Powerline temperature controller with display, white, 55x55mm, for mounting in switch systems. In addition a floating control contact 3A/250V AC for direct connection of heaters and coolers. Standby loss only 0,4 watt. The scope of supply comprises a frame R1E and an intermediate frame ZR65/55 for the E-Design, the temperature controller upper part and a bottom part for attachment in 55mm flush-mounted boxes. The complete display can be removed from the frame for screw mounting. In normal mode the current room temperature is indicated in the display as well as icons for present or absent and for heating on or cooling active. Press the pushbuttons absent and present to activate the associated setpoint. In setup mode as described in the user’s manual, press pushbuttons arrow up and arrow down to display the setpoint and actual temperatures and change the setpoints. Control heating or cooling with Powerline actuators SAM1L, SAM2L or the thermostat outputs. In addition to heating/cooling, a PWM mode for underfloor heating can be set. All settings can also be made via SIENNA Professional.