Ferroli ATLAS D 30 PLUS UNIT Instructions D'utilisation, D'installation Et D'entretien page 42

Pump pressure adjustment
The pump pressure is factory set for optimum operation and should not normally be
changed. However, if special needs require a different pressure, after applying the pres-
sure gauge and lighting the burner turn the adjustment screw "6" indicated in fig. 142. In
any case, make sure to keep within the range of 10 - 14 bar.
fig. 25 - SUNTEC pump
3
6
2
fig. 26 - DANFOSS pump
1. Inlet (suction)
2. Return with internal bypass grub screw
3. Outlet to nozzle
4. Pressure gauge connection
5. Vacuum gauge connection
6. Adjustment screw
Head and air shutter
Adjust the head and air flow rate according to the burner power as indicated in fig. 144
Turn the head adjustment screw B (fig. 145) clockwise or anticlockwise until the mark on
rod A (fig. 145) coincides with the pointer.
fig. 27 - Burner adjustments graph SUN G6R
A Power
B Adjustment pointer
C Oil flow rate
"L" head (mm)
Air
42
EN
To adjust the air flow, turn screw C (fig. 145) after loosening nut D. After making the ad-
justment, tighten nut D.
Position of electrodes - baffle
After fitting the nozzle, check correct positioning of the electrodes and baffle, according
to the values given below. It is advisable to check the values after every operation on the
head.
4
5
4.2 Commissioning
1
B
Before lighting the boiler
•
•
•
•
•
•
•
•
•
Start-up
cod. 3540U263 - 06/2012 (Rev. 00)
ATLAS D 30 PLUS UNIT
fig. 28 - Burner adjustment
3
L
1
fig. 29 - Electrode - baffle position
Checks to be made at first lighting, and after all maintenance operations involving dis-
connection from the systems or an operation on safety devices or parts of the boiler:
Open any on-off valves between the boiler and the systems.
Check the tightness of the fuel system.
Check the pre-filling of the expansion tank
Fill the water system and make sure that all air contained in the boiler and the system has
been vented by opening the air vent valve on the boiler and any vent valves on the system.
Make sure there are no water leaks in the system, hot water circuits, connections or boiler.
Make sure the electrical system is properly connected and the earth system works properly.
Make sure there are no flammable liquids or materials in the immediate vicinity of the boiler.
Fit the pressure gauge and the vacuum gauge on the pump (remove after starting) of the
burner.
open the gate valves along the diesel pipe
P
P
fig. 30 - Starting
VE
G
VE
G