N1 Room thermostat
RDF301... , RDF600KN
M1 1- or 3-speed fan
Y1 Valve actuator, 2- or 3-position
Y1, Y2 Valve actuator, 2-position
E1 Electric heater
C1, C2 1-stage compressor
F External circuit breaker
S1, S2 Switch (keycard, window contact,
presence detector, etc.)
B1, B2 Temperature sensor (return air
temperature, external room
temperature, changeover sensor, etc.)
CE+ KNX data +
CE- KNX data –
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Siemens RDF301, RDF301.50..., RDF600KN CE1N3171en
Building Technologies Semi flush-mount communicating room thermostats 2014-05-23