baltur COMIST 20 Installation, Use And Maintenance Instruction Manual page 61

MALFUNCTION AND LOCK CAUSE DIAGNOSTICS.
In the event of a burner lock-out, the red light on the reset button will be fixed.
Keeping it pressed in for more than 3 seconds, the diagnostics procedure is activated (red light with quick flashes). The table below indicates the
meaning of the lock-out or failure according to the number of red flashes.
Holding the reset button down for at least 3 seconds, the diagnostics function will be interrupted.
The diagram below shows the operations to be carried out to activate the diagnostic functions even with communication interface through the
"OCI400" connection cable.
Operating position
O n
E K
> 3 s
Visual indication
2 blinks
●●
3 blinks
●●●
4 blinks
●●●●
5 blinks
●●●●●
6 blinks
●●●●●●
7 blinks
●●●●●●●
8 blinks
●●●●●●●●
9 blinks
●●●●●●●●●
10 blinks
●●●●●●●●●●
14 blinks
●●●●●●●●●●●●●●
• During the time the cause of fault is diagnosed, the control outputs are deactivated.
• - Is the burner shut down
• - The alarm signal AL "is on terminal 10 which is under voltage.
• Press the lockout reset button for about 1 second (< 3 seconds) to reactivate the device and start a new cycle.
Operating position
Visual indication
Colour code table
x x x x xx x x
x x x x xx x x
x x x x xx x x
x x x x xx x x
x x x x xx x x
x x x x xx x x
AL to terminal Possible causes
10
On No flame at the end of the safe ignition time<TSA>
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner, no fuel
- No ignition Faulty ignition transformer
On - Defective LP air pressure switch
- No or faulty air pressure signal after completion "t10"
- LP pressure switch contact welded in standby position
On Extraneous light during the ignition phase
On - No air pressure switch signal
- LP pressure switch contact welded in work position
On Not used
On No flame signal during normal operation, ignition repetition (limitation of ignition
repetitions)
- Malfunction of the fuel valves
Faulty or soiled flame detector
- Poor adjustment of burner
On Not used
On Not used
On Wiring problems or damage inside the device
On CPI contact not closed
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Operating position
PC / analyser
interface
diagnostics
E K
> 3 s
ENGLISH
R e se t
E K
< 3 s