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Siemens
User Manual
CE1U2357en
Building Technologies
7 Plant diagrams
2014-07-30
Diagram
Function
Connection
B1
Flow temperature sensor HC1
B1
B12
Flow temperature sensor HC2
B12
B2
Boiler temperature sensor TK1
B2
B3
DHW sensor top
B3
B31
2. DHW sensor bottom
BX1, BX2
B6
Collector sensor
BX1, BX2
B7
Return sensor
BX1, BX2
B9
Outside sensor
B9
RG1
Room unit 1
CL-, CL+
RG2
Room unit 2
CL-, CL+
Low-voltage