5 - SET-UP FOR OPERATION
0820_GB_99
- GAS PASTA COOKER
5.1.5 Power check for operation with liquid gas
Check if the type of injectors used meet the data of the table 1.
Check that the pressure reducer installed in the system has an outlet
pressure which is compliant with paragraph 5.1.2 "Check of power"
(can be checked on the data plate of the appliance or on the table
1).
5.1.6 Operation control
• Start the appliance in accordance with the instructions.
• Check that the appliance does not have any leaks by using a leak-
detecting spray.
• Check ignition and that flame on the main burner lights properly
and is correctly formed, even on low.
• A servicing and maintenance contract is recommended.
5.1.7 Check of pilot flame
For proper regulation, the pilot flame must surround the thermocou-
ple and it must have a perfect appearance; otherwise, check gas
pressure, make sure the injector is clean and has the right diameter
for the gas, see table 1.
5.1.8 Checking the primary air
The burner is equipped with primary air adjustment. Distance “A”
(fig. 2) see table 1.
Air volume flow is correct when there is sufficient protection again-
st the flame rising when the burner is cold or in case of flashback
when the burner is hot.
5.1.9 Operator training
• Explain and show the user how the machine works according to
the instructions, and hand him this manual.
• Remind the user that any structural alterations or any building
modification or renovation may affect the combustion air supply,
thus requiring a second operation check.
5.1.10 Conversion and adjustment
To change over form one kind of gas to another, for example from
methane to liquid gas, or to another type of gas, the use of suitable
injectors for the main burner is required, in accordance with the
table 1.
The injectors of the main burners and pilot for different types of
gas, marked with the relative diameter in hundredths of mm, are in
an envelope which is provided with the appliance. If injectors are
not available please contact the factory with model and serial num-
ber written on technical data sticker. After transformation or adap-
tation, carry out operating checks as described in paragraph 5.1.6
“Operation control”.
5.1.11 Replacement of burner injector
To replace the injector (pos. 30 fig. 2), open the doors. Unscrew the
injector from the injector-holder using a 12 spanner (pos. 29 fig. 2)
and replace the injectors with one able for the type of gas, see
table 1, install in reverse order. If necessary, disassemble the air
adjustment (pos. 33 fig. 2) by loosening the screws (pos. 39 fig. 2),
this will make replacement easier.
After fitting the new injectors, reset primary air distance “A” (fig. 2)
see table 1, and fasten the bushing with the appropriate screw.
After the replacement check the seal using a leack detector spray.
5.1.12 Replacement of burner pilot injector
To replace the pilot injector (pos. 34 fig. 3) open the doors. Unscrew
the nut (pos. 35 fig. 3) and with the help of a screwdriver unscrew
and replace the injectors with one able for the type of gas, see
table 1.
Screw the nut in again ensuring the seal is inserted too.
8
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38
37
39
34
36
35
33
Fig. 3
A
32 30
39
33
31
28
29
Fig. 2
