ST1: O
2
sensor (O
2
-Sonde) LSM 11
ST2: Flue gas sensor (AGF1500) Pt100
ST3: Boiler- and STB-temp.-sensor Pt2000 – (KF+STB-F) (Double element sensor 2xPt2000)
ST4: Outside sensor (AF) and DCF77-Receiver or Outside sensor
ST5: Boiler return sensor (F3) Pt2000
ST8: Acc. sensor F4 and Fuel consumption calculation (BSB) F5-1 to F5-4 (5xPt2000 standard)
ST9: Water shortage fuse (WMS)
ST10: Current supply for one module
ST11: Door release 12V~ 16VA
ST12: Primary air actuator (V1)
ST13: Secondary air actuator (V2)
ST14: WAE1 Optional output/ input 1 / ignition monitoring system
ST15: Load pump (Ladepumpe) M1
ST16: Flue gas fan (Ventilator) 1-, 2-level or speed-controlled
ST21: Capacitor (C1) for speed reduction of the flue gas fan (cleaning)
ST22: WA3 Optional output 3
ST23: WA4 Optional output 4
ST24: WA5 Optional output 5
ST25: Power supply (230V~)
ST26: Plug 1 for CAN-Bus (RJ12- 6-pin plug)
ST27: Plug 2 for CAN-Bus (RJ12- 6-pin plug)
KL1: Screw terminal for CAN-Bus
KL2: Screw terminal L (Phase fused by Si1 (6.3A))
KL3: Screw terminal PE (ground wire)
KL4: Screw terminal N (neutral wire)
Si1: Fine wire fuse 6.3A M (medium time lag 5 x 20mm)
C1: Capacitor for speed reduction of the flue gas fan (cleaning)
ST28 / ST29 / ST30 / ST31 / ST32: Plug of the cable harness to Lambda-Control 1
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