What software is commonly used to create HVAC control diagrams?

Several software tools are commonly used to create HVAC control diagrams, including AutoCAD, Revit, and specialized HVAC design software like Carrier’s Hourly Analysis Program (HAP) or Trane’s TRACE 700. These tools provide a range of features and functionalities, such as symbol libraries, drag-and-drop interfaces, and automated drafting capabilities, making it easier to create accurate and detailed control diagrams.