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POST-VENTILATION TIME
It is possible to set the post-ventilation time from a minimum of 0s (post-ventilation disabled) to a maximum of
255s.
Press key i to access the PARAMETER VALUE MODIFICATION mode, during which the value of the parameter
displayed flashes.
In MODIFY PARAMETER VALUE mode, use the + and – keys to modify the value.
Press key i to memorise the current value displayed.To exit this mode without memorising the value, press key R
or wait 10s without pressing the keys.
FIRST STAGE SOLENOID VALVE ADVANCED ACTIVATIONIt is possible to introduce an advance on the first
stage solenoid valve activation (or minimum modulation) in the burner ignition phase..
Post-ventilation
time (in sec)
Parameter value
(da 0 a 30)
This advance can be set from 0 to 30% of the first stage air flow rate (or minimum modulation).
More precisely, at the end of the pre-ventilation phase, the air damper run is not stopped in first stage position (or
minimum modulation) but in a position that is slightly lower on the basis of the parameter setting in question. When
this has been carried out, the first stage solenoid valve is activated (or minimum modulation).
By doing this, burner ignition is made easier (less excess air on ignition).
Once the flame signal presence has been detected, the damper is immediately taken into the first stage position
(or minimum modulating).The air damper positioning sequence just described is only performed in the burner
ignition phase and not in the regulation phase during functioning.If you do not wish to make use of the function
just described, just set the parameter in question at 0.
Press key i to access the PARAMETER VALUE MODIFICATION mode, during which the value of the parameter
displayed flashes.In MODIFY PARAMETER VALUE mode, use the + and – keys to modify the value.
Press key i to memorise the current value displayed.
To exit this mode without memorising the value, press key R or wait 10s without pressing the keys.
SECOND STAGE SOLENOID VALVE ADVANCED ACTIVATION (Not managed if MODULATING BURNER)It is
possible to introduce an advance on the second stage solenoid valve activation.
Summary of Contents for LMB LO 300 BC 2ST
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