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Siemens
RXB application library (KNX)
CM110671en_02
Building Technologies
CLC & RAD – chilled ceiling and radiator applications from CC-02
14.03.2008
RAD01 – LTHW radiator
Y1
G
Y2
YH.2
3)
M
KNX
1
2
4
5
6
7
8
9
10 11 12 13 14 15 16
17 18
M
D1
GN
D
D2
Y1
G
Y2
CP–
CP+
B1
Y3
G
Y4
CE–
CE+
N1
M
B
B2
T
D1
2)
D2
2)
2
1
4
3
QAX...
R1
CE–
CE+
YH.1
3)
N.
C.
3
19
21
RXB24.1
N
L
N
10
6
7
1A
0
1
N
L
AC 230 V
19
21
L
T
B1
YH.1
3)
YH.3
M
Radiator
Y1
Y2
Y3 Y4
Thermal YH
YH
--
--
Motorized YH
YH
--
--
Bus --
--
--
--
Ref.
Description
N1
Room controller.
R1
Room unit
B1
Outside air temperature sensor via KNX bus.
B2
Room temperature sensor.
D1
Window contact
2)
.
D2
Presence detector
2)
.
YH.1
Heating valve: Thermal actuator, 2-position (PDM) control
3)
.
YH.2
Heating valve: Motorized actuator, 3-position control
3)
.
YH.3
Heating valve with bus actuator.
2) Type of operation and allocation to inputs D1 and D2 can be selected.
Identical devices must not be connected to both inputs.
3) The thermal valves operate with the same sequence but are driven alternately. Observe the max.
simultaneous load on outputs Y1 ... Y4: Max. 9.5 VA each (see data sheet 3874).
A current list of compatible devices is available in the DESIGO RX hardware overview
(N3804).
Connection diagram
Connection variants for
valve actuators
List of equipment
Note
