2403
9
START-UP CYCLE
ONLY FOR LIGHT OIL
ADJUSTMENTS TO AVOID FLAME DETACHMENT AT BURNER IGNITION
1) CORRECT
POSITIONING OF THE ELECTRODES
2) NOZZLE:
ATOMIZING ANGLE:
Choose 60° nozzle.
3)
PUMP - SETTING
When the temperature of the light oil decreases below +5 °C, increase the pressure to 14 bar.
4) 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 2.5.
Instead, the setting is made on set-point 3.5.
5)
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).
Normal
Lock-out, due to light-failure
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
~
12s
D5229
~
12s
~
5s
4
±
0.3 mm
D5288
A
6.5
±
0.5 mm
MOVE THE ELECTRODE HOLDER
BACKWARDS TO THE END
