Ferroli SUN G3 R Instrucciones De Uso página 27

SUN G3 R
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 ue gas exhaust pipe.
• Slowly adjust the air damper until reaching the required excess air value for operation, using the com-
bustion analyser to check the O2 content in the ue gas. The O2 content in the ue gas should not be
less than 2.5% (risk of polluting combustion) and should not exceed 5% (risk of dif culty in ignition and
production of soot).
• Then perform a number of ignition cycles. In the event of ame pulsation or dif culty in igniting, adjust
the head, again using the combustion analyser to check the O2 content in the ue gas.
• Make sure that the pressure in the combustion chamber corresponds to the value indicated by the ma-
nufacturer of the boiler
• Perform a complete analysis of the ue 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 pa-
ragraphs;
• complete analysis of combustion (after normal operation for at least 10 minutes) and check the adjust-
ments 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.
GB
C
g 10
Cod. 3540C353 - Rev. 01 - 02/2015
A
B
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