31
Special functions
Deviations in the temperature values displayed, for example due to cables which are to
long or sensors which are not positioned optimally, can be compensated for manually
here. The settings can be made for each individual sensor (S1 to S4) in steps of 0.5 °C
(temperature) resp. 0.2 % of the measuring range of the VFS sensor per step.
Setting range: -100 to +100 (-50°C to +50°C) / Default setting: 0
Caution
These settings are only necessary in special cases at the time of initial
commissioning and may be one by a specialist only. Incorrect settings
may lead to an error.
Starting the Setup Wizard guides you in the correct order through the basic settings
necessary for commissioning, and provides brief descriptions of each parameter in the
display.
Pressing the “esc” key takes you back to the previous value so you can look at the
selected setting again or adjust it if desired. Pressing the “esc“ more than once takes
you back step by step to the selection mode, thus cancelling the commissioning help.
Caution
May only be started by a specialist during commissioning! Observe the
explanations for the individual parameters in these instructions, and
check if further settings are necessary for your application.
All of the settings that have been made can be reset, thus returning the controller to its
delivery state.
Concentration of antifreeze used in the system, in %.
Setting range: 0 % - 60 % /
Default setting:
40 %
Since for the heat meter the collector and the storage temperature are used, a diffe-
rence to the flow respectively return flow temperature can be compensated by chan-
ging
Δ
T Offset accordingly.
Example:
Displayed collector temp. 40 °C, measured flow temperature 39 °C, displayed storage
temperature 30 °C, measured return temperature 31 °C = results in a correction value of -20 % (displayed
Δ
T 10 K, real
Δ
T 8 K = -20 % correction)
Setting range: -50 % to +50 % /
Default setting:
0 %
6.7.6. – Glycol percentage
6.8. - Sensor calibration
6.9. - Commissioning
6.10. - Factory settings
This determines the fl ow rate in litres per minute that is used for the calcualtion of the heat quantity.
Setting range: 0 l/min. - 100 l/min. /
Default setting:
5 l/min.
6.7.7. - Flow rate
6.7.9. -
Δ
T Offset
