Bentone BF1 Series - Component List for Controls; Functionality of Burner Controls

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Bentone BF1
General
7.1.1 Component list
A1 Oil burner control S4 Temperature limiter
E1 Preheater S6 Control thermostat high/low
F1 Fuse, max 10 A S7 Main switch
H1 Alarm lamp T1 Ignition transformer
M1 Burner motor Y1 Solenoid valve 1
M2 Damper motor STM6SF-L Y2 Solenoid valve 2
P1 Timer meter, low capacity
(Accessory)
X3 Plug-in contact, burner
P2 Timer meter, high capacity
(Accessory)
X4 Plug-in contact, boiler
R1 Photocell QRB X5 Plug-in contact
high/low capacity burner
U2 UV-cell QRC X6 Plug-in contact
high/low capacity bolier
S3 Operations thermostat
Preheater wiring colours: A Blue B Brown C Black
The installation must be connected to the mains and fused according to local
regulations.
7.1.2 Function LMO24../LMO44.../LOA24..
1a. Operations switch ON, thermostat ON
The burner motor starts, ignition sparks initiated and pre-ventilation
continues until the set pre-ventilation period is over and the
solenoid valve (2) opens..
1b. Operations switch ON, thermostat ON
The preheater is energized and the pre-heating period begins.
This continues until the operating temperature is reached and
the preheater thermostat closes. The burner motor starts,
ignition sparks initiated and pre-ventilation continues until the set
pre-ventilation period is over and the solenoid valve (2) opens.
2. Solenoid valve 1 opens
The oil mist is formed and ignited. The photocell indicates ame.
The ignition spark ceases after ame indication.
(See Technical data oil burner control)
3.
a
b
Safety period runs out
If the ame is not present before the end of this period, the oil
burner control blocks further operation.
If the ame for any reason disappears after this time period, the
burner will make a new start attempt.
4. High/Low thermostat ON
The burner is in operating position and can now change between
full load and low load.
4-5 During operation
If burner operations are interrupted via the main switch or
thermostat, a new start will be initiated when conditions
according to point 1 are fullled.
Oil burner control blocks
Red light on the oil burner control illuminates. The burner is re-
started by pressing the reset button.