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wcon_sensor
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F lo w C o n S e n s o r / S e n s o r H E
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14. Info area
Status display
In the status display, the current system pressure, fl ow rate,
and power as well as the operational status are shown.
1.8 bar
Pressure
500 l/h
Flow rate
18.4 kW
Power
System ok
P
V
78 °C
42 °C
100 %
Loading
In the system display, the fl ow and return temperatures as
well as the pump speed are displayed.
Above the store symbol, the current operational status is
displayed (“Standby”, “Pause”, “Identifi cation”, “Stabilising”,
“Loading”, “
Readiness
”, “Store cooling”, “Overrun”, “Stagna-
tion”, “Inhibition”).
If the operational status is “Standby”, “Pause”, “Identifi ca-
tion”, “Stabilising” or “Overrun”, the remaining runtime of
the corresponding phase is displayed as a countdown.
See below for more information about the different status:
System display
During normal operation, the controller display shows the
info area. The info area consists of a range of displays that
allow a close monitoring of the sensor and system data.
Î
To switch between the different displays of the info
area, press buttons 1 and 2
The status is displayed graphically by means of a smiley. The
different smiley faces have the following meanings:
System ok
everything is alright
Warning
an error has occured, system operation
is not aborted (except for “Leakage”
and “Overpressure”, see chap. 16.2)
Error
an error has occured, system operation
has been aborted
For more information about the possible error and warning
messages see chapter 16 “Messages”.
Operational status
Outside the testing time frame, the controller is in standby
phase. In the system display and the status menu, the remai-
ning time until the next testing time frame is displayed as a
countdown (hh:mm).
Standby
A pause is run whenever
• an identifi cation phase has been unsuccessful
• a stabilising phase has been unsuccessful
• the
D
T does not rise to > 5 K during an overrun phase
• Tstmax is exceeded (resp. Tstsec if “
Readiness
” is active)
• an error-induced inhibition has ended
In the system display and the status menu, the remaining
time of the phase is displayed as a countdown (mm:ss).
Pause
After every pause, an identifi cation phase is run. The pump
is activated at minimum speed in order to identify the coll-
ector temperature. If a suffi ciently high difference between
the collector and the store temperature, the so-called
D
T,
(minimum 5 K) is measured, a stabilising phase follows. If the
D
T measured is not suffi ciently high, a pause is run.
In the system display and the status menu, the remaining
time of the phase is displayed as a countdown (mm:ss).
The duration of the identifi cation phase adjusts itself to the
current fl ow rate. This may lead to sudden changes in the
countdown displayed if the fl ow rate fl uctuates.
Identifi cation
Note:
System pressure is measured at the pump inlet.
Therefore, the values measured at the digital
sensor may differ from those shown on the ma-
nometer when the pump is active.
Note:
In most cases, the pause has a duration of 30
minutes. During summer, the controller may
shorten the pause in order to avoid a collector
stagnation caused by stillstand periods.