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Idiomas disponibles
Idiomas disponibles
ELECTRODES SETTING
Attention:
Before assembling or remo-
ving
the nozzle, loosen the
screw (A) and move the elec-
trodes ahead.
BURNER START-UP CYCLE
Normal
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
ADJUSTMENTS, TO AVOID FLAME - DETACHMENT, AT BURNER - IGNITION
This inconvenience can occur, when the temperature of the gas-oil decreases below + 5 °C.
1)
CORRECT POSITIONING OF THE ELECTRODES
See figure 10.
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).
2351
(See fig. 10)
Fig. 10
D5288
~
12s
MOVE THE ELECTRODE
HOLDER BACKWARDS TO
4 ±
THE END
0.3 mm
A
Lock-out, due to failure to light
~
8
GB
4.5 ±
~
12s
5s
0.5 mm
D5229
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