Technical data

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
N1
T
YE
B1
T
D3
• 1-stage compressor ON/OFF
(heating and cooling)
1
ON
2 3
3181S35
N1
T
B1
T
D3
Y1 Heating or heating / cooling
valve actuator
B1 Return air temperature sensor or external
room temperature sensor (optional)
Y2 Cooling valve actuator
B2 Changeover sensor (optional)
YE Electric heater
M1 3- or 1-speed fan
Key
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Siemens RDF301, RDF301.50..., RDF600KN CE1N3171en
Building Technologies Semi flush-mount communicating room thermostats 2014-05-23