The definition of a commercial HVACHVAC (Heating, Ventilation, and Air Conditioning) system is a system that is designed to provide a comfortable environment for occupants in a commercial building. It is responsible for controlling the temperature, humidity, and air quality of the building, as well as providing fresh air and ventilation. Commercial HVAC systems are typically more complex than residential systems, as they must be able to handle the needs of a larger space and a larger number of occupants. Commercial HVAC systems are typically designed to provide energy efficiency, cost savings, and a healthy indoor environment. They are also designed to be able to handle the needs of a wide variety of businesses, from retail stores to offices and industrial buildings. A commercial HVAC system typically consists of an air handler, a condenser, and a variety of ductwork, piping, and other components. The air handler is responsible for circulating the air throughout the building, while the condenser is responsible for cooling the air. The ductwork and piping are responsible for delivering the air to the various rooms and spaces in the building.