Technische Alternative - Varmt vand fra solen

Status display Stat
The status display provides information in special system situations and problems. It is
mostly intended for use with solar thermal systems, but can also be useful with other diagrams.
The status display can then only operate if an active function check is set off via defective
sensors S1 or S2. For solar applications, a distinction has to be made between three
status areas:
� Function check and collector excess temperature are not active = no system response is
analysed. Only a bar appears in the display in Stat.
� Collector excess temperature is active = the excess temperature that occurs during system
standstill only leads to the display CETOFF (the collector’s excess-temperature cutoff
is active) during this time under Stat.
� Function check is active = monitoring of interruption (IR) and short circuit (SC) of the solar
sensors and circulation problems. If this outlet is active and the differential temperature between
collector S1 and tank S2 is greater than 60K for more than 30 minutes, the error
message CIRERR (circulation error) is output. This status (Stat blinks) is maintained even
after the error has been remedied and has to be cleared in the status menu using the
command CLEAR.
In Stat, OK is displayed when the monitoring function is activated and the system’s operation
is correct. If there is anything unusual, Stat blinks regardless of the display position.
Function check disabled
Function check
disabled
Collector - excess
temperature - cutoff
is active
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