Siemens RDB160BN Basic Documentation page 23

A6V11917618_en--_b
NOTICE
Fan operation in the dead zone (fan kick) must be changed to disable the fan
operation.
For detailed information about chilled / heated ceilings refer to chapter 'Chilled
ceiling with radiator [➙ 18]'.
Fan operation in dead zone (fan kick)
In automatic fan mode and a room temperature within the dead zone, the
control valve is normally closed, and the fan is at minimum speed.
The fan can be switched off when the room temperature is within the dead
zone via parameter P31. The factory setting for P31 is 1 (Lower speed).
Fan overrun for electric heater
When the electric heater is switched off, the fan overruns for 120 seconds
(fixed value) to avoid overtemperature of the electric heater or to prevent the
thermal cutout from responding.
CAUTION
Fan failure
In case of fan failure, the thermostat cannot protect the electric heater against
overtemperature. For this reason, the electric heater must feature a separate
safety device (thermal cutout).
Control outputs 5
Fan operation
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