Basic Documentation

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Siemens RDU341 Basic Documentation CE1P3172en
Building Technologies 2017-02-17
6. Connection
6.1 Connection terminals
G X1M
G0
Y10 G0
SELV
X2
3172A21
CE+ CE
-
L Y21
G, G0 Operating voltage SELV AC 24 V
L Supply for electric heater AC 230 V
Y10, G0 Output for damper, VAV compact controller
Y21 Output for electric heater
X1, X2 Multifunctional input for temperature sensor
(e.g. QAH11.1) or potential-free switch
Factory setting:
– X1 = Operating mode switchover contact
– X2 = External sensor
(function can be selected via parameter P38 / P40).
M Measuring neutral for sensor and switch
CE+ KNX data +
CE- KNX data -
6.2 Connection diagrams
10 A
10 A
N1 Room thermostat RDU341
Y1 Damper actuator, VAV compact controller
E1 Electric heater
S1, S2 Switch (keycard, window contact, etc.)
B1, B2 Temperature sensor (return air
temperature, external room temperature,
changeover sensor, etc.)
CE+ KNX data +
CE- KNX data -
For US installations, use Class 2 rated power supplies.
For other installations, use circuit breakers with rated current of no more than 10 A.