System 3000 room temperature controller insert with sensor connection - Switching electric underfloor heating and thermal actuators. - Output signal: pulse width modulation (PWM) or two-point control (on/off). - Input for switching to cooling mode. - Interrupts the heating process after 60 minutes (overheating protection of a heater). - Connection of a remote sensor (accessory) possible. Combination with RF operating top 1-way / 2-way for KNX: - Heating actuator 1-way - Sensor channel 1-way or 2-way. - Local control of the System 3000 insert possible. - Radio control of other devices for KNX as a sensor possible. - Temperature detection. - {b}Function selection of the insert for room temperature controller:{\b} Control of 230 V actuators, heating, cooling mode, heating and cooling mode, switching of heating or cooling mode via communication object or extension input. PWM and 2-point controller, absolute and relative setpoint specification, heat demand control including cascading, valve protection function. Cyclic monitoring of the floor temperature, service mode for valve output, frost protection function (automatic or via communication object), calibration of the temperature sensor, boost function, summer and winter compensation. Extension input is used to switch between heating and cooling mode.