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6.5.4
Lockout types and triggering times in case of
burner malfunction
Description of types of faults
Presence of flame during standby time "t2"
Presence of flame in pre-purging, or loss of air pressure during
operation
Air pressure loss during pre-purging;
No ignition at the end of the safety time "ts"
Disappearance of flame during operation
Fault in air pressure switch before or after the start-up of the burn-
er
6.6
Control box reset
6.6.1
Reset using built-in button
To carry out the control box reset, proceed as follows:
Press and hold the reset button for 1-2 seconds.
In case the burner does not restart it is necessary to check if
the limit thermostat (TL) is closed.
If the control box reset button continues to blink, signalling
the cause of the failure (red LED), it is necessary to press
the button again for no more than 2 seconds.
If the reset button is pressed for more than 2 sec-
onds, the control box goes into visual diagnostic
mode and the signalling LED begins to blink (see
WARNING
"Visual diagnostics of the control box" on page 24).
6.6.2
Reset using remote connection
An accessory connection is provided for the remote reset of the
control box.
6.7
Recycle function (in the event of flame disappearance during operation)
The control box allows recycling, i.e. the complete repetition of
the starting programme, for 3 attempts maximum, in the event the
flame goes out during operation.
6.8
Logging of burner operating parameters
The control box allows the logging (even without the electrical
power supply) of the number of lockouts that have occurred, the
type of lockout that has occurred (only the last one) and the op-
erating time of the opening of the oil valve.
That way, you can determine how much fuel has been consumed
during operation.
For the display of these parameters it is necessary to connect the
diagnostic software kit.
Start-up, calibration and operation of the burner
Lockout
After max. 30 seconds (after TL)
Within 1 second
After max. 1 repetition within 1 second
Within 5 seconds
After max. 3 repetitions within 1 second
Within 120 seconds, within 15 seconds
6.6.3
Colour code of the control box reset button
LED
Operating status
Waiting
Pre-purging
Ignition transformer
Regular flame
Post-purging
Recycle
Continuous purging (*)
Presence of flame during waiting
time
Lockout
Lockout with continuous purging (*)
(*) only for suitable applications.
The further disappearance of the flame (4
lockout of the burner.
If there is a new heat request during the recycle, the 3 attempts
are restored to the switch-over of the limit thermostat (TL).
23
GB
Tab. K
LED colour codes
LED switched
off
Green
Green
Green
Green
Green
Green
LED switched
off
Red
Red + Green
th
time) determines the
20063692
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