[. . . ] Press and hold the MODE button for 10 seconds to enter configuration mode. [. . . ] to change the current selection , press the + button then press the MODE button to confirm and exit the configuration mode. You can unlock the keypad by entering the configuration mode again (pressing the MODE button for 10 seconds). Radio range 100 to 300 meters outside depending on the associated equipment (the range can be altered depending on the installation conditions and the electromagnetic environment) Product compliant with directive R&TTE 1999/5/CE Follow the steps below to associate the thermostat with a receiver: - on the receiver, press the configuration button until the LED flashes (see the receiver guide), - on the thermostat in shutdown mode, press the + button for 3 seconds. The thermostat displays CnF (1) - briefly press the + button again, - check that the LED is no longer flashing on the receiver. The MODE button is used to select the different operating modes of the thermostat ((2)Winter mode , (3) Summer mode , (4) Shutdown ). During the winter or summer modes, the thermostat displays the current set-point temperature (to change the display, see § 4. [. . . ] Never leave used batteries in the unit (the warranty does not cover damage due to faulty batteries). [. . . ]