Smart fan coil thermostat (0-10V)
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Product code: WT304-868M
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Milesight WT304-868M is a smart LoRaWAN thermostat designed to control 2- and 4-pipe FCU fan coil units. It supports installations with 3-speed and 0–10 V EC fans and, depending on the system configuration, 0–10 V proportional valves and ON/OFF motorised valves.
The thermostat features a 2,7-inch E-Ink display, built-in temperature and humidity measurement, an NTC input, and a digital input for a hotel key card, reed switch, or other dry contact. Local schedules, open-window detection, freeze protection, Milesight D2D, and LoRaWAN Class C enable advanced HVAC control systems and BMS integration.
Shipping costs are not included in the price.
Shipping costs are not included in the price.
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WT304 — Advanced Control of 2- and 4-Pipe Systems
Milesight WT304 is a smart LoRaWAN thermostat designed to control FCU fan coil units in commercial buildings, hotels, offices, and other HVAC systems.
The model supports both 2-pipe and 4-pipe installations and works with 3-speed fans and EC fans controlled by a 0–10 V signal. The WT304 also supports 0–10 V proportional valves, enabling more precise control of advanced FCU installations.
Flexible HVAC Control and Centralised Management
2- and 4-Pipe FCU
One thermostat can be used with many fan coil configurations found in modern buildings.
0–10 V Control
The WT304 works with proportional valves and 0–10 V EC fans, enabling smoother system control.
LoRaWAN + D2D
The thermostat can be managed centrally via LoRaWAN, while Milesight D2D enables direct operation with compatible sensors.
Where Can the WT304 Be Used?
Control of a Wide Range of Fan Coil Units
Exact compatibility depends on the fan coil configuration, fan type, and valve control method.
Support for 0–10 V Valves and Fans
The WT304 is designed for more advanced HVAC installations using analogue 0–10 V control.
It can work with proportional control valves and EC fans, enabling smoother capacity regulation than conventional ON/OFF-only control.
Heating, Cooling and Ventilation
8 Plans and up to 128 Programmed Control Points
The WT304 supports up to 8 independent operating plans, each containing up to 16 schedules. In total, this allows up to 128 time-based control points to be configured.
Schedules can take into account operating hours, weekends, night periods, holidays, or times when individual building zones are unoccupied.
Room Temperature Measurement
Additional Environmental Condition Monitoring
NTC and Milesight Wireless Sensors
NTC Input
The available 10 kΩ ±1%, B3950 input allows an external temperature sensor to be used.
External Sensor Mode
The WT304 can use temperature data from an external source instead of relying solely on its built-in sensor.
Milesight D2D
A compatible Milesight sensor can transmit data directly to the thermostat without using a LoRaWAN gateway.
Integration with a Hotel Key Card or Reed Switch
The WT304 has one DI digital input for a dry contact. It can be connected to a hotel key-card switch, door or window reed switch, or another physical contact.
This makes it possible to automatically change the HVAC operating strategy depending on guest occupancy or the status of the monitored element.
Functions That Reduce Unnecessary HVAC Operation
Open Window Detection
A sudden temperature change can be recognised as an open window, allowing HVAC operation to be reduced.
Freeze Protection
Freeze protection helps protect the installation and room against excessively low temperatures.
Fan Delay
Delayed fan operation makes it possible to use the remaining heating or cooling energy in the heat exchanger.
2,7" E-Ink Display and Five Control Buttons
The black-and-white E-Ink display shows temperature, humidity, and the current fan coil operating status.
Five buttons allow the system to be switched on and off locally, the temperature setpoint to be changed, and the control and fan modes to be selected. Child Lock can restrict unauthorised setting changes.
Centralised Management of Multiple HVAC Zones
LoRaWAN Class C communication enables bidirectional data exchange and rapid execution of commands sent from the supervisory system.
With a suitable Milesight gateway, integration with BMS systems via BACnet is also possible, making it easier to incorporate the WT304 into existing building automation infrastructure.
Communication, Power Supply and Design
WT304 in an HVAC Automation System
The thermostat can simultaneously control a local fan coil unit and communicate bidirectionally with the central building management system.
Smart fan coil thermostat (0-10V)
Nowości
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Gross price $270.60incl. %s VATNet price $220.00without 23% VAT
