Control Unit - elco VECTRON GL 06.1200 DUO PLUS Betriebsanleitung

Function
Combustion control unit LFL 1.333/Function description
Function description
Control thermostat requests heat
–
The control device control program
–
starts when the air pressure switch
contact is at rest, sufficient gas
pressure is reported by the gas
pressure switch and the air flap is in
"ZU" position (cam II)
Burner motor starts up
–
The air flap opens to full load
–
position (cam I)
Pre-ventilation time approx. 30 sec.
–
During initial circulation time
The blower pressure is monitored.
–
The furnace is monitored for flame
–
signals.
Gas fuel selected
At end of initial circulation time:
the air flap is moved to gas ignition
–
position (cam III)
the ignition is closed
–
the main and safety valve are
–
opened
the burner starts up
–
the control system release at end of
–
safety time
the air flap is opened to "low load
–
(gas)" (cam V)
control operation starts
–
max. load gas is achieved in cam
–
position I
Oil fuel selected
At end of initial circulation time:
the air flap is moved to oil ignition
–
position (cam IV)
the ignition is closed
–
magnetic valve Y1 Stage 1 is
–
opened
the burner starts up (Stage 1)
–
Switchover to oil stage 2
When power stage 2 is requested:
the air flap is moved to the 2nd
–
stage position (cam VI)
in cam position VII, magnetic valve
–
Y2 opened, burner burns with two
nozzles
Switchover to oil stage 3
the air flap opens to stage 3 (cam I)
–
in cam position VII, magnetic valve
–
stage 3 opened
06/2006 - Art. Nr. 13 018 118B
t1 Pre-ventilation time
30s
t2 First safety time
t3 Pre-ignition time
- Safety time when the flame
signal disappears
Commands for
combustion control
unit.
Necessary
input signals.
EN
3s
6s
< 1s
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