This document provides a synopsis of graphical symbols which are intended to be placed on building equipments and/or technical documentation of products in order to instruct the person(s) using the equipments. These graphical symbols are primary intended: To identify control or automation or technical management equipments or part of these equipments: electronic devices (e. g. controller, scheduler, optimiser...), sensors, actuators. To indicate functions and their operating modes. To indicate settings for modes and functions parameters introduction. To designate connexions. To provide instruction to users (professional and/or end user) for the operation of the equipment. The graphical symbols in this document are not primarily intended for: Safety signs. Public information. Schematics for systems principles.