Ecoflam MAXFLAM 20 TL Инструкция по эксплуатации онлайн [17/72] 408247

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420010404000 Maxflam D 10-20

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 : SUNTEC E4NC 1069

Oil temperature at the pump: Max. 120 °C

Maximum allowable pressures: Max. 3,5 bar on inlet.

50 100 150

bar

Temperatura olio / Oil temperature

Température fioul/ Temperatura combustible

Pressione di alimentazione pompa / Pump inlet pressure

Pression pompe a l'entree/ Presión bomba al ingresso

SUNTEC E

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

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.