Siemens RDG100 Basic Documentation page 46

Fan minimum
on- time
Fan kick P60, P61
Note
Fan operation in dead
zone P15
Fan start
Fan overrun for electric
heater
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Siemens
Building Technologies
In automatic mode, a dwelling time of 2 minutes (factory setting) is active. The fan
maintains each speed for at least 2 minutes before it changes to the next speed. This
minimum on-time can be adjusted from 1...6 minutes via parameter P59.
In automatic fan mode and with the room temperature in the dead zone, the control
valve is normally closed and the fan disabled. With the "Fan kick" function, the fan can
be released from time to time at low speed for minimum on-time (see above) even if
the valve is closed.
This function can be used to avoid damage from moisture due to a lack of air circu-
lation, or to allow a return air temperature sensor to acquire the correct room
temperature.
Y
Q1
0
Periodic fan kick
The periodic fan kick time can be selected individually for Comfort mode via parameter
P60, and for Economy mode via parameter P61.
Fan kick value "0" means the fan runs continuously in the dead zone.
Fan kick value "1" and higher: value in minutes
Fan kick value "OFF" means the fan does not run in the dead zone.
Via parameter P15 in "Service Level", the fan speed in the dead zone (in Comfort
mode) can be set according to customer preference.
The following options are available:
Fan does not run in the dead zone (P15=0)
Fan runs at low speed in Heating and Cooling mode (P15=1)
Fan runs at low speed in Cooling mode only (P15=2)
The functions "Fan in dead zone" (P15) and "Fan kick" (P60) are combined as follows:
P60 = 0 Fan runs continuously in the dead zone, P15 has no influence
P60 = OFF Fan operation in dead zone according to P15
When the fan starts from standstill, it starts at speed 3 III for 1 second to ensure safe
fan motor start by overcoming inertia and friction (selected via parameter P58).
Q
1 sec
Q3
Q2
Q1
0
When the electric heater is switched off, the fan overruns for 60 seconds (parameter
P54) to avoid overtemperature of the electric heater or prevent the thermal cutout from
responding.
RDG100.., RDG110.., RDG160T.. Basic Documentation
Functions
Minimum Periodic fan kick
on-time
T
t [h:mm]
Minimum
on-time
CE1P3181en
2015-07-29