Component List Lmo24.255; Function Lmo24.255 - Bentone B40 MF Installation And Maintenance Instruction

For installers
8.3

Component list LMO24.255 ...

A1 Burner control
B1 Photoresistor
E1 Preheater
F1 Operating fuse
H1 Lamp, low capacity
H2 Lamp, high capacity
H3 Alarm signal 230 V
H4 indication preheater
K1 Motor contactor with thermal overload protector
K4 Directional relay
M1 Burner motor
M2 Damper Motor
P1 Time meter, total operating time
P2 Time meter, high capacity, total operating time
S1 Operating switch
S2 Operating switch, stage 2
S3 Control thermostat
S4 Temperature limiter
S5 Micro switch for hinged door
Max loading K1
Connection A1,A2 / 95, 96 / 97, 98 Max 0,2A/15W
8.4

Function LMO24.255 ...

1 Operations switch ON, twin thermostat ON
Burner motor starts, ignition spark is formed and preventilation
continues until the preventilation time is over and solenoid valve 1
operates (2).
2 Solenoid valve 1 operates
Oil mist is formed and ignited. Photoresistance indicates flame.
3 Safety time ends
a If the flame goes out before this time limit is passed, the machine
switches to blocking mode.
b If the flame, for whatever reason, disappears after this time limit has
passed, the burner will make a new attempt.
4 High load thermostat ON (B45-2 MF)
The burner is in operating mode and can switch between high and
low load
4-5 Operational status
If burner operation is interrupted by the main switch or thermostat, a
new start will take place once conditions as specified in paragraph 1
are met.
The machine blocks
Red light in the machine is on. The burner is restarted by pressing the reset
button.
48 Bentone B40 MF/B45-2 MF
S6 Control thermostat, stage 2
S7 Main switch
S10 Oil pressure switch, max/lockout funktion
T1 Ignition transformer
Y1 Solenoid valve 1
Y2 Solenoid valve 2
X1 Connection terminal board
X3 Plug-in contact, burner
X4 Plug-in contact, boiler
X5 Plug-in contact, stage 2, burner
X6 Plug-in contact, stage 2, boiler
X29 3-phase supply heater, burner
X30 3-phase supply preheater, boiler
X31 Preheater control, burner
X32 Preheater control, boiler
V1 Element 1
V2 Element 2
V3 Element 3
V4 Element 4