52 / 94
Siemens RDF800KN.., RDF800KN/VB, RDD810KN/NF Basic documentation CE1P3174en
Smart Infrastructure 2020-02-21
3.10 Handling faults
When the room temperature is out of the measuring range (that is, above 49 °C or
below 0 °C), the limiting temperature flashes.
In addition, the heating output is activated if the current setpoint is not set to "OFF",
the thermostat is in heating mode and the temperature is below 0 °C.
For all other cases, no output is activated.
The thermostat resumes Comfort mode after the temperature returns to the
measuring range.
If the built-in sensor fails and no external sensor is connected, the thermostat
displays error message Er1. This means that the thermostat must be replaced if
the room temperature is acquired with the built-in sensor.
For error status messages on the bus, see section 3.11.8.
In the event of a power failure, all working conditions (operating mode, setpoint, fan
speed, and all control parameter settings) are stored without time limitation.
When power returns, the thermostat reloads this data and continues to work in the
same conditions as before.
Room temperature out
To Next Page
Loading...
Need help?
General
