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5.
MAINTENANCE
Disconnect the electric supply to the burner by switching off the main power switch and close the gas
shut-off valve before maintaining or checking the system.
The burner requires scheduled maintenance that must be carried out by qualified personnel and in compliance
with local legislation.
Scheduled maintenance is vital for the smooth operation of the burner; it avoids waste of fuel and reduces harm-
ful emissions into the atmosphere.
THE FUNDAMENTAL OPERATIONS TO CARRY OUT ARE AS FOLLOWS:
Check that the burner and gas train electrical connections are correct.
Check that the positioning of the air pressure test point is correct.
Check that the gas train is suited to the burner capacity, the type of gas used and the network gas pressure.
Check that the positioning of the combustion head is correct and that it is properly fixed to the boiler.
Check that the air pressure switch and the gas pressure switch are set correctly.
Check that the ionisation probe and the electrode are positioned correctly.
Let the burner run at full capacity for about ten minutes, setting all the elements correctly as explained in this
manual.
Then carry out the analysis of the combustion by checking:
CO
2
percentage (%);
CO content (ppm);
NOx content (ppm);
Ionisation current (µA).
Flue gases temperature at the stack.
