Starting the controller for the first time Temperature setting FrostGuard function After correct installation on batteries, the LCD will display, fora second, all segments (display test) followed by the firmware version number. After awhile, the current temperature in the room will be displayed. The controller is ready to use. To set the desired temperature in normal operating mode: 1. Press the or key. The segment displaying temperature will switch to edit mode and start blinking. 2. With the and keys, set the desired temperature with the accuracy of up to 0.2°C. 3. Press the AURATON 200 TRA controller features the special FrostGuard function to protect the room from possible freezing. The function is activated when the controller is switched off. With the controller switched off, when the room temperature drops to C, the Fr ( ) and flame ( ) symbols will appear and signal will be sent to the receiver to start heating. When the temperature raises to C, the display will turnoff again and signal will be sent to the receiver to turn the heating off.