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2.4 CONNECTION TO ELECTRICITY SUPPLY
Not applicable to this appliance.

2.5 PRE-COMMISSIONING CHECK
After installation and assembly, the following checks

must be carried out to ensure satisfactory operation

of the unit. Failure to do this may result in damage to

the appliance or necessitate a service call for

rectification.
2.5.1 Gas Soundness
Turn on main gas supply and check soundness.
2.5.2. Burner Operating Pressure
Fit a pressure gauge to test point on burner inlet

supply. Turn on main gas cock and purge service

pipework of air. Light pilot then main burner as

instructed in User instructions. Adjust pressure at full

on rate (See Section 1.9)
An adjustable governor is provided for use on

NATURAL GAS MODELS ONLY. This is situated

behind the lower door. The pressure may be set by

removing the screwed cap and inserting a

screwdriver. Rotating the inner adjusting screw

clockwise will increase pressure whilst anti-clockwise

rotation will decrease it.
Adjustment on PROPANE MODELS must be made at

main regulator. No adjustment is provided on the unit.
2.5.3 Low Flame Setting
Upon completion of above, turn burner tap back to

low flame position (Mark 3) and check that pressure

corresponds with the following -

If adjustment is required, remove control panel and

turn low flame adjustment screw clockwise to reduce

pressure. (see Figure 2 below)

Low Flame Adjustment Screw

Figure 2

On completion, turn burner OFF. Remove pressure

gauge and replace test point screw.

2.5.4 Flame Failure Device
It is IMPORTANT that the pilot burner is kept clean

and properly adjusted. The frequency of cleaning will

depend on the prevailing conditions in the kitchen.
Should FFD fail to engage, the following points

should be checked. Details of access to individual

components can be found in Section 3 - Servicing.
1. Ensure gas supply to appliance is turned ON.
2. Check pilot gas supply to ensure there is no

stoppage or blocking of the connecting tubes and

pilot burner injector.

3. Check position of pilot flame in relation to

thermocouple. This should envelop and heat

10mm of thermocouple end . The thermocouple

end should be at centre of flame.

4. Ensure thermocouple is located firmly in the

seating on pilot burner. Take care not to

overtighten clamping screw retaining nut.

5. Check thermocouple connections to valve is clean

and that satisfactory contact is made. The nut

should be screwed, finger tight into valve and a

further sixth of a spanner turn (one spanner flat) to

secure. The connection MUST NOT BE

OVER-TIGHTENED as this may cause damage

to valve or thermocouple. No thread compound

should be used as this is an electrical connection.

6. Press burner tap knob IN, turn to ignition setting

and hold. Press igniter button fully in and release

it. Check resultant spark has lit pilot burner.
If electrode fails to spark, check both electrode

and igniter (see Section 3). If either component is

faulty, pilot may be lit with a taper.
Should pilot fail to light, press and release igniter

button once again. This operation should not be

attempted more than 4 times before turning gas

OFF and waiting at least 3 minutes before trying

again.
With pilot established, continue to hold tap knob

IN for a further 20 seconds then release. The pilot

should now remain lit.
Should appliance fail to respond to these checks

then a new FFD magnet unit or thermocouple will

require to be fitted.

2.5.5 Ignition
Having adjusted burner pressure, carry out lighting

procedure to check smooth ignition of pilot and main

burner.
Important Note
It is essential the above checks are carried out before

unit is put into service. Failure to do so may result in

damage to appliance or necessitate a service call.

GAS TYPE

mbars

inches w.g.

NATURAL

2

0.8

PROPANE

7.5

3

Summary of Contents for G6478

Page 1: ...s should be left with the Engineer in Charge for reference during servicing Further to this The Users Instructions should be handed over to the User having had a demonstration of the operation and cleaning of the appliance IT IS MOST IMPORTANT THAT THESE INSTRUCTIONS BE CONSULTED BEFORE INSTALLING AND COMMISSIONING THIS APPLIANCE FAILURE TO COMPLY WITH THE SPECIFIED PROCEDURES MAY RESULT IN DAMAGE...

Page 2: ...lying at the time and a competent installer must be employed 1 4 GAS SUPPLY The incoming service must be of sufficient size to supply full rate without excessive pressure drop A gas meter is connected to the service pipe by the Gas Supplier Any existing meter should be checked by the Gas Supplier to ensure the meter is of adequate capacity to pass the required rate of gas for the unit in addition ...

Page 3: ...pushing upwards to close against top panel 4 Position rear extension panel 2 over side extensions 3 and against rear cover panel 1 Use screws provided to secure 2 to 1 and 3 For all units continue assembly as follows 5 Position unit and level A levelling bolt is provided in each foot with facility for floor fixing if required SUITING ASSEMBLY 6 Ensure all packing material is removed from oven and ...

Page 4: ...can be found in Section 3 Servicing 1 Ensure gas supply to appliance is turned ON 2 Check pilot gas supply to ensure there is no stoppage or blocking of the connecting tubes and pilot burner injector 3 Check position of pilot flame in relation to thermocouple This should envelop and heat 10mm of thermocouple end The thermocouple end should be at centre of flame 4 Ensure thermocouple is located fir...

Page 5: ...et from below burner 2 nuts and withdraw pilot burner assembly from appliance Undo fixings to remove pilot burner from bracket 3 4 INJECTORS 3 4 1 To Remove the Burner Injector Remove injector located inside air box of burner with a 16mm short armed spanner Note When cleaning injector orifice a soft fuse wire or wooden splint should be used METAL REAMERS MUST NOT BE USED TO AVOID ENLARGING THE ORI...

Page 6: ...hinges to door The serration in the hinges allows door to be adjusted in or out to take up slack or prevent hinge bind The catch adjustment is accomodated by adding or removing shims as appropriate 3 11 IGNITION SYSTEM FAULTS a If spark igniter does not light pilot check for a spark and gas If no spark is evident inspect electrode to ensure the ceramic is not cracked and that igniter lead is corre...

Page 7: ...G6478 STEAMING OVEN CONTROLS ...

Page 8: ...G6478 STEAMING OVEN FITMENTS ...

Page 9: ......

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