- All appliances, during final testing in the factory, are fitted for the type of gas shown on the sticker next to the data plate. Should the appliance fitting not correspond to the family of gases available on location, the appliance must be converted to adapt to the type of gas available. If conversion is necessary, then you must inform Customer Service and refer to the technical manual.
- Commissioning of the appliance to operate at the rated heat output is dependent on the inlet pressure and calorific value of the gas and the correct amount of primary air.
- The inlet pressure required for the appliance to operate with the various types of gas typically available will be within the limits indicated in table 6 of the “Tecnical gas data” booklet.
The appliance must not be commissioned if inlet pressure values are outside these limits. If pressures differ from those indicated in Table 6, the gas supply company or agency should be contacted, or alternatively the contractor by which the system was installed in the building. - The lower calorific value of the gas can be checked with the supply company or agency, and should comply with the information given in table 5 of the “Tecnical gas data” booklet.
MEASURING THE INLET PRESSURE
The inlet pressure is measured using a manometer connected to the pressure tap (3) of the gas adjustment valve. To gain access to the valve, the right-hand side casing panel has to be removed.
Before connecting the manometer it is necessary to loosen the screw sealing the pressure tap (3). You then measure the pressure with the burner in operation. The value shown on the manometer must come within the limits given in table 6 “of the “Tecnical gas data” booklet.
After checking, carefully close the screw (3). The sealed screws you can see on the valves must never be tampered with under any circumstances.
Tampering immediately invalidates warranty!
Warning! The gas system components are fitted for a maximum pressure of 65 mbar. Higher working pressures are not permissible.
CHECKING NOMINAL HEAT CAPACITY
- Chamber Burner
Bruciatore camera
Check that the burner fan speed, corresponds to the data given in table 5 of the “Technical gas data” booklet.
To enter the management screen of the burner to check:
Press the MENU button 13, turn knob 16 until “Settings” is displayed and confirm by pressing knob 16.
Select “Gas” and press knob 16 to confirm. Turn knob 16 to set the password for parameter modification and confirm by pressing the knob 16.
Select the burner, by turning knob 16 and confirm by pressing knob 16.
To change a value, highlight it by turning knob 16 and confirm by pressing knob 16.
Set the new value, by turning knob 16 and confirm by pressing knob 16.
Proceed in the same way to change the values of the other burners if present (example “Chamber burner 2”).
Then, to test the correct functioning of the burners, select “start”by turning knob 16 and confirm by pressing knob 16.
The burner will go in pre-ventilation to then pass on to the set IGN ignition. The first IGN ignition stage is indicated on display 10 by the first point under the speed value.
Then, the minimum and maximum speed stages, indicated respectively in the second and third points, will automatically activate.
The correct burner functioning is highlighted by the increase of the temperature in the cooking compartment.
To deactivate burner functioning, press “STOP”, displayed on the display 15.
To exit the cycle press button 14.
NOTE: To check/adjust the boiler burner, activate the Boiler Burner section (example “Boiler burner 1”) as operated for cooking compartment burner heating.
During testing, it is possible to manually block the sequence by pressing “MENU” 13; this way, the burner blocks in the desired phase (ex. IGN ignition) allowing the technician to carry out other verifications in this phase.
When a phase is blocked, the point indicating phase 1, 2 or 3 flashes.
To restart the sequence, always press “MENU” 13.
NOTE: in case of maximum speed, the cycle block becomes pointless since the oven is already working normally; it is possible to shift to minimum phase by pressing “MENU” 13.
To carry out the tests with the door open, once the cycle is started, press the “CLIMA” button 5; this function is useful during combustion analysis and for functioning tests of the prolonged burner without reaching the temperature previously set in the chamber.
Check the combustion, CO (ppm) and CO2 (%) values, with an appropriate instrument.
Start the oven working, with the door open, and wait for approximately 5 minutes.
Position the flue gas collection probe in the flue gas outlet pipe (chamber and boiler).
The CO2 must be for:
Natural gas between 9% and 10.5%
L.P.G. between 9% and 13%
The CO must be no greater than 300 pm (measured).
If these readings are outside the ranges, proceed as stated in the technical manual.
For the conversion from natural gas to LPG, or vice versa, proceed as described in the technical manual.
- Boiler Burner
Repeat these operations, setting 130°C steam cooking (also with door closed).
Conversion: As mentioned above, every appliance is factory set to burn the type of gas specified, it may become necessary nonetheless to convert the appliance from one type of gas to another. Therefore, only personnel authorized by the company and belonging to the technical service who have the corresponding technical handbook can do this work.