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6
Maintenance
6.1
Notes on safety for the maintenance
The periodic maintenance is essential for the good operation, safe-
ty, 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 opera-
tions:
6.2
Maintenance programme
6.2.1
Maintenance frequency
The gas combustion system should be checked at
least once a year by a representative of the manu-
facturer or another specialised technician.
6.2.2
Checking and cleaning
Combustion
The optimum calibration of the burner requires an analysis of the
flue gases. Significant differences with respect to the previous
measurements indicate the points where more care should be ex-
ercised during maintenance.
Gas leaks
Make sure there are no gas leaks on the conduit between the gas
meter and the burner.
Gas filter
Replace the gas filter when it is dirty.
Flame inspection window
Clean the glass of the flame inspection window.
Combustion head
Open the burner and make sure that all the components of the
combustion head are:
–
undamaged
–
not deformed due to high temperature
–
free of ambient dirt or dust
–
free of rusted materials
–
adequately positioned
Make sure that the gas outlet holes for the start-up, on the combus-
tion head distributor, are free of dirt or rust deposits.
In case of doubt, disassemble the inner part 5)(Fig. 40, page 31).
20028248
Maintenance
Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
Turn off the fuel interception tap.
DANGER
Wait for the components in contact with heat
sources to cool down completely.
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 produce good combustion.
Use the appropriate card to record the new combustion values;
they will be useful for subsequent controls.
UV scanner
In order to reach the UV scanner (Fig. 39), proceed as follows:
Extract the UV scanner 2).
Clean the glass cover from any dust that may have
accumulated.
Be extremely careful while troubleshooting the
WARNING
Open the master switch to disconnect power
2
30
detector; line voltage is present on some of the
terminals when power is on.
before removing or installing the detector.
D10628
Fig. 39
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