Siemens RXB Room Controller for FCU Applications


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The RXB21.1 and RXB22.1 room controllers are used for temperature control in individual rooms.
For 2-pipe or 4-pipe fan-coil systems, with or without change-over

  • PI control
  • Konnex bus communication (S-mode and LTE mode)
  • Integration into the DESIGO building automation and control system via PX KNX
  • Integration into Synco
  • Control of AC 24 V PDM 1) thermic valve actuators, 3-position AC 24 V motorized valve and damper actuators, or electric heating coils
  • Use of motorized KNX / EIB bus valves
  • Volt-free relay contacts for control of fans and electric heating coils
  • Commissioning with ETS Professional, Synco ACS or "HandyTool"
  • AC 230 V operating voltage
  • Plug-in screw terminals


Brand Siemens
Shipping Weight 0.6700kg
Shipping Width 0.113m
Shipping Height 0.062m
Shipping Length 0.167m
Shipping Cubic 0.001170000m3
Unit Of Measure ea

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