A HVAC EMS (Energy Management System) Controls is a system that is designed to help manage the energy usage of a building. It does this by monitoring the temperature, humidity, and air quality of the building, as well as the amount of energy being used. The system then adjusts the settings of the HVAC system to ensure that the building is using the least amount of energy possible. This helps to reduce energy costs and improve the overall efficiency of the building. Additionally, the system can be used to monitor and control other energy-related systems such as lighting, ventilation, and security systems. The HVAC EMS Controls system is a great way to help manage energy usage and reduce energy costs in a building.