Prevents frost below floor that´s is continuously cooled to minus degrees, type freezer rooms.
At a isolation of 20 cm and a temperature of - 30°C, the theoretical power output is around 7 W/m². For practical reasons recommended, however, 15-30 W/m² with a cable that has 10 W/m.
As practice added an extra loop in parallel as a reserve for ev. future needs.
The plant is regulated by the specially designed automatic box 02P.