Operation; Function Check; Error Messages - Solvis ST-Control Manual De Instrucciones

ST-Control - Operation

Operation

• Yellow button ("Anzeige", display): By pressing this but-
ton, the numeric values of the sensors and target values
are
displayed one after the other. A black bar indicates the
designation of each numeric value.
• Blue button ("Ändern", change): Setting the numeric
values (upward counting). If the bar displays "Solar-
pump",

Function check

The ST-Control constantly monitors all sensors and per-
forms a plausibility check of solar usage. If no errors are
displayed, the solar system is correctly functioning.
If one of these displays to the right appears during operati-
on, the installer must be informed. In the case of a sensor
short circuit or interruption, the solar pump is switched off
until the input value is plausible again.

Error messages

If displays such as "Er1", "Er2" or "Er3" appear, an error
is present in the EEPROM. The cause can be an overvolta-
ge, for example. Press the yellow button to reinitialize the
EEPROM. If the error occurs again thereafter, inform
the installer.
N 15-M – Subject to technical changes 06.07
you can switch from automatic mode ("A") to manual
mode ("H").
• LED ("Solarpumpe", solar pump): If the solar pump is
active, this is displayed by the LED next to the display.
The following displays may occur:
• "FF1": Interruption of the collector sensor T K
• "FF2": Interruption of the storage tank sensor T S
• "FF3": Short circuit in the collector sensor T K
• "FF4": Short circuit in the storage tank sensor T S
• "FF5": Extended period of exceeding the operating tem-
perature difference. That means solar heat can
only be poorly utilized. There is probably a mal-
function in the solar circuit (e.g. insufficient flow).
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