35.Operates, adjusts, and repairs water/steam boilers, chillers/heaters, cooling towers, air handlers, exhaust fans, variable air volume systems, unit heaters, gasoline/diesel pumps, circulating pumps, and water softeners. 25.Performs maintenance and repair including painting, general carpentry, flooring, renovations, moving furniture, drywall, and roof repair, light fixture repair, plumbing fixture repair, installation of flooring materials.