Adjusting Pump Pressure - Ferroli SUN G30 Instrucciones De Uso

SUN G30
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:
Model
GN2 N 13
GN2 N 14
GN2 N 7
GN2 N 8
GN2 N 9
Prextherm N 240
Prextherm N 300
RSW 240
RSW 300

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.
3.2 Commissioning
Checks to be performed on first ignition, and after all maintenance operations that involve the discon-
nection of the appliance from systems or intervention on the safety devices or parts of the burner:
Before igniting the burner
• Check that the burner is correctly fastened to the boiler, and the preliminary adjustments described
previously have been performed.
• Make sure that boiler and the system have been filled with water or diathermic oil, that the valves in
the water circuit are open and that the flue gas exhaust pipe is free and correctly sized.
• Check that the boiler door is closed, so that the flame only propagates inside the combustion cham-
ber.
• Fit the pressure gauge and the vacuometer to the pump (removed before operation).
• Open the gate valves in the oil pipes, making sure that there is fuel in the tank and that the return
pipe is not blocked.
Attention: Blockages may cause the pump seal device to break.
GB
Heat
Nozzles
output
Max min
kW kW 1st stage 2st stage
254 200 3 2,25
274 215 3,5
217 128 2,5 1,75
270 160 3,5 2,25
324 192 4
261 172 4 1,75
326 210 4,5
261 170,9 4 1,75
326 209,5 4,5
Cod. 35442643 - 08/2007 (Rev. 00)
Pump
pressure
bar 1st stage
12 12°
2 12 13°
12 6°
11 11°
3 11 13°
12 13°
2,5 12 13°
12 13°
2,5 12 13°
Servomotor
L (mm)
Ari
EV
2st stage
18 15° 47
20 15° 46
16 10° 52
18 15° 48
22 15° 40
23 15° 46
25 15° 33
23 15° 46
25 15° 33
Notch
15
16
10
14
22
13
26
13
26
33