Installation and Operating Instructions
SDC 204 1316BED035-10B-E Date 12/06
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9.2 System monitoring
If an error occurs, the
symbol will always flash.
9.2.1 Sensor monitoring
The sensors required for the control
functions and their connection cables are
monitored for breakage and short circuit. If
a defective sensor is recognised by the
software, the
symbol is displayed.
The source of the error can be found by
scrolling.
Important:
The use of incorrect temperature
sensors can therefore also lead to one of
the error messages.
9.2.2 Flow monitoring
In the case of the controller Solareg Vision
Plus, the temperature difference between
the collector and the storage cylinder is
checked. If this exceeds the amount of (60K
+ Td start), this is interpreted as an error
because such large differences should not
arise given normal system dimensions and
assuming that the pump is switched on.
In the case of the Solareg Vision Plus
control unit, the flow quantity is checked
when the pump is switched on. If, for a
period of approx. 30 minutes, no flow is
detected, this is interpreted as an error.
The error message is automatically reset
once the fault has been removed.
Display
Meaning
Short circuit of temperature sensor for current measuring point
Interruption to temperature sensor of current measuring point,
circulation error if energy yield estimation is activated
Display
Meaning
No circulation in solar circuit
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