Johnson Controls - 10010 E Knox Ave [Maintenance Technician] As a Sprinkler Apprentice at Johnson Controls, you'll: Learn/Assist in the installation of fire protection piping, valves, and accessories for commercial and industrial applications; Assist the foreman in the installation of wet, dry, pre-action, and deluge sprinkler systems; Follow all safety policies; Maintain proper documentation for all work performed; Adhere to company safety policies and procedures...Hiring Immediately >>