The THZ System is modular: At its core is the ZE central unit, the heart of every system. It is connected to the 230V mains grid via a power pack. A 2-wire bus cable connects to the room units and the wireless receiver.

The ST switching steps and the optional VR flow control are also linked via the BUS. The servo-motors are integrated via the ST switching step. Software modules, mobile phone and a wireless modem complement the range to enable remote operation and to analyse the heating data.