{"product_id":"automated-logic-zn551-controller-enclosed-energy-management-equipment-fire-alarm","title":"Automated Logic ZN551 Controller Enclosed Energy Management Equipment Fire Alarm","description":"\u003cdiv\u003e\u003cp\u003eAutomated Logic ZN551 Zone Controller is a BACnet Advanced Application Controller (AAC) engineered to manage a single building zone’s HVAC equipment within Automated Logic WebCTRL building automation systems. This fully programmable controller is native BACnet and integrates with Automated Logic communicating sensors to optimize comfort, energy use, and safety coordination across the zone. The ZN551 provides 5 digital outputs (DO), 5 universal inputs (UI), and 1 analog output (AO), enabling direct control of actuators and monitoring of sensors essential to zone‑level operation. It is BACnet conformance tested (BTL) to the BACnet Advanced Application Controller profile (ANSI\/ASHRAE 135-2012, Annex L), ensuring interoperability in multi‑vendor environments. Designed for single‑zone applications, it supports energy‑management sequences and can participate in safety and alarm integrations within a building’s life‑safety ecosystem. Typical applications include controlling rooftops, variable‑air‑volume boxes, dampers, and sensor‑driven setpoints within commercial facilities, while coordinating with other Automated Logic controllers to deliver centralized energy analytics and alarms whenever safety‑linked conditions arise.\u003c\/p\u003e\u003c\/div\u003e","brand":"Automated","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51660356878638,"sku":null,"price":290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_ed2d47e7-76f3-4cd8-904b-3ed863d5706c.jpg?v=1769536696","url":"https:\/\/plgautomation.com\/products\/automated-logic-zn551-controller-enclosed-energy-management-equipment-fire-alarm","provider":"PLG Automation ","version":"1.0","type":"link"}