System 3000 Room Temperature Controller BT Stainless Steel System 55 - Operation and programming via mobile device (smartphone or tablet) via Bluetooth with the Gira System 3000 App. - Control via capacitive sensor surface. - Manual and time-controlled regulation of room temperature. Functions on the attachment: - Current time can be saved as a switching time, quick programming. - Automatic summer/winter time changeover, can be disabled. - Timer with three memory areas for each memory area comfort and setback time for Mon-Fri and Sat+Sun. - Setting of comfort, setback, cooling, and frost protection temperatures. - Controller output: Pulse width modulation or 2-point control. - Heating optimization (temperature is reached at the set time). - Adaptation to valves (normally open or normally closed). - Activation of cooling operation via the attachment. - Supports internal and external temperature sensors. - Temperature drop detection. - Operating lock. - Valve protection function. - Display turns off after 2 minutes, permanent display of the current time possible. Functions with Gira System 3000 App: - Weekly timer with 40 individually programmable switching points and temperatures. - Vacation mode (start, end, temperature). - Boost function: quick heating for a maximum of 5 minutes. - Locking of local operation possible. - Integration of an external temperature sensor via Bluetooth. - Minimum and maximum temperature values adjustable. - Copying of settings and time programs to other attachments possible. - The combination of attachment 5393xx with 540700 is only possible from I05 (index). When connected to the Gira System 3000 App, the time and date are updated.