. . . . . The ZN220 is a fully programmable, native BACnet Advanced Application Controller (AAC) designed for controlling a single zone in a building. It communicates on an EIA-485 LAN using BACnet over ARCnet or BACnet MS/TP communications and connects seamlessly to the WebCTRL building automation system. Versatile controller suitable for a variety of applications, including fan coil units, lighting, and exhaust fan control. Standard library of control programs available for most zoning. Supports EIKON graphical programming software, an objectoriented tool that provides complete flexibility for any custom control sequence that you need. Supports Automated LogicÂ® communicating sensors, which are available in a variety of zone sensing combinations and support setpoint adjustment and occupancy overrides. Supports Automated Logic touchscreen interfaces for managing and troubleshooting the connected equipment easily. Supports live, visual displays of control logic, which uses real time operational data and aids in optimizing and troubleshooting system operations. Quick & easy test and balancing process. Controls up to 4 points (2 binary outputs and 2 universal inputs). High-speed, native BACnet over ARC156 communications delivers high speed response when you need it. Supports native BACnet over MS/TP communications when required. Fast, powerful, and fully distributed control allows complete independence from any other devices in the system. Firmware upgrades can be performed remotely. Easy startup and commissioning using WebCTRL user interfaces. Connects seamlessly to the WebCTRL building automation system. Supports demand limiting and optimal start for maximum energy savings.. Automated Logic. Automated Logic Corporation. ZN220.