No, the DuoFern Room Thermostat 9485 can be used completely independently. You have the possibility to set 4 different setpoints with up to 6 time points per day on the device. If you want to set the time points via the HomePilot, the room thermostat must be switched to 1 (receiver) under menu item 9-9-2. This ensures that no more time settings can be made in menu item 2.