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Sun G10
3. SERVICE AND MAINTENANCE
All the adjustment, commissioning and maintenance operations must be performed by Qualified
Personnel, in compliance with the standards in force. The local sales organisation and Customer Service
Centre is available for any further information.
FERROLI S.p.A. declines all liability for damage to persons and/or things deriving from tampering with
the appliance by non-authorised persons
3.1 Settings
Head and air damper adjustment
The adjustment of the head depends on the flow-rate of the
burner. The head is adjusted by rotating the adjustment
screws "B" clockwise or anticlockwise until the notch on rod
"A" is n line with the reference.
This modifies the position of the baffle in respect to the
draught tube, and as a consequence the flow of air.
To adjust the air flow-rate, use screw "C".
To limit the amount of dispersion from the stack
when the boiler is off, the burner is fitted with a
gravity-closing air damper that closes automatically
when the burner stops.
To perform a preliminary adjustment of head and air damper during installation (before commissioning
and consequently calibrating the appliance using instruments), use the graph below:
30
25
20
15
10
5
0
40
Adjusting pump pressure
The pressure of the pump is factory-set to 12 bars, for optimum operation, and normally should not be
modified. Nonetheless, if under specific circumstances a different pressure needs to be set, once having
attached the pressure gauge and ignited the burner, use the adjustment screws "6" indicated in fig. 4.
In any case, it is recommended to keep within the range 10 - 14 bars.
50
60
70
fig. 7
80
90
100
C
A
B
Air adjustment
Head adjustment
fig. 8
Output (kW)
110
120
23
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