CM2N3875en_042013-06-16 Building Technologiess 3 875RXBRoom controller RXB39.1Communicating room controllerfor fan-coil applications FC-13The RXB39.1 room controller is used for temperature control in individualrooms. For 2-pipe or 4-pipe fan-coil systems, with or without change-over ECM fan support PI control KNX bus communication Integration into the Desigo building automation and control system viaPX KNX DC 0…10 V control of valve actuators, fan, and electric heating coil Volt-free relay contacts for release of the fan and the electric heating coil Commissioning with ETS Professional, "HandyTool" or Synco ACS AC 230 V operating voltage Pluggable screw terminals