Siemens RDF302 User Manual

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Siemens RDF302 Basic documentation CE1P3079en
Smart Infrastructure 2022-06-17
3.4.3 Applications for heat pump systems
*)
Application and output signal, DIP switches, diagram
• 1-stage compressor ON / OFF
(heating or cooling)
1
ON
2 3
• 1-stage compressor with electric
heater
(heating or cooling) ON / OFF
1
ON
2 3
3181S31
N1
T
B1
T
D3
3181S32
N1T
E1
B1
T
D3
• 1-stage compressor ON / OFF
(heating and cooling)
1
ON
2 3
3181S35
N1
T
B1
T
D3
N1 Thermostat
Terminal Y11: Heating or heating / cooling
Terminal Y21: for cooling (H &C)
B1 Return air temperature sensor or external room
temperature sensor (optional)
E1 Electric heater
D3 Dewpoint sensor
*)
RDF302.B does not have inputs X1 and X2, so sensor B1 and B2 are not
included in RDF302.B application.

Siemens RDF302 Specifications

General

Brand	Siemens
Model	RDF302
Category	Thermostat
Language	English