Siemens Synco 200 Basic Documentation page 56

Errors in operation
Switching on / off
Switch positions
4 priorities for pump
operation
56 / 174
Siemens
Building Technologies
8.1.3 Troubleshooting
If the outside temperature signal is not available, and the value for "On according
to outside temperature" is not set to –50 °C, the pump remains permanently on.
8.1.4 Function check / wiring test
During the wiring test, the pumps can be directly switched via the control switch.
The switch has the following positions:
Off
•
On
•
8.1.5 Priorities
The following priorities apply to pump operation:
1 ON / OFF during the wiring test
2 ON due to frost protection function (pump on heat sequence)
3 ON due to "ON according to outside temperature"
4 ON due to pump kick
5 ON depending on demand (refer to sequence controller; subsection 9.5.6
"Pump outputs")
Universal Controllers RLU2...
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CE1P3101en
29.08.2008