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6
Maintenance
6.1
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.
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
DANGER
standards and regulations of current laws.
Before carrying out any maintenance, cleaning or checking op-
erations:
Disconnect the electricity supply from the burner by
means of the main switch of the system.
DANGER
Close the fuel interception tap.
DANGER
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases. Significant differences with respect to the previous
measurements indicate the points where more care should be ex-
ercised during maintenance.
Gas leaks
Make sure that there are no gas leaks on the pipework between the
gas meter and the burner.
Flame inspection window
Clean the flame inspection window 1)(Fig. 50).
D10500
20031446
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 tem-
peratures, free of impurities from the surroundings and correctly
positioned. If in doubt, disassemble the elbow fitting 7)(Fig. 52,
page 37).
Nozzles (fuel oil)
Do not clean the nozzle orifices. The nozzle filters however may be
cleaned or replaced as required.
Replace the nozzles every 2-3 years or whenever necessary.
Combustion must be checked after the nozzles have been
changed.
Flexible hoses (fuel oil)
Check to make sure that the flexible hoses are still in good condi-
tion and that they are not crushed or otherwise deformed.
UV scanner
In order to reach the UV scanner, proceed as follows:
Extract the UV scanner 2).
Clean the glass cover from any dust that may have accumu-
lated.
2
1
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.
Combustion
Adjust the burner if the combustion values found at the beginning
of the operation do not comply with the regulations in force, or at
any rate, do not correspond to good combustion.
Fig. 50
36
GB
D10628
Fig. 51
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