Centralised control for central heating radiators - has ambient temp. controlled delayed switching units

摘要

A detector (1) is sensitive to exterior temperature variations, and a central control unit (2) is connected to switching unit (3) arranged in series, each switching unit being connected to a radiator (3) or a group of radiators. The central control unit (2) has means of periodically controlling the actuation of the switching units during a time period dependent upon the exterior temperature, and means adjusting the minimum and maximum heating levels. Each switching unit has a static switch (11) controlled by a "zener phase" triggering circuit. This statis switch (11) controls the in-out switching of a radiator or a group of radiators from the supply network. The switching unit can delay the opening or closing of the electrical supply circuit to the radiators.