Riello G10 Installation, Use And Maintenance Instructions page 12

ADJUSTMENTS, TO AVOID FLAME - DETACHMENT, AT BURNER - IGNITION
This inconvenience can occur, when the temperature of the light oil decreases below + 5 °C.
1) CORRECT POSITIONING OF THE ELECTRODES
2) PUMP - SETTING
The pump is factory set, at a pressure of 12 bar.
When the temperature of the light oil decreases below + 5 °C, increase the pressure to 14 bar.
3) COMBUSTION-HEAD SETTING
Regulate the combustion-head one set-point further ahead than indicated in the instructions.
Example: the instructions require to set the combustion-head on set-point 3.
Instead, the setting is made on set-point 4.
4) FAN - AIR DAMPER ADJUSTMENT
Adjust the damper, reducing the excess air until the Bacharach number is not near 1.
(i.e. a combustion with the lowest possible excess-air).
2399
4 ±
0.3 mm
D5288
A
MOVE THE ELECTRODE
HOLDER BACKWARDS TO
THE END
10 GB
4.5 ±
0.5 mm