Siemens Desigo RXB Technical Manual page 229

Connection diagram
Connection variants for
valve actuators
List of equipment
Note
Siemens
Building Technologies
D3 2)
2)
B1 D1 D2 2)
T
1 2 3 4 5 6 7
19 19 21 21
AC 230 V
N
L
Radiator (YH) – Chilled ceiling (YC)
Thermal
Motorized
Bus
Ref. Description
N1
Room controller.
R1
Room unit
B1
Room temperature sensor.
D1
Window contact
D2
Presence detector
D3
Dewpoint sensor
YC.1
Cooling valve: Thermal actuator, 2-position (PDM) control
YC.2
Cooling valve: Motorized actuator, 3-position control
YC.2
Cooling valve: Motorized actuator, 3-position control
2) Type of operation and allocation to inputs D1 and D2 can be selected.
Identical devices must not be connected to both inputs.
3) Same sequence for both valves but valves driven alternately
Observe the max. simultaneous load on outputs Y1 ... Y4: Max. 9.5 VA each (see data sheet N3874).
A current list of compatible devices is available in the DESIGO RX hardware overview
(N3804).
RXB application library (KNX)
CLC & RAD – chilled ceiling and radiator applications from CC-02
CLC01 – Chilled ceiling
YC.2 3) YC.3
M
3) 3)
YC.1 YC.1 R1
QAX...
8 9 10 11 12 13 14 15 16
2)
.
2)
.
2)
.
M
KNX
N1
17 18
RXB24.1
Y1 Y2 Y3
-- -- YC
-- -- YC
-- -- --
3)
.
3)
.
3)
.
CM110671en_02
Y4
YC
YC
--
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14.03.2008