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Maintenance
8.1 Notes on safety for the maintenance
The periodic maintenance is essential for the good operation,
safety, yield and duration of the burner.
It allows you to reduce consumption and polluting emissions and
to keep the product in a reliable state over time.
Before carrying out any maintenance, cleaning or checking oper-
ations:
8.2 Maintenance programme
8.2.1 Maintenance frequency
The combustion system should be checked at least once a
year by a representative of the manufacturer or another
specialised technician.
8.2.2 Checking and cleaning
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases.
Significant differences with respect to the previous measure-
ments indicate the points where more care should be exercised
during maintenance.
Combustion head
Open the burner and make sure that all components of the com-
bustion head are in good condition, not deformed by the high
temperatures, free of impurities from the surroundings and cor-
rectly positioned. If in doubt, disassemble the elbow fitting
7)(Fig. 44).
UV cell
Clean the glass cover from any dust that may have accumulated.
The photo-electric cell 1)(Fig. 42) is held in position by a pressure
fit and can therefore be removed by pulling it outward forcefully.
Flame inspection window
Clean the flame inspection window (Fig. 43).
Burner
Check for excess wear or loose screws. Also make sure that the
screws securing the electrical leads in the burner connections are
fully tightened.
Clean the outside of the burner.
Fan
Check to make sure that no dust has accumulated inside the fan
or on its blades, as this condition will cause a reduction in the air
flow rate and provoke polluting combustion.
Boiler
Clean the boiler as indicated in its accompanying instructions in
order to maintain all the original combustion characteristics in-
tact, especially the flue gas temperature and combustion cham-
ber pressure.
8 Maintenance
The maintenance interventions and the calibration
of the burner must only be carried out by qualified,
authorised personnel, in accordance with the con-
tents of this manual and in compliance with the
standards and regulations of current laws.
Disconnect the electrical supply from the burner
by means of the main system switch.
Close the fuel interception tap.
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