7.12 Defective sensors
In the event of a defective sensor, the malfunction symbol starts to blink in the display.
Defective or missing sensor:
For three-step control:
The control valve is closed completely and then opened to
1/3 over the control valve transit time.
For on/off control:
The controller controls the on/off output in 30 minute intervals
as long as the minimal activation time lasts (P14).
Missing:
Flow sensor VS:
As described above
Outdoor sensor AS
With fixed set point control, no effect, only display possible
With weather-compensated control, the maximum set point
set for the flow tempeature is controlled.
Return flow sensor RüS:
No limitation of the return flow temperature
Drinking water sensor TS:
No reverse control possible in conjuction with a self-operated
regulator
7.13 Actual values
The actual values can only be displayed when the sensors are connected and the measured
values are within the measuring range.
No symbols that are assigned to the actual values appear in the display.
On the user level, the measured outdoor temperature appears in the display as the last point.
On the installation level, the actual values can be viewed in the following sequence:
t1 Flow temperature
t2 Outdoor temperature
t3 Return flow temperature
t4 Drinking water temperature
30
EB 5432-1 EN
Description of the controller functions
Summary of Contents for TROVIS 5432
Page 37: ...EB 5432 1 EN 37...
