HVAC Building Automation Systems (BAS) are computer-based systems that are used to control and monitor the heating, ventilation, and air conditioning (HVAC) systems in a building. These systems allow for the efficient and effective operation of the HVAC system, as well as providing data that can be used to analyze the system’s performance. The BAS is made up of several components, including sensors, controllers, and actuators. The sensors detect changes in the environment, such as temperature, humidity, and air quality, and send this data to the controllers. The controllers then interpret the data and adjust the actuators, which control the operation of the HVAC system. This process is repeated in a continuous loop, ensuring that the building is comfortable and energy efficient. The BAS also allows for remote monitoring and control, so that the system can be adjusted from anywhere in the world. This is especially useful for large buildings, such as office buildings, where the HVAC system needs to be monitored and adjusted on a regular basis.