The definition of a DDC Controls HVACHVAC (Heating, Ventilation, and Air Conditioning) system is a type of control system that uses digital and computer-based technologies to regulate the temperature, humidity, and air quality of a building. This type of system is used in commercial and industrial buildings to ensure that the indoor environment is comfortable and safe for occupants. DDC Controls HVACHVAC systems are typically composed of sensors, controllers, and actuators that work together to monitor and adjust the environment as needed. The sensors measure the temperature, humidity, and air quality of the building, while the controllers interpret the data and send commands to the actuators to adjust the environment accordingly. This type of system is often more efficient than traditional HVAC systems, as it can be programmed to adjust the environment as needed and can be monitored remotely. Additionally, DDC Controls HVACHVAC systems are more cost-effective, as they require less maintenance and are more energy-efficient.