Under general direction, the purpose of the position is to perform skilled to advanced craft-mechanical air conditioning and HVAC systems work in various installation, maintenance and service tasks for the school district. Employees in this classification perform master level HVAC trades work with considerable independence and latitude in judgment concerning methods, materials, and priority of assigned work orders. Position is responsible for ensuring provision of fresh, environmentally safe, and dehumidified cooled or heated conditioned air for the assigned region of the district. Essential functions as outlined herein are performed according to the functional area of assignment. Performs related work as directed.