Siemens RDF400 Series

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Siemens RDF300…/RDF340 / RDF400… / RDF600... Flush-mounted Room thermostats CE1N3076en
Building Technologies 2018-12-27
Applications for heat pump systems
Application and output signal, DIP switches, diagram
· 1-stage compressor ON/OFF
(heating or cooling)
ON
1 2
RDF300...
RDF400...
RDF600...
· 1-stage compressor ON/OFF
(heating or cooling)
with electrical heater
ON
1 2
RDF300...
RDF400...
RDF600...
3181S31
N1
T
B1
T
D3
3
1
8
1
S
3
2
N1T
E1
B1
T
D3
· 1-stage compressor ON/OFF
(heating and cooling)
ON
1 2
RDF300...
RDF400...
RDF600...
3181S35
N1
T
B1
T
D3
N1 Thermostat
Terminal Y10/Y11: Heating (H&C) or Heating/Cooling
Terminal Y20/Y21: Cooling (H&C)
B1 Return air temperature sensor or external room
temperature sensor (optional)
E1 Electrical heater D3 Dewpoint sensor