Cuenod NC4 R101 Instrucciones De Montaje página 27

Start-up
Control and safety unit SH 113 characteristics
Code
Info : Wait for enable by the pre-heater thermostat *
Info : Pre-ventilation time/pre-ignition time
Defect : No flame signal at the end of the safety time delay.
Defect : Stray light during the preventilation and the firing.
Defect : Flame extinguishing in service.
– Defect : The unit has been purposely shutdown.
Code
Short luminous signal
Long luminous signal
Short break
– Long break
*For burners with nozzle pre-heater
Information from the MDE system saved in the blackbox can be read easily using a Cuenoscope or read and extracted by a
computer running the Cuenocom software.
Input signals required
Output signals
Limiter
1 Unit (and heater) energising
2 Motor and transformer energising
3 Fuel valve energising
4 Flame checking
Push on R during
...
... less than 9
seconds
... between 9 and
13 seconds
... more than13
seconds
Information or description of the defect
Key word
Heater Burner motor Fuel oil valve
5 Firing transformer
shutdown - operating conditions
0 Control end
10 Defect mode
04/2006 - Art. Nr. 13 010 551E
Control and safety unit SH 113 is
appliance of which the programme is
... causes ...
managed by a microcontroller. It also
integrates the defect analysis through
coded luminous signals.
When the unit is defective, button R
release or locking of
the control unit.
lights on. The defect code appears every
ten seconds until the resetting of the
unit.
erasing of the
Further investigations are possible by
statistics in the
reading the microcontroller non volatile
control unit.
memory.
The unit stops the burner when the
no effect on the
voltage falls below the required
control unit.
minimum value. It restarts automatically
the burner when the normal voltage is
restored.
A thermostatically controlled switching
off is compulsory every twenty four
hours.
The removal and setting up of the unit
take place with the unit de-energised.
The unit must be neither opened nor
repaired.
Transformer Flame control
tw Holding time if heater present
tvl Preventilation and pre-firing time
ts Safety time
tn Post-firing time
Defect Unlocking
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