The Alerton VLC-444 is a compact, fully programmable BACnet field controller designed for fan-coil units and small HVAC applications. It’s part of the BACtalk VisualLogic series and offers a solid balance of control flexibility and integration capability.

 Key Features

• 4 universal inputs: Configurable for thermistor, dry contact, or analog signals (0–5 VDC, 0–10 VDC, 4–20 mA)
• 4 binary outputs: Hot-switched triacs rated at 24 VAC
• 4 analog outputs: Selectable for 0–10 VDC or 4–20 mA
• BACnet MS/TP communication: Up to 76.8 Kbps for seamless integration
• VisualLogic programming: Graphical language for custom control logic
• Nonvolatile flash memory: Stores programs and setup data reliably
• Microset compatibility: Works with Microset II wall sensors for user interaction