Siemens DF301 Basic Documentation page 50

Note:
Fan start
Fan overrun for electric
heater
Fan failure
Clean fan filter
reminder
Fault information
Fan in Auto Timer
mode
Fan start delay
(RDF600KN...)
Note:
50 / 92
Siemens...........................RDF301, RDF301.50..., RDF600KN, RDF600KN/VB, RDF600KN/S
Smart Infrastructure
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.
P15 is not implemented into RDF600KN, RDF600KN/VB SW version < V1.8.
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
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.
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).
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 function is set via parameter P62 (default = OFF (0)).
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 pressing the FAN button. The fan returns to the automatic
default mode after each switchover from Comfort to Economy 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
1
0
Q
P67
This function (via parameter P67) is not implemented into RDF600KN,
RDF600KN/VB SW version < V1.8.
T
T
T
Basic Documentation CE1P3171en
2020-02-21