Bentone bg 300, Installation And Maintenance Instruction

Page: 13 / 44

13
Bentone
4.2.1 Components
A1 Burner control
A2 Power control
B1 Ionization electrode
F1 Operating fuse
H1 Operating lamp
M1 Motor
S3 Control thermostat
S8 Air pressure switch
S9 Gas pressure switch
T1 Ignition transformer
X1 Connection terminal board
X2 Earth terminal
Y1 Solenoid valve 1
4.3 Function LME...
1. Operating switch ON-Thermostat ON-Gas pressure switch ON
A check that the air pressure switch does
not indicate fan pressure is
carried out.
2. Burner motor starts
A check that the air pressure switch indicates sufficient fan pressure is
carried out.
3. The ignition spark is created
4. The gas solenoid valve is open
The gas is ignited. The ionisation electrode now indicates a flame.
5. The safety time expires
The ignition spark ceases. The safety period ceases. If the spark is missing
or it disappears after this time limit, the gas burner control is blocked.
6. Operating position
7. Stop
The operation of the burner can now be stopped with the control switch or
thermostat.
If the gas burner control is blocked
Red light in the gas burner control is lit. The burner is restarted by pushing
the reset button.
4.3.1 Technical data
! Mains connection and fuse
in accordance with local
regulations.
LME11.230C2E LME21.230C2
2 s 2 s
20 s 20 s
2.5 s 2.5 s
< 3 s < 3 s
< 1 s < 1 s
< 1 s < 1 s
5 µA 5 µA
20 µA 20 µA
160303-301
Preiginition time
Prepurge time
Postignition time
Safety lockout time
Reset time after lockout
Reaction time on fl ame failure
Min. ionisation current at fl ame
Max. ionisation current