10
420010264900
Maior P 300/400 PR
EN
SUNTEC TA2C4 - TA3C4
PRIMING AND ADJUSTMENT OF OIL PUMP
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 cavi-
tation;
- That check valve is suitably designed for the duty.
The pump pressure is set at a value of 22-24 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
1
2
5
6
3
4
1 - INLET
2 - RETURN
3 - BLEED AND PRESSURE GAUGE PORT
4 - VACUUM GAUGE PORT
5 - PRESSURE ADJUSTMENT
6 - TO NOZZLE
2
1
3
4 5
6
7
BURNER INSTALLATION
1 - BURNER
2 - NUT
3 - WASHER
4 - GASKET
5 - BOLT
6 - BOILER
7 - GASKET
HYDRAULIC CIRCUIT
All burners are factory tested at 400 V - 50Hz 3-phase for motors, and 230V - 50Hz single phase with neutral for auxi-
liary equipments. Should it be necessary to power the burner with 230V - 50Hz, modify the connections on motor and
the terminal board as shown in the picture. Protect the burner supply line with suitable fuses and/or other safety devices
as required by the local regulations on the matter.
ELECTRICAL CONNECTIONS
1
-
HOSE
2
-
OIL FILTER
3
-
OIL COCK
A
-
SUCTION
R
-
RETURN
1
1
2
3
VS
VL
A
R
