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

2. Summary
2.1 Types
Product no. Stock no.
Operating
voltage
Control outputs
Suitable
conduit
box
2)
3-
pos
ON/
OFF
DC
0..10 V
KNX switching
groups
RDF301
S55770-T104
AC 230 V
1
1)
2
1)
--
rectangular
RDF301.50
S55770-T105
AC 230 V
1
1)
2
1)
--
rectangular
RDF301.50H
S55770-T334
AC 230 V
1
1)
2
1)
--
Hotel: MUR, DND
3)
rectangular
RDF600KN S55770-T293 AC 230 V
1
1)
2
1)
--
round &
rectangular
1) Selectable: ON/OFF or 3-position.
2) Rectangular conduit box e.g. ARG71.
Round CEE/VDE conduit box min 60 mm diameter and min 40 mm depth.
3) MUR: Make Up Room, DND: Do Not Disturb.
2.2 Ordering
• When ordering, please indicate both product no. / stock no. and name:
E.g. RDF301 / S55770-T104 room thermostat.
• Order valve actuators separately.
2.3 Functions
Fan coil units via ON/OFF or modulating control outputs:
• 2-pipe system
• 2-pipe system with electric heater
• 4-pipe system
Chilled / heated ceilings (or radiators) via ON/OFF or modulating control
outputs:
• Chilled / heated ceiling
• Chilled / heated ceiling with electric heater
• Chilled / heated ceiling and radiator / floor heating
Compressors: Via ON/OFF control
• 1-stage compressors in DX type equipment
• 1-stage compressors in DX type equipment with electric heater
The room thermostats are delivered with a fixed set of applications.
The relevant application is selected and activated during commissioning using
one of the following tools:
• Synco ACS
• ETS
• Local DIP switch and HMI
Use
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Siemens RDF301, RDF301.50..., RDF600KN Basic documentation CE1P3171en
Building Technologies Summary 2014-05-23










