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Siemens
RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation
CE1P3076.en
Smart Infrastructure
2020-02-21
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...
3
1
8
1
S31
N1
T
B1
T
D3
3
1
8
1
S
3
2
N1
T
E1
B1
T
D3
·
1-stage compressor
ON/OFF
(heating
and
cooling)
ON
1 2
RDF300...
RDF400...
RDF600...
3
1
8
1
S35
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
Note: The diagrams above show only the water based fan coil application, but not compressor!
Use with one or two valves for heating and cooling, heating/cooling with
changeover, heating only, or cooling only.
Water-based fan coil
application