Milesight WT304 | LoRaWAN Fan Coil Thermostat (0-10V & On/Off Valve)

The Milesight WT304 is an advanced LoRaWAN fan coil thermostat for air-conditioning systems using 2-pipe or 4-pipe fan coil units (FCUs) with 3-speed or EC (0-10V) fans. It drives 0-10V proportional-integral valves as well as 2-wire or 3-wire On/Off motorized valves. It supports manual button control and automatic control via predefined logic, schedules or remote management for optimal comfort and energy efficiency. A 2.7-inch e-ink display and a built-in temperature/humidity sensor continuously show room status, and it integrates with standard LoRaWAN gateways, BACnet (via Milesight gateways), Milesight D2D and the Development Platform for real-time monitoring and remote management. Key Features 2-/4-Pipe FCU ControlDrives 2-pipe and 4-pipe fan coil units with 3-speed fans or EC (0-10V) fans for flexible HVAC control. Valve ControlDrives 0-10V proportional-integral valves for modulating control, plus 2-wire/3-wire On/Off valves. 2.7-Inch E-Ink DisplayA crisp, low-power e-ink screen shows room temperature, humidity and system status clearly. Connected & FlexibleLoRaWAN and Milesight D2D, BACnet via Milesight gateways, multicast, FUOTA; 8 plans with up to 16 schedules each. Typical Applications •Hotels & offices: per-room FCU control with key-card input and central management. •Commercial buildings: scheduled heating/cooling and ventilation for comfort and energy savings. •BMS integration: bring FCU zones into BACnet building-management systems via Milesight gateways. Technical Integration •FCU compatibility: 2-pipe and 4-pipe FCUs with 3-speed fans or EC (0-10V) fans •Valve control: 0-10V proportional-integral valves, plus 2-wire or 3-wire On/Off motorized valves •Relays: Valve & fan relays: 4 A resistive, 3 A inductive (capacitive loads not supported) •Control: Heat, Cool, Ventilation; fan Low/Medium/High/Auto; temperature range 5-35 °C; 8 plans, up to 16 schedules each •Inputs & sensing: Built-in temp (±0.5 °C) & humidity (±2% RH) sensor; 1 x 10k NTC input; 1 x DI (dry contact); external sensor mode •Connectivity: LoRaWAN (EU868, OTAA/ABP Class C) & Milesight D2D; internal antenna; BACnet via Milesight gateways; multicast; FUOTA •Display & build: 2.7-inch e-ink; 5 buttons; PC+ABS (UL94 V0); IP20; operating -20 to 60 °C •Power & mounting: 100-240 VAC, 50/60 Hz; < 2 W (no loads); fits 86/60/118/120 mm boxes; AWG 14-26 wiring •Setup help: For FCU wiring or BACnet integration, contact the shopioT technical team What's in the Box 1×Smart Fan Coil Thermostat 2×Wall Mounting Screws (M4x25) 1×2-Pin Signal Cable 1×Anti-Theft Fixing Screw (M2x4) 1×Quick Guide 1×Warranty Card Optional accessories: external NTC temperature sensor and wall plate kit (sold separately). Frequently Asked Questions Which FCUs does it support? 2-pipe and 4-pipe fan coil units with 3-speed fans or EC (0-10V) fans. What valves can it drive? 0-10V proportional-integral valves, plus 2-wire or 3-wire On/Off motorized valves. Can it integrate with a BMS? Yes - via BACnet through Milesight LoRaWAN gateways, plus Milesight D2D, multicast and the Development Platform. How is it powered and mounted? 100-240 VAC mains, in an 86/60/118/120 mm wall box (wall plate optional). Controlling Fan Coil Units? Talk To Our IoT TeamBrowse HVAC ControlShop Milesight