Understanding HVAC Controls is designed to help you progressively see the role of HVAC controls in our world today and understand the system they control. We have included information about systems and general components used with most control system with a basic understanding of theme. As our world become more and more interested in saving our resources because of years of neglect. We must find ways to save energy and conserve our resources like oil, water. Controls for large HVAC (Heating ventilation and air condition systems help in many ways to save energy and as time passes have become very popular. Most large buildings, hospitals and schools have controls systems. Having an understanding of HVAC Controls can be most beneficial today. The goal is to provide and understanding of HVAC controls through this app.