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Siemens RDG100, RDG100T, RDG110, RDG140, RDG160 Basic Documentation CE1P3181en
Building Technologies Functions 28 May 2009
Y
t [h:mm]
Q1
0
10385D22en
Periodic fan kick
Minimum
on-time
Periodic fan kick Minimum
on-time
The periodic fan kick time can be selected individually for Comfort mode via
parameter P60, and for Energy Saving mode via parameter P61.
Note: Fan kick value “0” means the fan runs continuously in the dead zone.
Fan kick value “OFF” means the fan does not run in the dead zone.
When the fan starts from standstill, it starts at speed 3 for 1 second to ensure safe
fan motor start by overcoming inertia and friction (selected via parameter P58).
Q
Q3
Q2
Q1
0
T
1 sec
3181D22
When the electrical heater is switched off, the fan overruns for 60 seconds
(parameter P54) to avoid overtemperature of the electrical heater or prevent the
thermal cutout from responding.
In case of fan failure, the thermostat cannot protect the electrical heater against
overtemperature. That is why the electrical heater must feature a separate safety
device (thermal cutout).
The clean fan filter reminder function counts the fan operating hours and displays
message “FIL”
to remind the user to clean the fan filter as soon as the threshold
is reached. This does not impact the thermostat's operation, which continues to run
normally.
The clean filter reminder is reset when the operating mode is manually set to
Protection and back.
In Auto Timer mode, the default fan mode is automatic. The fan mode can be
changed to manual by pushing the “FAN” button. The fan returns to the automatic
default mode after each switchover from Comfort to Energy Saving mode and vice
versa.
To let the heating / cooling coil reach its temperature, the fan start can be delayed
by a time period set via parameter P67.
Y
0
T
P67
1
3181D23
Q
T
Fan start
Fan overrun for
electrical heater
Fan failure
Clean fan filter
reminder
Fan in Auto Timer
mode
(RDG100T only)
Fan start delay
(2-position control only)
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