Riello 40 G20S Instrucciones De Instalación, Montaje Y Funcionamiento página 11

ADJUSTMENTS, TO AVOID FLAME - DETACHMENT, AT BURNER - IGNI-
TION
1) CORRECT POSITIONING OF THE ELECTRODES
2) NOZZLE: ATOMIZING ANGLE
Choose 60° nozzle
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 3.5.
Instead, the setting is made on set-point 4.5.
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).
2406
4 ±
0.3 mm
D6313
A
9
MOVE THE ELEC-
TRODE HOLDER BACK-
WARDS TO THE END
6.5 ±
0.5 mm
GB