1 normally open contact, potential-free 10A/250V AC. Standby loss only 0.8 watts. Encrypted radio, bidirectional radio and repeater function can be switched on. For built-in installation. 45mm long, 45mm wide, 33mm deep. If the supply voltage fails, the switching state is retained. When the supply voltage returns, it is switched off in a defined manner. After installation, wait for the automatic short synchronization before connecting the switched consumer to the mains. This heating-cooling relay evaluates the information from radio temperature controllers or sensors. Possibly supplemented by window-door contacts, motion detectors, window handle sensor FFG7B-rw and radio buttons. Encrypted sensors can be taught in from production week 11/14. Bidirectional radio and/or a repeater function can be switched on. Every change in the state of the working contact is confirmed with a radio telegram. This radio telegram can be taught into other actuators and the GFVS software. In particular into an FSR61, in order to switch a heating circulation pump synchronously with the valves. Upper rotary switch for the operating modes. The LED accompanies the learning process in accordance with the operating instructions and indicates radio control commands during operation by flashing briefly.