VEMER - VE452900 - Chronos Nero programmable thermostat, wall-mounted, touch screen, battery operated

The VEMER Chronos Nero (VE452900) is a wall-mounted digital smart thermostat with an elegant touch-screen interface and a large blue backlit LCD display. The four touch icons placed at the bottom of the screen ensure intuitive operation and give the device a sleek, modern look suitable for any residential or commercial environment.

Weekly programming and energy saving

Thanks to its weekly scheduling with 1-hour resolution, Chronos Nero lets you set specific heating or cooling time slots, reducing energy waste when away from home or during the night. The thermostat supports 3 settable temperatures plus antifreeze and manual mode, with ON-OFF or proportional regulation and an adjustable hysteresis from 0.1 to 1 °C.

Remote switching and configurable input

The configurable digital input allows connection of an external temperature probe or a telephone dialler, enabling remote power on/off of the system. The relay output is a heat-exchange (changeover SPDT) contact rated 5 A at 250 Vac, suitable for driving boilers, valves or air-conditioning units.

Keypad lock and user-friendly functions

• Password-protected keypad lock, ideal for public installations
• Summer and Winter operating modes
• Antifreeze, timing and delay functions
• Automatic daylight saving/standard time changeover
• Temperature measurement accuracy 0.5 °C, resolution 0.1 °C

Power supply and technical data

Powered by 2 × AAA 1.5 V alkaline batteries with up to 12 months autonomy and 1 minute of power reserve. IP40 protection, ErP Class IV, operating temperature 0 ÷ 50 °C. VEMER also offers the Set Chronos RF Nero kit, combining the thermostat with the RX.16A remote actuator.