Bentone BG 800 CN, Installation And Maintenance Instruction

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ELECTRIC EQUIPMENT
Technical data
Pre-purge time with full air volume: 31,5 s
Pre-iginition time: 6 s
Safety time: 3 s
Post-ignition time: 3 s
Reset after lock-out Immediately
Time of re-start: 18 s
Ambient temperature: -20°C to +60°C
Protective standard: IP 40
Supervision of ionization current
Voltage at the detector electrode operation: 330V ± 10%
test: 380V ± 10%
Short circuit current max. 0,5 mA
Min. required ionization current 6 µ A
Recommended range of measuring device 0...50 µ A
a - b
Start-up sequence
b - b´
"idle steps" up to the self shut-down
of the sequence switch
b ( b´) - a
Post-purge sequence
172 405 27 07-01
In the event of fault conditions the
fuel supply is always interrupted
immediately and, simultaneously,
the sequence switch stops and thus
the lockout indicator. The symbol
appearing above the reading mark
indicates the kind of fault:
P Interruption of the start-up
sequence,
because the OPEN
signal has not been supplied to
terminal 8 from damper motor
to switch «max.». Terminals 6,
7and 14 are under tension until
the fault has been remedied.
1 the fault has been remedied.
Lockout
because no lame
signal has been received on
completion of the 1st safety
time.
Any lame signal failure after
completion of the irst safety
time also causes the control
to go to lockout!
◄
No start, because, e.g., the
CLOSE signal has not been
supplied to terminal 8 or a
contact has not been closed
between terminals 12 and 4
or 4 and 5.
▀
Lockout due to a fault in the
lame supervision circuit.
2 Lockout,
because no lame
signal has been received on
completion of the 2nd safety
time (lame signal of the main
lame with interrupted pilot
burners).
▲
Interruption of the start-up
sequence,
because the OPEN
signal has not been supplied to
terminal 8 from damper motor
to switch «max.». Terminals 6,
7and 14 are under tension until
the fault has been remedied.
▼
Interruption of the start-up
sequence,
because the posi-
tion signal for the low-lame
position has not been supplied
to terminal 8 by the damper
motor. Terminals 6, 7 and 14
are under tension until
▌
Lockout,
because the lame
signal has been lost during
burner operation or air pressure
failure has occured.
◄
Lockout on completion
of control programme se-
quence
due to extraneous light
(e.g. lame not extinguished,
leaking fuel valves) or due to
a faulty lame signal
Control programme under fault conditions and lockout indication
gas burner control: LFL1....