Sensor Failure; Temperature Monitoring; Error Status Register - Samson TROVIS 5573 Mounting And Operating Instructions

8.2

Sensor failure

According to the error list, sensor failures are indicated by displaying "Err 1" error message in
the error level. For detailed information, exit error level and view the different temperature val-
ues in the information level: each sensor icon displayed together with 3 horizontal lines instead
of the measured value indicates a defective sensor. The following list explains how the controller
responds to the failure of the different sensors.
4
Outdoor sensor AF1: When the outdoor sensor fails, the controller uses a flow temperature
set point of 50 °C or the Max. flow temperature when the Max. flow temperature (adjusted
under PA1, 2) is lower than 50 °C.
4
Flow sensor(s) in heating circuit(s): When the flow sensors in the heating circuits are defecti-
ve, the associated valve moves to 30 % travel. DHW heating using such a sensor to measure
the charging temperature is suspended.
4
Flow sensors in the DHW circuit with control valve: When the flow sensor VF4 fails, the
controller behaves as if VF4 had not been configured. As soon as the control of the charging
temperature becomes impossible (VF2 defective), the associated valve is closed.
4
Return flow sensors RüF1/2: When the return flow sensor fails, the controller continues
operation without return flow temperature limitation.
4
Room sensors RF1/2: When the room sensor fails, the controller uses the settings for opera-
tion without room sensor. The controller, for example, switches from optimizing mode to re-
duced operation; adaptation mode is canceled. The last determined heating characteristic
remains unchanged.
4
Storage tank sensors SF1/2: When one of the two sensors fails, the storage tank is no lon-
ger charged (exception: solar system).
4
Solar sensors SF3, VF3: When one of the two sensors fails, the storage tank in the solar cir-
cuit is no longer charged.
8.3

Temperature monitoring

When a system deviation greater than 10 °C persists in a control circuit for 30 minutes, an
"Err 6" error message (temperature monitoring alarm) is generated.
Function
Temperature monitoring
8.4

Error status register

The error status register is used to indicate controller or system errors. In modem operation
mode when the controller dials the building control system (GLT) both when an error is detected
and when it has been corrected, each change in the status of the error status register causes the
WE Configuration
0 CO5 -> F19 - 1
Operational faults
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EB 5573 EN