It offers the possibility of programming the heating calendar. When simply warm atmosphere is required when arriving at work, the controller of the device can be programmed for earlier operation and achievement of the temperature that would be comfortable.
Economy mode or the mode which prevents the freezing of the heating medium is helpful at the time when nobody uses the heated rooms. This enables such planning of device operating time that would be the most economical and convenient.
HMI sonneEC controller optimises the operation of the heaters ensuring their continuous and reliable operation, and well-thought functions of the device enable significant power efficiency.