As a pioneer in the Charter school movement, CSUSA is one of the fastest-growing education management organizations in the United States, providing a wide variety of educational choices to over 82,000 students in more than 150 schools across Florida, South Carolina, North Carolina, and Louisiana. Overview: The Commercial HVAC Technician will be responsible for servicing, diagnosing, repairing, installing, and maintaining a wide range of HVAC systems across commercial facilities, including high-rise condominiums, schools, and large campuses.