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Siemens
Building Technologies
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
1.4
1.5
Glossary ....................................................................................................6
2.
Summary ..................................................................................................7
2.1
Types.........................................................................................................7
2.2
Ordering ....................................................................................................7
2.3
Functions...................................................................................................7
2.4
2.5
2.6
Accessories ...............................................................................................9
3.
Functions ...............................................................................................10
3.1
Temperature control ................................................................................10
3.2
Operating modes.....................................................................................11
3.2.1
3.3
3.3.1
Description ..............................................................................................13
3.3.2
3.4
3.5
Additional functions .................................................................................18
3.6
Control sequences ..................................................................................21
3.6.1
3.6.2
2-pipe fan coil unit ...................................................................................22
3.6.3
3.6.4
4-pipe fan coil unit ...................................................................................25
3.6.5
3.6.6
3.6.7
3.7
Control outputs ........................................................................................30
3.7.1
Overview .................................................................................................30
3.7.2
commissioning tool) ................................................................................31
3.8
Fan control ..............................................................................................32
3.9
3.10
Handling faults.........................................................................................36
3.11
Modbus RTU mode .................................................................................37
3.11.1
3.12
3.12.1
Overview .................................................................................................38
3.12.2
RDF302 Basic documentation
Contents
CE1P3079en
07 Dec 20111