Ferroli SUN G3 R Instrucciones De Uso página 25

SUN G3 R
3. SERVICE AND MAINTENANCE
All the adjustment, commissioning and maintenance operations must be performed by Quali ed 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 ow-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 modi es the position of the baf e in respect to the draught
tube, and as a consequence the ow of air.
To adjust the air ow-rate, use screw "C" after loosening nut
"D". At the end of adjustment tighten nut "D".
To limit the amount of dispersion from the stack when
the boiler is off, the burner is tted 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:
Adjusting pump pressure
The pressure of the pump is factory-set to 12 bars, for optimum operation, and normally should not be
modi ed. Nonetheless, if under speci c 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 g. 4. In
any case, it is recommended to keep within the range 10 - 14 bars.
GB
g. 7
Cod. 3540C353 - Rev. 01 - 02/2015
C
A
B
Air adjustment
Head adjustment
Output (kW)
D
g. 8
25