Check supply for correct pressure.

Call service provider.

Oven too hot Gas valve not set up correctly.

Thermostat out of calibration.

Call service provider.

Door does not close Tray in way of door.

Door ball catch setting incorrect.

Correctly position tray in rack.

Call service provider.

NOTE:

 These conversions should only be carried out by

qualified persons. All connections must be checked for gas leaks before re-commissioning the appliance.

 Adjustm ent of components that ha ve

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 Flame Failure units, take care not to damage the thermocouple which is fitted to the mounting bracket / rail. Fitted as standard for UK Market and optional for Non - UK Markets).

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.

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.

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 diagram opposite.

b. Check that the

thermocouple connection to the gas valve is tight.

Standard Burners

Flame Failure Burners

Flame Failure Valve Shown

Injector

Low Fire

Adjustment

Screw

Flame Failure Valve Shown

Pot Stand Lip

Refer to 'Gas Specification

Tables'

Adjustment Screw

2 ±1 mm

3 ±1 mm

Flame Failure Burner

Griddle Main Burner

a. With the gas supply turned off at the main

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.

Griddle Burner Aeration Adjustment

f. Check / adjust the griddle main burner aeration

gap. This gap should be set to the dimensions shown in the 'Gas Specifications' tables at the

end of this section. 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 j) 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 the pilot supply tube from the 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.

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.

Piezo Igniter

Thermocouple

Pilot Burner

Griddle Heat

Shield

Burner

Securing

Screw

Burner Securing Screw

Low Fire Screw

Pilot Supply Tube

Refer to 'Gas

Specification

Tables'

Adjustment Screw

Low Fire Adjustment

1. To change the thermostat ‘Low Fire’ screw for the gas type required, remove the following:-

 Gas control knobs.

 Control Panel.

 Unscrew ‘Low Fire’ screw from gasvalve.

 and fully screw in the new ‘Low Fire’

screw for the new gas type. (Refer to the

‘Gas Specifications’ table at the rear of

this section for the correct low fire screw sizes).

2. Refit the control panel.

3. Refit the gas control knobs.

- NAT Gas / LPG 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 that the gas supply is turned 'Off' at the mains.

2. Unscrew the hexagonal cap (23mm A/F) from the regulator.

3. Un-clip the plastic pin from the cap, reverse the pin and re-fit it back to the cap the correct way for the gas type to be used. (Either ‘LP’ or ‘NAT’

should be visible on the flank of the pin once re-fitted to the cap).

4. Screw the cap back into the regulator hand tight only.

Low Fire Screw

NOTE, Pin rotated for Natural Gas

NOTE, Pin rotated for LPG

Main Burner

1. Turn off gas supply at main supply.

2. Remove oven racks, oven tray and flame baffle from inside oven.

3. Remove the oven main burner.

4. Remove main burner injector and replace with

correct size injector. (Refer to ‘Gas Specifications’ table at rear of this section).

5. Refit the Main burner.

Pilot Burners

1. Remove the following:-

 Thermocouple (for access).

 Piezo electrode (for access).

 Unscrew pilot supply tube.

2. Remove pilot injector and replace with correct

size injector. (Refer to ‘Gas Specifications’ table

at rear of this section).

3. Refit the following:-

 Thermocouple (removed for access).

 Piezo electrode (removed for access).

 Pilot supply tube.

 Flame baffle.

 Oven racks.

 Oven trays.

Main Burner - CR9 Model

Securing Screws

Securing Screw

Main Burner - CR6 Model

Pilot Burner CR9

Piezo

Thermocouple

Pilot Burner CR6

Pilot Burner

Piezo

Main Burner Injector - CR6

Main Burner Injector CR9

Main Burner Injector

On completion of gas conversion, replace gas type identification label located at:-

- Rear of appliance, above 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 operating instructions specified in the 'Operation' section of this manual.

 Light Cooktop Open Burners.

(Standard / Flame Failure Option).

 Check Cooktop Low Fire Burner operation.

 Check Cooktop High Fire Burner operation.

 Lighting the Griddle Burner operation

(If fitted).

 Check Griddle Burner operation (If fitted).

 Light Oven Main Burner.

 Check Oven Low Fire Burner operation.

 Check Oven High Fire Burner operation.

 Ensure that all controls operate correctly.

 Ensure that operating pressure remains

correct.

3. Ensure any adjustments done to components that have adjustments / settings sealed (e.g. paint sealed), these are re-sealed.

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.

Category: II

2H3P.

(20, 37)

Flue Type: A1.

NOTE:

 (*) Measure burner operating pressure at manifold test point with two burners operating at 'High Flame'

setting.

 NAT, & LPG - Operating pressure is ex-factory set and is not to be adjusted, apart from when converting

between gases, if required.

 Refer to the information in this section for further details.

Open Burner

Burner Injector

Ø 1.90mm Ø 1.20mm

Low Fire Setting

¾ turn open c.c.w. ¼ turn open c.c.w.

Burner Aeration Setting

16mm open 16mm open

Griddle

Burner Injector

Ø 2.00mm Ø 1.25mm

Low Fire Setting

/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

Oven

CR6

Model

Burner Injector

Ø 2.40mm Ø 1.40mm

Low Fire Screw

Ø 1.00mm Ø 0.60mm

Burner Aeration Setting

Fully open 10mm open

Pilot Injector

0.35 0.23

CR9

Model

Burner Injector

Ø 2.50mm Ø 1.50mm

Low Fire Screw

Ø 1.50mm Ø 0.90mm

Burner Aeration Setting

Fully open Fully open

Pilot Injector

0.35 0.23

Supply Pressure

20 mbar 37 mbar

Burner Operating Pressure (*)

10 mbar 28 mbar

Gas Regulator Cap Screw

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 Suppor t. 230631 Fr ont Burner Assy. 230632 Rear Burner Assy . 230288 Burner Cap. 230637 Gasket Burner Assy.

031190 Injector (Nat. Gas) Ø 1.90mm. 031120 Injector (LP Propane) Ø 1.20mm.

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

230671 Thermocou ple - (50 0mm). (Flame Failure '-F' Model s Only).

242361 Kn ob - Assy (Std / F).

Griddle

014105 Griddle Burner. 230213 Griddle Reflector Ass y. 227403 Gas Contr ol Valve. 242362 Kn ob - Assy.

032200 Injector (Nat. Gas) Ø 2.00mm. 032125 Injector (LP Gas) Ø 1.25mm.

019215K Pilot B urner (Fully Assembled).

026488 Pilot Inj ector (Nat. Gas) 0.35. 019217 Pilot Inj ector (LP Gas) 0.23.

019428 Thermocou ple - (32 0mm). 227508 Piezo I gnitor. 228047 Piezo H.T. Lead. 230289 Gr ease Tr ay (1 per 300mm Griddle Section). 242330 Griddle P late 3 00mm. 242329 Griddle P late 6 00mm. 242328 Griddle P late 9 00mm.

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).

Oven

022446 Oven Burner (CR6). 230441 Oven Burner (CR9). 228703 Eurosit Gas Control Kit. 018682 Thermocou ple (15 00mm Lo ng). 230586 Piezo I gniter. 232691 HT Lead 1600mm. 242440 Oven Rack (CR6). 242428 Oven Rack (CR9). 230462 Oven Tray. 011005 Ball Catch Ass y. 230487 Top Striker Plate. 010254 Bo ttom Striker Plate. 227469 Do or Handle.

CR6 Model

032240 Injector (Nat . Gas) Ø 2.40mm. 032140 Injector (LP Ga s [Propane]) Ø 1.40mm. 022409 Low Fire Scre w (Nat. Gas) Ø 1.00mm. 234038 Low Fire Scre w (LP Gas) Ø 0.60mm.

CR9 Model

032250 Injector (Nat. Gas) Ø 2.50mm. 032150 Injector (LP Gas) Ø 1.50mm. 022408 Low Fire Screw (Nat. Ga s) Ø 1.50mm. 022407 Low Fire Screw (LP Gas) Ø 0.90mm.

CR6 / CR9 Models

026488 Pilot Inj ector (Nat. Gas) 0.35. 019217 Pilot Inj ector (LP Gas) 0.23.

General

230138 Drip Tray (CR6). 230139 Drip Tray (CR9). 229674 Rear Roll er Assy. 234059 Leg Assy (150mm). 242364 Kn ob 8mm Gas 100 - 310ºC.

Gas Regulator

228531 Regulator ¾” BSP F/ F Convertible(Nat. Gas / LP Gas)

Gas Conversion Kits

Part No. Description

242717 Gas Conversion Kit - 600 Gas Cooktop - ‘Natural Gas’

242718 Gas Conversion Kit - 600 Gas Cooktop - ‘LPG (Propane) Gas’

242715 Gas Conversion Kit - 900 Gas Cooktop - ‘Natural Gas’

242716 Gas Conversion Kit - 900 Gas Cooktop - ‘LPG (Propane) Gas’

242713 Gas Conversion Kit - 600 Gas Ranges - ‘Natural Gas’

242714 Gas Conversion Kit - 600 Gas Ranges - ‘LPG (Propane) Gas’

242711 Gas Conversion Kit - 900 Gas Ranges - ‘Natural Gas’

242712 Gas Conversion Kit - 900 Gas Ranges - ‘LPG (Propane) Gas’

Cobra CR6 Series, CR6D, CR9 Series, CR6C, CR6B Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual