Pump's Pressure/Oil Temperature Diagram - Ecoflam MAXFLAM D 10 Manual

PUMP'S PRESSURE / OIL TEMPERATURE DIAGRAM
The gasification of volatile fractions in preheated heavy oil seems to be the main cause of premature fuel
pump wear. To avoid such a problem, adjust pump pressure according to the diagram hereinafter.
WARNING: For a correct working of the pump, verify what follows:
Pump :
Oil temperature at the pump:
Maximum allowable pressures:
SUNTEC E
VERIFY: - That piping system is perfectly sealed;
- That the use of hoses is avoided whenever is possible (use copper pipes preferably);
- That depression is not greater than 0,45 bar, to avoid pump's cavitation;
- That check valve is suitably designed for the duty;
The pump pressure is set at a value of 23 bar during the testing of burners. Before starting the burner, bleed
the air in the pump through the gauge port. Fill the piping with light-oil to facilitate the pump priming. Start
the burner and check the pump feeding pressure. In case the pump priming does not take place during the
first prepurging, with a consequent, subsequent lock-out of the burner, rearm the burner's lock-out to restart,
by pushing the button on the control box. If, after a successful pump priming, the burner locks-out after the
prepurging, due to a fuel pressure drop in the pump, rearm the burner's lock-out to restart the burner. Do
never allow the pump working without oil for more than three minutes.
Note: before starting the burner, check that the return pipe is open. An eventual obstruction could damage
the pump sealing device.
bar 6
5
4
3
2
1
0
50
Temperatura olio / Oil temperature
Température fioul/ Temperatura combustible
SUNTEC E4NC 1069
Max. 120 °C
Max. 3,5 bar on inlet.
PRIMING AND ADJUSTMENT OF OIL PUMP
1 - INLET
2 - RETURN
3 - BLEED AND PRESSURE GAUGE PORT
4 - VACUUM GAUGE PORT
5 - PRESSURE ADJUSTMENT
6 - TO NOZZLE
- 17 -
420010404000 Maxflam D 10-20
100 150 C
EN