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.
Errors in operation
8.1.4 Function check / wiring test
During the wiring test, the pumps can be directly switched via the control switch.
Switching on / off
The switch has the following positions:
Switch positions
• Off
• On
8.1.5 Priorities
The following priorities apply to pump operation:
4 priorities for 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”)
56 / 174
Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Aggregates 29.08.2008
To Next Page
Loading...
