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

ACS provides standard plant diagrams for RDF KNX thermostats, which depend
on the configuration as follows:
• Plant type
Application
Configuration
Application
Configuration
2-pipe
2-pipe fan coil unit
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
Radiator
– Control sequence: Heating only (P01 = 0)
– Fan operation: Disabled (P52 = 0)
Chilled / heated ceiling
– Control sequence: Changeover (P01 = 2,3)
– Fan operation: Disabled (P52 = 0)
Chilled ceiling
– Control sequence: Cooling only (P01 = 1)
– Fan operation: Disabled (P52 = 0)
2-pipe and
electric
heater
2-pipe fan coil unit with electric heater
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
Single stage with electric heater
– Control sequence: No impact (P01 =any)
– Fan operation: Disabled (P52 = 0)
4-pipe
4-pipe fan coil unit
– Control sequence: Not auto c/o (P01 <> 3)
– Fan operation: Not disabled (P52 <> 0)
Chilled ceiling with radiator
– Control sequence: No impact (P01 =any)
– Fan operation: Disabled (P52 = 0)
Fan coil unit main / secondary
– Control sequence: Auto c/o (P01 = 3)
– Fan operation: Not disabled (P52 <> 0)
Main / secondary
– Control sequence: Auto c/o (P01 = 3)
– Fan operation: Disabled (P52 = 0)
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Siemens RDF301, RDF301.50..., RDF600KN Basic documentation CE1P3171en
Building Technologies Supported KNX tools 2014-05-23










