Ecoflam Multiflam 1500.1 Mode D'emploi page 30

420010310000 Multiflam 1500.1 - 1800.1 PR/PR
EN
Pump inlet pressure:the vaporisation of light fraction of heated heavy oil causes premature pump wear, to avoid this,
use the inlet pressures shown in the graph.
4
1
VERIFY:
- That piping system is perfectly sealed; - That the use of hoses is avoided whenever is possible (use copper pipes prefe-
rably); - 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 22-25 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 con-
sequent, 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.
PUMP'S PRESSURE / OIL TEMPERATURE DIAGRAM
bar 6
5
4
3
2
1
0
50
PRIMING AND ADJUSTMENT OF OIL PUMP
SUNTEC T.......
3
5
100
Oil temperature Oil temperature
1 - INLET
6
2 - RETURN
3 - BLEED AND PRESSURE GAUGE PORT
4 - VACUUM GAUGE PORT
5 - REGULATING VALVE TV
6 - TO NOZZLE
2
30
150 C°