Commercial HVAC refers to the systems used for heating, ventilation, and air conditioning in commercial buildings, such as offices, schools, and shopping centers. These systems are designed to maintain comfortable indoor temperatures and air quality for occupants while efficiently managing energy use. These HVAC systems often include components like air conditioners, furnaces, ventilation fans, and thermostats. They are typically larger and more complex than residential HVAC systems, requiring specialized installation and maintenance to ensure optimal performance and compliance with safety regulations.