The Building Master 4000 is a direct digital control (DDC) system for the user’s boiler, air quality, leak detection, refrigeration, or building management requirements, in one package. It is ...

The advent of electromechanical controls in the 1970s, analog controls in the 1980s, direct digital control (DDC) in the 1990s, and complete building control integration in the 2000s has progressively ...

A direct digital control system comprising 29 HVAC and lighting nodes costs approximately $4,700 for the necessary hardware, software, and installation, compared to a comparable centralized control ...

A smaller building may have a single, computerized HVAC controller that operates the direct digital control (DDC) system. However, a large building normally requires a more complex system of ...

Direct digital control is used to establish electronic control of the heating, ventilation, and air conditioning systems on campus. Direct digital control systems also allow the consistent use of time ...