HVAC SCADA (Supervisory Control and Data Acquisition) is a type of industrial control system that enables remote monitoring and control of heating, ventilation, and air conditioning (HVAC) systems. It is used to monitor and control the performance of the HVAC system in order to maintain the desired temperature, humidity, and air quality levels in a building. The system consists of a central computer, a communication network, and a number of field devices, such as sensors, actuators, and controllers. The central computer collects data from the field devices and transmits commands to them. The system can be used to monitor and control the temperature, humidity, and air quality in a building, as well as to control the energy consumption of the HVAC system. The system can also be used to monitor and control the operation of other building systems, such as lighting, security, and fire safety. HVAC SCADA systems are used in commercial buildings, industrial facilities, and residential homes. They provide a cost-effective way to monitor and control the performance of HVAC systems, as well as to reduce energy consumption.