Nozzle Cleaning And Replacement; Priming And Adjustment Of Oil Pump; Start-Up And Adjustment - Ecoflam MAIOR P 300.1 AB Manual Del Usuario

B
LB771 Maior P 300.1/400.1 AB
3÷4 mm
Use only the suitable box wrench provided for this operation to remove the nozzle, taking care to not damage
the electrodes. Fit the new nozzle with the same care.
Note: Always check the position of electrodes after having replaced the nozzle (see illustration). A wrong posi-
tion could cause ignition troubles.
SUNTEC J 7 C 1000
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SUNTEC SUNTEC
SUNTEC
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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 12 bar (13 bar Maior P 300.1) 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 facilita-
te 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.
Once having installed the burner, check the following items:
- The burner power feeding and the main line protection fuses
- The correct length of pipes and that the same are sealed.
- The type of fuel, which must be suitable for burner.
- The connection of boiler's thermostats and all the safeties.
- The motor rotation direction.
- The correct calibration of the motor's thermal protection.
When all the above mentioned conditions are checked and accomplished, it is possible to go on with burner's

NOZZLE CLEANING AND REPLACEMENT

3÷4 mm
5÷6 mm

PRIMING AND ADJUSTMENT OF OIL PUMP

4
1
6
5
3
2

START-UP AND ADJUSTMENT

5÷6 mm
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2
pag.12
1 - INLET
2 - RETURN
3 - BLEED AND PRESSURE
GAUGE PORT
6
4 - VACUUM GAUGE PORT
5 - PRESSURE
ADJUSTMENT
6 - TO NOZZLE