12/14
Siemens
RXC32 – Room controller for VAV systems
CA2N3845en_06
Building Technologies
2013-06-18
Connection diagrams
M
Y3.2
Y2
G
Y1
Y3.1
Y4.1
N1
3845A
03
1
2
G0
G
AC 24 V
G0
G
11
12
13
G
B1
M
T
B1
B
M
14
15
16
D1
GND
D2
D1
D2
17
GND
23
24
CLA
CLB
R1
19
20
21
22
CP–
CP+
CLA
CLB
CP–
CP+
C+
C–
37
38
39
40
Y3
G
Y4
G
Y3
Y4
G
Y2
Y1
Y1
34
35
36
Y1
G
Y2
M
Y3.3
LonWorks® Bus
N1
RXC32
X1
Temperature sensor LG-Ni 1000
D1, D2
Volt-free contacts (window switch, occupancy sensor, etc.)
R1
QAX… room unit
Y1, Y3.2
AC 24 V 3-position damper actuator types GDB13…, GLB13…
Y3, Y4
AC 24 V thermic valve actuators
Y3.1, Y4.1
AC 24 V contactors for electric heating coil
Y3.3
Solid state relays AC24V
•
Do not exceed the maximum simultaneous load on outputs Y1 … Y4 (see
"Engineering”)!
•
A power amplifier may be used to connect additional valve actuators to Y3 and Y4
(see Desigo RXC installation guide, CA110334).
•
For information on actuators compatible with the RXC32 controller, refer to the
relevant application descriptions (see Desigo RXC applications library, CA2A3810)
•
The voltage for devices with an AC 24 V supply (G) can be derived either from the
controller or from an external source (see the Desigo RXC installation guide
CA110334).
If the connected devices receive their supply from the controller the power
consumption of these devices must be taken into account when sizing the
transformer.
Notes