Quick Summary
HTW-WF11-FC-EB BACnet Thermostat is designed for fan coil unit temperature control. It manages a 3-speed fan and on/off valve in 2-pipe or 4-pipe systems. The thermostat supports heating and cooling operation. BACnet communication allows integration with building automation systems.
This page explains how the BACnet Thermostat works in typical FCU projects. It introduces control logic, main functions, and key parameters. You will also find wiring guidance, model code explanation, and typical installation questions.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
(1) 3-Speed Fan Control for Stable Room Airflow
The thermostat manages low, medium, and high fan speeds. This helps balance comfort and noise in different room conditions. In FCU projects, stable fan control supports steady airflow and reliable temperature response.
(2) On/off valve control + 2-Pipe and 4-Pipe System Compatibility
The controller supports both common FCU piping layouts. Installers can configure the system during setup. This reduces model selection errors and helps the BACnet Thermostat fit different project standards.
If the 0-10V valve control is required instead of on/off control, one may refer to this BACnet thermostat (HTW-WF11-MKB).
(3) Remote Sensor for Accurate Room Measurement
The thermostat supports an optional remote temperature sensor. It can measure temperature away from the device position. This improves sensing accuracy in hotels or offices where wall conditions affect readings.
(4) BACnet Communication for BMS Integration
The BACnet Thermostat can communicate with building management systems. Facility teams can monitor temperature status and adjust parameters centrally. This helps simplify system supervision in large buildings.
Display
(This section shows the product’s dimensions and the interface layout.)
Specifications
(This section lists the key parameters for reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 95–240Vac, 50/60Hz |
| Fan Relay Load | 5A |
| Valve Relay Load | 5A |
| Built-in Sensor | NTC3950, 10K |
| Temperature Accuracy | ±0.5°C |
| Set-Point Range | 5–35°C |
| Warranty | 2 Years |
| Installation Box | EU round box or 86×86mm box |
Wiring
(This section provides the wiring reference diagram for correct installation.)
Guide
(This section explains what configuration the model code refers to.)
| Fan coil series | xx stands for |
|---|---|
| EC | EC fan |
| 2/4 | 2 for 2-pipe on/off; 4 for 4-pipe on/off system |
| M | Modulating valve control |
| W | Wi-Fi |
| N/B | N for Modbus; B for BACnet |
| K/E | K for Keycard; E for External sensor |
| 24 | Powered by 24V, or with 24V output for 0-10V valve |
| Example HTW-WF11-FC-xx: if xx = 2EN, it stands for a 3-speed fan, 2-pipe system with on/off valve control, external sensor function, and Modbus communication. Most sub-models are ready-made. Kindly contact us to confirm availability. | |
Project Fit & Customization
(This section explains where the product can be used, its limits, and OEM/ODM options.)
This BACnet Thermostat is designed for standard fan coil units with relay outputs. It is not suitable for modulating valves requiring 0-10V control. Projects without BACnet infrastructure may not use its communication capability effectively.
Despite these limits mentioned above, ODM function customisation can be discussed. Some projects require specific communication settings, sensor options, or wiring logic. Our engineering team can evaluate these requirements with project engineers.
OEM customisation is also available for branding and market needs. This includes logo printing, label changes, and colour adjustments. Packaging design and documentation updates can also be arranged.
Certifications
Exhibition Moments
Frequently Asked Questions
1. Can this BACnet Thermostat connect to a building management system?
Yes. The thermostat supports BACnet communication for integration with BMS platforms. Building operators can read temperature data and adjust settings remotely through the central system.
2. Does the thermostat support both heating and cooling systems?
Yes. It supports both heating and cooling control in fan coil systems. The device can work with either 2-pipe or 4-pipe installations.
3. When should a remote temperature sensor be used?
A remote sensor helps measure temperature away from the thermostat position. This is useful in hotels or offices where airflow or sunlight affects wall readings.
4. What is the minimum order quantity and are samples available?
Yes, sample units are available for testing and evaluation. Standard minimum order quantity is about 300 units, but smaller trial quantities can sometimes be discussed.
5. How can we place an order?
Please contact us to confirm your project requirements first. After confirmation, we provide a proforma invoice. Payment methods include TT, PayPal, Visa, and more.
6. What shipping methods are available?
Courier door-to-door shipping is usually recommended and takes about seven days. Air freight takes similar time, while sea freight normally requires more than one month.
Need Support?
If you need help selecting the right BACnet Thermostat or sensor option, please contact us. Our team can assist with project discussions, wiring questions, and model confirmation.
