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03 - Gas cooker
7
Before commissioning the appliance
Before commissioning the appliance, remove the protective
wrapping.
Start-up
Before starting the appliance up, check that its specifica-
tions (category and type of gas used) match those of the fa-
mily and group of the gas available locally.
If not, adapt the appliance to the gas family or group requi-
red (see paragraph “Running the appliance on other types
of gas”, page 7).
To start the appliance up, see the instructions for regular
use.
Testing the power rating
Use the specific nozzles for the nominal capacity on the ap-
pliance.
Capacity can be of two types:
- nominal, as given on the data plate;
- minimum.
These nozzles are shown in “TECHNICAL DATA” table 1.
The following are the operating pressure tolerances to ob-
tain the nominal power according to the agreed nozzles:
- from 15 to 22.5 mbar for gases of the second family
- from 25 to 45 mbar for gases of the third family
(Butane-Propane).
The appliance will not work outside the above pressure th-
reshholds.
To adjust the capacity to its minimum value, use the data in
tables 1 “TECHNICAL DATA”.
If you wish to check the nominal capacity further, you may
do so using a gas meter according to the so-called ”volu-
metric method”. It is normally enough, however, simply to
check that the nozzles are functioning correctly.
Checking input pressure (Fig. 2)
Input pressure should be measured using a gauge (e.g. a
gooseneck pipe, min. resolution 0.1 mbar).
Remove screw (F) from the pressure socket and connect
it to the tube on the gauge; after measuring, the screw
should be retightened absolutely airtight (F).
Checking power rating using the
volumetric method
Using a gas meter and a chronometer, you can read the
volume of gas output per time unit.
The correct volume will be the value of “E” expressed in li-
tres per hour (It/hr) or litres per minute (It/min).
The following formula is used to calculate the value of “E”:
Capacity
Heat value
E =
Capacity should only be measured when the appliance is at
a standstill.
The heat value can be obtained from your local Gas Board.
To obtain the nominal and minimum capacities in relation to
the nominal pressure, consult “TECHNICAL DATA” table 1.
WARNING
It is not possible to adjust nominal capacity in advance.
Checking power rating when using LP
gas
Check that the type of nozzles used match manufacturer's
specifications. Check that the output pressure regulator in-
stalled collaterally to the plant conforms to the specifica-
tions laid down in paragraph "Checking input pressure", pa-
ge 7 (see data plate or measure the pressure).
Checking the primary air
The primary air in the open burners can not be adjusted.
Checking the functions
- Start the appliance in accordance with the instructions;
- Check the gas tubes for leaks;
- Check that the flame on the main burner lights properly
and is correctly formed, even on low;
- Draw up a servicing and maintenance contract.
Note for the installer
- Explain and demonstrate to the user how the machine
works according to the instructions, and hand him this
manual.
- Remind the user that any structural alterations to the
room housing the appliance may affect the combustion
air supply. Once the alterations have been completed,
the appliance and its functions should be thoroughly
checked.
Running the appliance on other types of
gas
When changing to another type of gas, e.g. from natural to
LP, or to another gas group, consult the “TECHNICAL DA-
TA” table 1 to make sure you use the appropriate nozzlzes
for the main burner. The nozzles for the cooking top burners
for different types of gas, marked in 100ths of mm, are in a
case supplied with the appliance.
When the appliance has been transformed or adapted, re-
check its functions as described in paragraph "Checking
the functions", page 7.
Replacing the nozzle on a burner
(Fig. 2)
To change nozzle (C), remove the knobs and loosen the
control panel fixing screws.
Remove the control panel, disconnect the ignition lead and
unscrew the nozzle from the nozzle holder with a spanner.
Validity from serial number 0627005545
COMMISSIONING THE APPLIANCE
