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20098687
30
GB
Start-up, calibration and operation of the burner
Once the operations are done, the control box’s initial status must
be restored using the resetting procedure described above.
The sequence of led pulses issued by the control box identifies
the possible types of malfunction, which are listed in the table
Tab. N.
6.11
Normal operation / flame detection time
The control box has a further function to guarantee the correct
burner operation (signal:
GREEN LED permanently on).
To use this function, wait at least ten seconds from the burner ig-
nition and then press the control box button for a minimum of 3
seconds.
After releasing the button, the GREEN LED starts flashing, as
shown below.
The pulses of the LED constitute a signal spaced by approxi-
mately 3 seconds.
The number of pulses will identify the DETECTION TIME of the
probe since the opening of gas valves, according to: Tab. J.
Tab. J
This is updated in every burner start-up.
Once read, the burner repeats the start-up cycle by briefly press-
ing the control box button.
6.12
Flame presence check
The burner is fitted with an ionisation system to check that a
flame is present. The minimum current for control box operation
is 2 µA.
The burner provides a much higher current, so controls are not
normally required.
However, if it is necessary to measure the ionisation current, dis-
connect the plug-socket 23)(Fig. 6 on page 13) on the ionisation
probe cable and insert a direct current microammeter with a base
scale of 100 µA.
Pressing the button
Control box status
From 1 to 3 seconds
Reset of the control box without visualisation of the visual diagnostics.
More than 3 seconds
Visual diagnostics of the lockout condition:
(LED blinks at 1-second intervals).
More than 3 seconds starting from the condition of
visual diagnostics
Diagnostic software using an optical interface and PC
(possibility of displaying the hours the machine has been running, faults, etc...)
Press button
Signal
Signal
GREEN LED on
Interval
wait at least 10s
for > 3s
3s
Signal
Flame detection time
1 blink
0.4 s
2 blinks
0.8 s
6 blinks
2.8 s
WARNING
If the result is > 2 s, ignition will be retarded.
Check the adjustment of the hydraulic brake of the
gas valve, the air damper and the combustion
head adjustment.
WARNING
Carefully check the polarities!
Fig. 33
RMG/M
D2210
Summary of Contents for 3897304
Page 2: ...Translation of the original instructions ...
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