8
It is important that the walls adjacent to the appliance are protected against the heat. Place refractory sheets in between them place the appliances at
least 200 mm away from the side or rear walls.
2.3
Fumes extraction
The appliances must be installed in rooms suitable for the extraction of combustion products, in accordance with the provisions of the installation
instructions. Our equipment is considered (see specifications table) as:
“A1” TYPE GAS APPLIANCES
The A type appliances must be installed in sufficiently ventilated places in order to prevent the concentrations of harmful substances in the room where
the unit is installed. They are not designed to be connected to a discharge line of combustible materials. These appliances must discharge the
combustible products into the appropriate hoods, or similar devices, connected to a flue of proven efficiency, or they may be connected directly to an
outdoor vent.
Failing this, the use of an extractor fan is permitted, connected directly to an external area, with sufficient capacity, which will then be increased by the
exchange of air necessary for the welfare of the workers under current regulations, approximately 35 m³/h for each kW of gas power installed.
2.4
Connecting up gas
Check on the rating plate (Fig. 1), under the fires on the left-hand side, that the appliance has been tested and approved for the type of gas that the user
uses.
Check that the nozzles on the appliance are suitable for the available gas supply.
Check on the rating plate that the pressure reducer is adequate to the appliance’s gas supply
If gas supply pressure deviates by more than 10% from nominal pressure, fit a pressure regulator upstream of the appliance to ensure that nominal
pressure is maintained.
Do not reduce the diameter of the pipe between the reducer and the appliance.
Fit a gas filter upstream of the pressure regulator in order to optimise operating efficiency.
3. TECHNICAL FEATURES (Relating to the GAS part)
The data plate is positioned on the base of the cabinet or on the panel under the oven.
4. OPERATION WITH SUPPLY GAS IDENTICAL TO THAT AVAILABLE
Check whether the indications on the data plate correspond to the gas distributed. Also check the correspondence of what is indicated below.
4.1
Checking the supply pressure (Fig. 2)
The supply pressure must be measured by means of a pressure gauge with a U-shaped pipe or of the electronic type with minimal grading of 0.1 mbar.
Unscrew the screw “A” from the pressure tap “B”.
Position the pressure gauge.
Switch on the appliance and check whether the pressure is the one intended: if not check on the cause.
At the end of the operation, reassemble the appliance and check on the connection
ATTENTION: If the pressure measurement is not within the thresholds stated in table 4, instead of installing the appliance you should contact your gas
provider to report a fault with your mains supply.
Close the gas valve, disconnect the pressure measurement device, do up the screw you had previously undone and close the front panel.
4.2
Regulating the primary air
The primary air must be regulated taking into account the indications of tables 2.
4.3
Regulating the pilot flame
Regulate and check that the flame envelops the thermocouple and that the appearance of the same is correct. If this is not the case, check that the
injectors mounted are the right ones (see tables 2).
4.4
Checking the main burner
Switch on the appliance and check that the flame, lighting and regulation of the minimum are correct. Otherwise the injectors and the position of the
primary air have to be checked (see tables 2).
5. REGULATION
FOR OPERATION WITH OTHER TYPES OF GAS
To carry out this operation, for example in order to change from natural to liquid gases, the injectors of the main burners and of the pilot flames have to
be changed and the by-pass of the minimum regulated (see tables 2).
All the injectors required for regulation are supplied in a small bag together with the appliance. The injectors of the main burners are marked in
hundredths of a millimetre, while those of the pilot flame have a reference number.
5.1
Replacing the injectors of the main burners
Remove the grilles, drip collector basins, body and head of the burners.
5.1.1
Pilot flame (Fig. 3)
If the pilot flame has been regulated correctly it should envelop the thermocouple and have a perfect exterior appearance. If this is not the case,
unscrew the screw “C” and check that the injectors installed are the right ones (see tables 2).
It is not necessary to regulate the primary air for the pilot flame “D”
5.1.2 Main burner (Fig. 4)
The primary air is regulated correctly if the stability of the flames is ensured, i.e. if flame lifts do not appear with the burner cold and if there is no flame
return with the burner hot.
The distance foreseen for regulation of the primary air, for the burners of the hob and of the oven, is shown in Figures 4 and indicated in tables 2.
Unscrew the injecto
r “E” with a 11 mm spanner and mount the appropriate injector. Check the exact distance “X” for the primary air.
5.1.3
Regulating the minimums (Fig. 6)
Remove the knob and regulate the flame to the minimum setting until a stable and even flame is obtained. For the suitable capacity see tables 2.
For operation with liquid gas, the adjusting screw “F” must be fully unscrewed.
5.2
Replacing the oven injector
Remove the base of the oven.
5.2.1
Pilot flame (Fig. 7)
If the pilot flame has been regulated correctly it should envelop the thermocouple and have a perfect exterior appearance. If this is not the case,
unscrew the screw “G” and check that the injectors installed are the right ones (see tables 2). Regulation of the primary air is not necessary for the pilot
flame.
5.2.2
Main burner (Fig. 8)
Unscrew the injector “I“ and mount the one foreseen with a 12 mm spanner.
6. ACCESSIBILITY AND DISASSEMBLY OF THE PARTS (only for qualified installers)
6.1
Oven gas valve
Unscrew the two attachment screws and remove the front right-hand panel, disengaging the attachment pins.
Unscrew the nuts of the gas pipes and that of the thermocouple, remove the temperature sensor from its position inside the oven chamber
and disconnect the wire of the stack device.
Using a spanner, unscrew the two screws which attach the gas valve.
Mount the new valve.
6.2
Gas cock of the hob burners
Disengage the 4 pins which attach the control panel and remove it.
Unscrew the nuts of the gas pipes and that of the thermocouple and those which attach the gas cock to the gas ramp.
Mount the new gas cock.
