{"product_id":"alerton-vlc-550-e-visuallogic-bacnet-field-controller-for-fan-coil-and-heat-pump-applications","title":"Alerton VLC-550-E VisualLogic BACnet Field Controller for Fan Coil and Heat Pump Applications","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe Alerton VLC-550-E is a fully programmable BACnet field controller designed for fan coil units, heat pumps, unit ventilators, and other terminal HVAC equipment. As part of the Alerton VisualLogic® family, the VLC-550-E combines native BACnet MS\/TP communication, high-speed processing, and flexible programmable control to deliver reliable and energy-efficient building automation.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlerton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilding Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVLC-550-E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBACnet Field Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVisualLogic®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable DDC Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBACnet MS\/TP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 115.2 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32-bit Processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Software\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlerton VisualLogic™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic Execution Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUniversal Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-resolution 16-bit Auto-Selectable Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Input Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermistor, Dry Contact, Pulse, 0–5 VDC, 0–10 VDC, 4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNonvolatile Flash Memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Wall Sensors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlerton Microtouch™, BACtalk® Microset™, Microset II®, Microset 4®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirmware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eField Downloadable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStand-Alone Operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFan Coil Units, Heat Pumps, Unit Ventilators, Terminal HVAC Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndoor Commercial HVAC Installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan\u003eVLC-550-E\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe VLC-550-E is a member of the Alerton VisualLogic® controller series, developed to provide distributed direct digital control (DDC) for commercial HVAC terminal units. Equipped with a powerful 32-bit processor, the controller executes control logic with a rapid 100 ms loop time while storing all application software and configuration data in nonvolatile Flash memory for dependable operation after power interruptions. Native BACnet MS\/TP communication enables seamless integration into Alerton Compass®, Envision, and other BACnet-compliant building automation systems without additional protocol converters. The controller is optimized for fan coil units, heat pumps, unit ventilators, and similar HVAC equipment where precise temperature regulation, fan control, and energy efficiency are essential.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eNative BACnet MS\/TP communication: Operates directly on BACnet networks at speeds up to 115.2 kbps.\u003c\/li\u003e\n\u003cli\u003eFully programmable controller: Supports custom HVAC control sequences using Alerton VisualLogic™.\u003c\/li\u003e\n\u003cli\u003eHigh-performance processor: 32-bit architecture with approximately 100 ms internal logic loop.\u003c\/li\u003e\n\u003cli\u003eHigh-resolution universal inputs: 16-bit auto-configuring inputs support multiple sensor types.\u003c\/li\u003e\n\u003cli\u003eMultiple input compatibility: Supports thermistors, dry contacts, pulse inputs, 0–5 V, 0–10 V, and 4–20 mA signals.\u003c\/li\u003e\n\u003cli\u003eNonvolatile Flash memory: Preserves applications and configuration without battery backup.\u003c\/li\u003e\n\u003cli\u003eFirmware upgrade capability: Downloadable operating code for future software enhancements.\u003c\/li\u003e\n\u003cli\u003eIntelligent wall sensor support: Compatible with Alerton Microtouch™, BACtalk® Microset™, Microset II®, and Microset 4®.\u003c\/li\u003e\n\u003cli\u003eStand-alone operation: Continues controlling HVAC equipment independently if network communication is interrupted.\u003c\/li\u003e\n\u003cli\u003eBackward compatibility: Compatible with previous VLC-550 and VLC-550C3 installations.\u003c\/li\u003e\n\u003cli\u003eFast diagnostics: LED indicators and programmable service functions simplify commissioning and maintenance.\u003c\/li\u003e\n\u003cli\u003eOptimized HVAC control: Ideal for fan coils, unit ventilators, heat pumps, and terminal unit applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe VLC-550-E delivers the reliability and precision required for intelligent terminal HVAC control, energy-efficient building automation, and BACnet-based facility management.\u003c\/p\u003e","brand":"Alerton","offers":[{"title":"Default Title","offer_id":52175312159018,"sku":"VLC-550-E","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_6b7d5b96-7341-4497-812e-b1e0408d2a06.webp?v=1785959023","url":"https:\/\/iqelectro.com\/products\/alerton-vlc-550-e-visuallogic-bacnet-field-controller-for-fan-coil-and-heat-pump-applications","provider":"IQElectro","version":"1.0","type":"link"}