Easily browse built-in images or drag in your own from your desktop.ĬSWorks releases HVAC symbol library for building automation systems March 2011 News Release Belimo (Click Message to Learn More) CSWorks releases HVAC symbol library for building automation systems CSWorks adds HVAC (Heating, Ventilating, and Air Conditioning) symbol library to its HMI/SCADA framework for building automation industry. VTScada's SCADA Graphics Library contains over 3,500 symbols and graphics.