Quick Summary
This room thermostat HTW-WF11-FC-MKB is designed for fan coil units in commercial and hotel buildings. It controls a 3-speed fan and a 0–10V modulating valve. The device supports 2-pipe FCU systems for heating or cooling operation. BACnet communication allows integration with building management systems.
This page explains the working logic and the engineering role of the room thermostat. It outlines control functions, wiring concepts, and key parameters. Typical installation questions and project considerations are also discussed. OEM and project customisation options are briefly introduced.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
(1) 3-Speed Fan Control
Three fixed fan speeds allow stable airflow adjustment in typical fan coil systems. Installers can match fan performance with room load. This improves comfort control and reduces unnecessary noise during operation.
(2) 0–10V Modulating Valve Control
The thermostat outputs a 0–10V signal to regulate the modulating valve opening. Water flow changes gradually instead of switching fully on or off. This helps stabilise room temperature and reduces energy fluctuations.
(3) Keycard Energy Management
The keycard input is useful in hotel room applications. When the card is removed, the thermostat can reduce system operation. This helps prevent unnecessary cooling or heating when guests leave.
If the keycard feature is not required, one may refer to this BACnet thermostat with external sensor support instead (HTW-WF11-MEB).
(4) BACnet Communication
BACnet communication allows the thermostat to connect with a building management system. Facility operators can monitor room temperature and system status. This supports centralised management in large commercial projects.
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 |
| Current Load | Fan Relay 5A; Valve Relay 5A |
| Built-in Sensor | NTC3950, 10K |
| Temperature Accuracy | ±0.5°C |
| Set-Point Range | 5–35°C |
| Warranty | 2 Year |
| Installation Box | EU round box or Standard 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 room thermostat is not suitable for projects that require Wi-Fi connectivity or mobile app control. It also does not fit systems needing on/off valve control or 4-pipe configurations. Projects that do not use BACnet communication may not require this model..
Despite these limits mentioned above, some functions can be customised for project needs. Communication options or control logic may be adjusted after technical discussion. Our engineering team usually evaluates feasibility before confirming project requirements.
OEM services are also available for brand partners. Logo printing, colour options, and product labels can be customised. Packaging and manuals may also be adjusted according to project requirements.
Certifications
Exhibition Moments
Frequently Asked Questions
1. Can this room thermostat work with most fan coil systems?
Yes. The room thermostat supports typical 2-pipe FCU systems with 0–10V valve control. Please confirm valve type and wiring before installation.
2. Can this thermostat connect to a building management system?
Yes. The thermostat supports BACnet communication for BMS integration. This allows monitoring and control from a central management platform.
3. Is the installation complicated for technicians?
Installation follows standard fan coil thermostat wiring practice. The thermostat fits EU round boxes or standard 86×86 wall boxes.
4. Do you provide samples and what is the MOQ?
Yes, thermostat samples are available for testing. The usual minimum order quantity is 300 units, though smaller trial quantities can be discussed.
5. How can I place an order?
Please contact us to confirm project details. After confirmation, we issue a proforma invoice. Payment methods include TT, PayPal, Visa, and similar options.
6. What shipping methods are available?
Courier delivery is usually recommended and takes around seven days. Air freight also takes about seven days, while sea shipping usually requires one month or longer.
Need Support?
If you need help selecting the right room thermostat for your project, please contact our team. We are glad to discuss applications, compatibility, and project requirements.
