User Manual

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Siemens Non-communicating room controllers CA2N3882en_01
Building Technologies RXA29.1 2012-08-28
Connection diagrams
1
2
4
5
6
11
12
13
15
M
D1
GND
D2
B1
Y3
G
Y4
19
21
N
L
N
N
L
AC 230 V
Y1
Y2
D1
D2
T
B1
GL
Y3.1
M
GL
Y1.1
M
N1
00603 b
Y3.2
3
B2
B2
T
8
9
10
Y1
G
Y2
D3
7
D3
B2.1
14
M/S
–
RXA
N2...N4
B1.1
14
15
M
21
L
19
M/S+
N1 RXA29.1
N2...N4 Max. 3 slave controllers
B1, B2 LG-Ni 1000 temperature sensor
B1.1, B2.1 Setpoint adjuster
D1, D2 Volt-free contacts (window contact, occupancy sensor, central time switch etc.)
D3 Changeover signal
Y1, Y2 AC 24 V thermic valve actuators
Y1.1, Y3.1 Valve actuator, AC 24 V, 3-position (RXA21.1 only)
Y3.2 Damper actuator with spring return
Twisted pair
For information on the compatibility of the various field devices with the RXA29.1 room
controller, refer to the relevant application description.
Connecting the field
devices, room units and
supply voltage
Note