Choice of installation
Schematic circuit diagrams hydraulic system
33
Terminal assignment
Sensors
VII (1+2):
eBUS (to heat generators/FA)
I
(2+3+ ): optional FBR2 (FBR1) for heating circuit 1
I
(2+ ):
optional 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 = Header sensor
I (9+10):
F9 = Outdoor sensor
V (1+ ):
F11 = Flow sensor heating circuit 1
V (2+ ):
optional F12 = Hot-water tank lower
VIII (1+ ):
optional F13 = Multifunction relay sensor 3
(PT1000; but not for header pump)
VIII (2+ ):
optional F14 = Multifunction relay sensor 4
(PT1000; but not if circulation [time] applies)
III (1-3):
optional FBR2 (FBR1) for heating circuit 2
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 = Additional switching HS
VI (1+2):
A7 = Pump additional switching HS
IV (1):
A8 = Mixer motor heating circuit 1 on
IV (2):
A9 = Mixer motor heating circuit 1 to
IV (3):
A10 = Header pump/Multifunction relay 3
IV (4):
A11 = Circulation pump/
Multifunction relay 4
