Zone Oneâ„¢ is a zone control damper assembly designed to solve overheating and overcooling problems. It can be used to control a single room or, by using a number of dampers, it can zone multiple rooms, says the manufacturer. The duct sensor, auto-changeover control module, and actuator are prewired. The zone control damper is available in two-position and fully modulating models. The damper assembly can be integrated into a variable air volume diffuser for commercial applications.

Jackson Systems LLC, 5418 Elmwood Ave., Indianapolis, IN 46203-6025; 888-652-9663; 317-227-1034 (fax); info@jacksonsystems.com; www.jacksonsystems.com.