26
Bentone B55/B65 RME
General
8.3
Technical data LMO24.255...
1.
Switch on operating switch and twin
thermostat
The burner motor starts, an ignition spark is
formed, the prepurge goes on till the prepurge
period expires and the solenoid valve 1 opens (2).
2.
Solenoid valve 1 opens
Oil mist is formed and ignited. The photocell
indicates a lame.
3.
The safety time expires
a.
If no lame is established before this time limit the
control cuts out.
b.
If for some reasons the lame disappears after
this time limit, the burner will make an attempt to
re-start.
4.
Full load thermostat ON
The burner is in operating position and can now
change between high and low capacity.
4-5.
Operating position
If the burner operation is interrupted by means
of the main switch or the thermostat, a new start
takes place when the conditions in accordance
with point 1 are fulilled.
The oil burner control cuts out
A red lamp in the control is lit. Press the reset button
and the burner re-starts.
8.4
Function LMO24.255...
LMO24
Pre-ignition period:
25 s
Pre-ventilation period:
26 s
Post-ignition period:
5 s
Safety period:
< 5 s
Re-connection after release:
< 1 s
Reaction time lame extinction:
< 1 s
Ambient temperature:
-5 - +60°C
Min. current with lame:
45 µA
Max current when dark, start:
5,5 µ A
Control of photo current
Current through photo unit is measured with a d.c. ammeter (a movingc oil instrument
connected in series with the photo unit).
