Commissioning Instructions
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Siemens Synco™ living CE1C2740en
Building Technologies System limits 13.12.2010
System limits
System limitations (TP1 bus)
126 Central apartment units
Limitations per central apartment unit
1 Meteo sensor
12 Rooms
2 Door contacts (supervised, QAX913 only)
4 Light actuators with status indication (only on KNX TP1
(S-mode) QAX913 only)
3 RF repeater
5 Handheld control (QAX913 only)
4 Heat meter (heat, cooling energy or combined)
4 Hot water meter
4 Cold water meter
3 Electricity meter
3 Gas meter
2 Other meters (e.g. oil, steam)
94 RF devices (total number, including the central apartment unit)
In addition to the above mentioned devices, switch, dim and blind ac-
tuators can be used in unlimited numbers.
Limitations per room
1 Room unit
2 Room temp sensor
1 Heating circuit controller
6 Radiator control actuators (one lead controller, 0…5 lag controllers) or
heating circuit controller channels
6 Window contacts
1 Smoke detector (QAX913 only)
Radiator control actuators and heating circuit controllers cannot simul-
taneously be used in the same room.