Installation Electrical Connection
9
Terminal assignment
Sensors
VII (1+2): eBUS (FA) or 0 - 10 V output
I (1,2,3+ ):F1/F2/F3 = buffer storage tank
low/middle/top
I (2+3+ ): FBR2 (FBR1) for heating circuit 1
I (2+ ): F2 = Room sensor for heating circuit 1
I (4+5): F5 = Flow sensor heating circuit 2
I (6+7): F6 = Storage tank sensor
I (7+8): F8 = Boiler sensor/header sensor
I (9+10): F9 = Outdoor sensor
V (1+ ): F11 = Flow sensor heating circuit 1/
Multifunction relay sensor 1
V (2+ ): F12 = Hot-water tank low/
Multifunction relay sensor 2
VIII (1+ ): F13 = PT1000 => HS2/collector 2/
Multifunction relay sensor 3
VIII (2+ ): F14 = PT1000 => Collector 1/
Multifunction relay sensor 4
III (1-3): FBR2 (FBR1) for heating circuit 2
III (1+2): F15 = 0-10V input/light sensor/
Room sensor for heating circuit 2
III (2+3): F17 = Pulse counter for output
measurement
IX (1+2): Data line CAN bus
IX (3+4): Power supply CAN bus
Mains
II (1): Neutral conductor, mains
II (2): Power supply, unit
II (3): Power supply, relay
II (4): A1 = Pump heating circuit 1
II (5): A1 = Pump heating circuit 2
II (6): A3 = Cylinder charging pump
II (7): A4 = Mixer motor heating circuit 2 on
II (8): A5 = Mixer motor heating circuit 2 to
II (9+10): A6 = Burner stage 1/HS 1
VI (1+2): A7 = Burner stage 2/HS 2/Solid fuel
IV (1): A8 = Mixer motor heating circuit 1 on/
Multifunction relay
1
IV (2): A9 = Mixer motor heating circuit 1 to/
Multifunction relay
2
IV (3): A10 = Collector pump 2/Switching valve to
solar tank 2/Multifunction relay 3
IV (4): A11 = Collector pump 1 (ON / OFF)
multifunction relay
4
EImportant: Bus lines and sensor lines must be laid separately, away from mains cables!
