Servicemen may partner with Journeymen in the repair and maintenance of centrifugal chillers, steam turbines, open-drive screw chillers, commercial boilers, burners, steam systems, hot water systems, hydronic systems, pumps, and associated mechanical equipment. At Johnson Controls, you'll have the chance to work on light commercial and/or heavy commercial teams servicing the most advanced commercial HVAC, hydronic, steam, and boiler systems, as well as cutting-edge industrial equipment.