Siemens Desigo RXB Technical Manual page 352

Function
Notes
116/166
Siemens
Building Technologies
The fan can be enabled at the lowest speed at regular intervals. While the room
temperature remains between the effective setpoints SpH and SpC, fan speed 1 is
always on for the predefined minimum runtime after expiry of the duty cycle.
Y
Q14
0
Periodic fan kick
Parameter
Periodic fan kick
Comfort
Periodic fan kick
Economy
1) HandyTool and ACS: 90 min / 360 min = OFF
• If the Periodic fan kick is set to 0, then fan speed 1 remains on continuously between
the effective setpoints SpH and SpC.
• With a setting of 90 min. (or 360 min), the display changes to "Off".
This indicates that the function is disabled.
• When the measured temperature moves outside the dead band, i.e. above or below
the effective heating/cooling setpoint, the fan switches on before the periodic fan kick
has expired.
• When the room operating mode switches from Economy to Precomfort or between
Precomfort and Comfort , fan speed 1 is enabled for the minimum runtime and the
periodic fan kick starts.
• A QAX34.1 room unit displays the value of B1.
RXB (KNX) application library
Fan control
Minimum on Periodic fan
time
Basic setting
OFF (90 min) 1) 0 ... 89 min ; Aus
OFF (360 min) 1) 0 ... 359 min ; Aus
FNC Description of functions for FC-10, FC-11, FC-12
Minimum on
kick time
Range Resolution
1 min
1 min
CM110385en_05
28 Feb 2009
10385D22en
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