SYSTEM TO INTERCONNECT, LINK, AND CONTROL VARIABLE TRANSMISSION WINDOWS AND VARIABLE TRANSMISSION WINDOW CONSTRUCTIONS

摘要

An electrical control system is disclosed for controlling a plurality of variable transmittance windows. To achieve these and other aspects and advantages, the electrical control system of the present invention comprises a master control circuit for supplying control signals representing transmittance levels for the variable transmission windows, and a plurality of window control circuits coupled to each of the master control circuit. Each window control circuit controls the transmittance of at least one of the variable transmission windows in response to control signals received from the master control circuit. Also disclosed are several window constructions that enable variable transmission windows, such as electrochromic windows, to be used in architectural windows having a moving sash. Also disclosed are several window constructions that enable variable transmission elements to be more easily installed and replaced.