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A1 Ignition transformer S2 Flow controller
B1 Thermostat S3 Pump press switch (ND)
F1 Excess current actuator S4 Float switch (fuel)
K3 Motor contactor S5 Hose press switch (HD)
M1 3-phase AC motor, HP pump S10 Thermosensor
M2 Burner motor X1 5-pole socket panel
Q1 Master switch X2 6-pol socket panel
Q2 Heating switch Y1 Fuel valve
Glow
lamp
Anti-
interference
device
Inlet line via
CEE 5x 16 A
380 V 50 Hz +MP
Thermostat
B1
Measuring
sensor
Control plate
Q2
Switch for
activating
burner
3x 400V / 50Hz
Circuit diagramme
Flame Monitor
Sensor
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