elco Firebird FB 4 R LN, Инструкция по эксплуатации

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GENERAL
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EN
2 .6 .2 Controlled shutdown
–
Boiler temperature control interrupts heat request.
–
The fuel-oil solenoid valve closes and the flame is extinguished.
–
The post-ventilation starts: time factory-set at 15 s. After the burner motor switches off.
–
Burner enters standby.
2 .6 .3 Safety function
A safety shutdown occurs:
–
if a flame signal is present during preventilation (flame monitoring)
–
if no flame is produced within 5 seconds (safety time) of start-up (fuel authorisation)
–
if no flame is produced after an unsuccessful restart attempt in the event of 5 flame failures
during operation.
A safety shutdown is indicated by the malfunction lamp lighting up and it is then only possible to
reset the burner by pressing the reset button after the cause of the malfunction has been rectified.
For further information, see the automatic combustion control unit description.
Boiler
temperature
control
General
power
supply
Motor
Ignition
Transformer
Valve
Flame check
Flame
Pre heater
- -
tr to tp ts tpp
tpi
LINE
C
15s 5s
7s
<400s
15s
to Stand-by: the burner is
waiting for heat demand
tr Pre heater temps
tp Pre-Purge time
ts Ignition safety time
tpi Post-Ignition time
tpp Post-purge time
Fig. 6