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7.2.3 System protection
To protect system components, the solar circuit pump is switched off if the collector
temperature exceeds the collector protection temperature (see 7.2.2) by 10 K.
If the temperature drops below this temperature, the controller once again resumes
normal operation.
This function is always activated.
8
System monitoring
The occurrence of errors is generally indicated by a flashing
8.1 Sensor monitoring
The connected sensors and sensor cables are monitored for interruptions and
short-circuits. Errors are indicated by the
found by paging up or down in the Info menu.
8.2 Flow monitoring
The controllers are programmed so as to display a message if the flow is inter-
rupted, e.g. via pump fault or vapour in the system. However, this notification does
not switch off the pump.
"Basic Setup" menu
Display
+
symbol. The source of the error can be
Meaning
No circulation in the solar circuit
symbol.
11
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