Siemens RDF302 Documentation

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Siemens RDF302 Basic documentation CE1P3079en
Building Technologies Contents 07 Dec 20111
Contents
1.
About this document ..............................................................................4
1.1 Revision history.........................................................................................4
1.2 Reference documents ...............................................................................4
1.3 Before you start.........................................................................................5
1.3.1 Copyright...................................................................................................5
1.3.2 Quality assurance .....................................................................................5
1.3.3 Document use / request to the reader ......................................................5
1.4 Target audience, prerequisites..................................................................6
1.5 Glossary ....................................................................................................6
2. Summary..................................................................................................7
2.1 Types.........................................................................................................7
2.2 Ordering ....................................................................................................7
2.3 Functions...................................................................................................7
2.4 Integration via Modbus..............................................................................8
2.5 Equipment combinations...........................................................................9
2.6 Accessories ...............................................................................................9
3. Functions ...............................................................................................10
3.1 Temperature control ................................................................................10
3.2 Operating modes.....................................................................................11
3.2.1 Different ways to influence the operating mode......................................12
3.3 Room temperature setpoint.....................................................................13
3.3.1 Description ..............................................................................................13
3.3.2 Setting and adjusting setpoints ...............................................................14
3.4 Applications overview..............................................................................16
3.5 Additional functions .................................................................................18
3.6 Control sequences ..................................................................................21
3.6.1 Sequences overview (setting via parameter P01) ..................................21
3.6.2 2-pipe fan coil unit ...................................................................................22
3.6.3 2-pipe fan coil unit with electric heater....................................................23
3.6.4 4-pipe fan coil unit ...................................................................................25
3.6.5 Chilled / heated ceiling and radiator applications ...................................27
3.6.6 Compressor applications.........................................................................27
3.6.7 Setpoints and sequences........................................................................28
3.7 Control outputs........................................................................................30
3.7.1 Overview .................................................................................................30
3.7.2 Control outputs configuration (setting via DIP switches or Modbus
commissioning tool) ................................................................................31
3.8 Fan control ..............................................................................................32
3.9 Multifunctional input, digital input ............................................................35
3.10 Handling faults.........................................................................................36
3.11 Modbus RTU mode .................................................................................37
3.11.1 Fault function on Modbus........................................................................37
3.12 Communication objects...........................................................................38
3.12.1 Overview .................................................................................................38
3.12.2 Description of communication objects ....................................................39

Siemens RDF302 Specifications

General

Brand	Siemens
Model	RDF302
Category	Thermostat
Language	English