Connection assignment
SDC
30
MU1H-0438GE51 R0313
No. Connection
20
Burner operating hour counter, stage 1
21
N / 230 V
22
L1 / 230 V mains connection
Pos: 6 /1 56-H oney well/M onta ge/ Fue hler -/Dat enb us-Ansc hluss @ 1\ mod_ 120 764 841 972 8_6. doc @ 10 051
No. Connection
23
Common sensor ground
24
Bus side A
25
Bus side B
26
Outside sensor
27
Heat generator sensor/Boiler sensor
28
Hot-water sensor
29
Mixed heating circuit 1 flow sensor
30
Variable input 1
31
Variable input 2
32
Variable input 3, VFB*
33
Mixed heating circuit 2 flow sensor
34
Collector flow sensor (solar application, PT 1000)
35
Collector return sensor
(solar application)
36
Pulse input
37
OpenTherm A
38
OpenTherm B
* with district heating controllers
Pos: 7 /1 56-H oney well/M onta ge/W a ndso ckel_f uer _Heizu ngs- Fe rnh eizun gsanw end ung en @ 1\m od_ 120 7648 426 072 _6.d oc @ 100 83
Sensor / data bus
connection
Summary of Contents for SDC 12-31
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