Study of application-specific controllers as well as general-purpose digital controllers. Includes material on digital/analog input and output types, the installation and set-up of the controllers for single zone, variable air volume (VAV), and unitary systems. Topics also include digital control system architecture and the fundamentals of control theory as they apply to digital HVACR control. DDC cycles of operation and control sequences and documentation are also covered. 4 Credits (3 Lecture - 3 Lab) Prerequisite(s): BBT209.