Technical data
Table Of Contents
- 1. About this document
- 2. Summary
- 3. Functions
- 3.1 Temperature control
- 3.2 Operating modes
- 3.3 Room temperature setpoints
- 3.4 Applications overview
- 3.5 Additional functions
- 3.6 Control sequences
- 3.7 Control outputs
- 3.8 Fan control
- 3.9 Multifunctional input, digital input
- 3.10 Handling faults
- 3.11 KNX communications
- 3.11.1 S-mode
- 3.11.2 LTE mode
- 3.11.3 Zone addressing in LTE mode (in conjunction with Synco)
- 3.11.4 Example of heating and cooling demand zone
- 3.11.5 Send heartbeat and receive timeout
- 3.11.6 Startup
- 3.11.7 Heating and cooling demand
- 3.11.8 Fault function on KNX
- 3.11.9 KNX switching groups (RDF301.50, RDF301.50H only)
- 3.12 Communication objects (S-mode)
- 3.13 Communication objects (LTE-mode)
- 3.14 Control parameters
- 4. Handling
- 5. Supported KNX tools
- 6. Connection
- 7. Mechanical design
- 8. Technical data
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.
P15 is not implemented into RDF600KN 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
Q3
Q2
Q1
0
T
1 sec
3181D22
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.
Fan operation in dead
zone P15, Comfort
mode (RDF600KN)
Note:
Fan start
Fan overrun for electric
heater
Fan failure
Clean fan filter
reminder
KNX
R
Fault information
Fan in Auto Timer
mode
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Siemens RDF301, RDF301.50..., RDF600KN Basic documentation CE1P3171en
Building Technologies Functions 2014-05-23