Ferroli SUN G10 Bedienungs-, Installations- Und Wartungsanleitung Seite 25

Sun G10
Checks and adjustments during operation
• Connect a combustion analyser to the boiler outlet and operate the burner at full power for 10 minutes;
in the meantime, check the operation of the flue gas exhaust pipe.
• Slowly adjust the air damper until reaching the required excess air value for operation, using the
combustion analyser to check the O2 content in the flue gas. The O2 content in the flue gas should not
be less than 2.5% (risk of polluting combustion) and should not exceed 5% (risk of difficulty in ignition
and production of soot).
• Then perform a number of ignition cycles. In the event of flame pulsation or difficulty in igniting, adjust
the head, again using the combustion analyser to check the O2 content in the flue gas.
• Make sure that the pressure in the combustion chamber corresponds to the value indicated by the
manufacturer of the boiler
• Perform a complete analysis of the flue gas and check compliance with the limits set by the standards
in force.
3.3 Maintenance
The burner requires periodic maintenance, to be performed at least once a year by authorised enabled.
The following basic operations must be performed:
• check and clean the internal parts of the burner, the tank and the boiler, as shown in the following
paragraphs;
• complete analysis of combustion (after normal operation for at least 10 minutes) and check the
adjustments are correct;
Opening the cover and dismantling the burner
Before performing any cleaning
operations or checks inside the
burner, disconnect the burner
from the power supply using the
main switch and close the fuel
supply.
• To open the appliance, unscrew the
screws (A) and remove the cover (B).
The internal components, pump, motor,
damper, etc. can be accessed directly.
• To dismantle the appliance, unscrew
the nut (C), remove the burner from the
boiler and position it so as to allow
access to the head, electrodes and
nozzle.
Checking the parts and components
Pump
The pressure must be stable at the value set during installation, and in any case between 10 and 14 bars.
No noise must be produced.
In the case of instable pressure or noisy pump, disconnect the flexible pipe from the line filter and feed
in the fuel from a tank located near the burner. This identifies whether the cause of the anomaly is the inlet
pipe or the pump.
fig 11
C
A
B
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