Quick Summary
HTW-WF01-FC-MKE is a modulating room thermostat for 2-pipe FCU systems. It controls a 3-speed fan and a modulating valve. It supports both cooling and heating control. It also supports an external sensor and hotel keycard function.
This page explains how this thermostat works in real projects. It shows the main functions and their practical value. It also helps confirm key parameters and project questions. We also welcome discussion on suitable custom options.
Key Functional Highlights
(This section introduces the main control functions of this modulating room thermostat and their engineering value in FCU projects.)
(01) 3-speed fan control
This thermostat controls low, medium, and high fan speeds to match changing room demand. It helps the FCU deliver more suitable airflow during daily operation. This improves comfort, supports smoother running, and helps avoid unnecessary fan energy use.
(02) 2-pipe modulating valve control
It is designed for 2-pipe FCU systems with modulating valve control. Compared with simple on/off action, it adjusts valve output in a more gradual way. This helps keep room temperature more stable and reduces obvious hot and cold swings.
(03) External sensor support
It supports an external sensor for more flexible temperature sensing in real projects. This is useful when the wall position is not ideal for accurate control. It helps improve temperature response and makes installation planning easier in different rooms.
(04) Hotel keycard function
This model supports hotel keycard control for occupied and unoccupied room logic. When guests leave the room, the system can move to a lower-demand state. This helps reduce wasted energy and supports more practical hotel room management.
(05) Energy saving mode
It includes an energy-saving mode to reduce unnecessary system output during normal use. This helps lower extra heating or cooling demand when full comfort is not needed.
Product Design and Display
(This section shows the appearance, screen interface, and installation size of this modulating room thermostat model.)
Technical Specifications
(This section lists the key technical parameters relevant to this modulating room thermostat model.)
| 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 |
| Protection Class | IP20 |
| Warranty | 2 Year |
| Installation Box | EU round box or Standard 86x86mm Box |
Wiring Diagram
(This section provides the wiring diagram for this modulating room thermostat in the relevant FCU control system.)
Model Code 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 describes the project suitability, system limitations, and available customization options for this modulating room thermostat.)
This model is not suitable for 4-pipe FCU systems. It is also not made for BMS communication. It does not support Modbus, BACnet, Wi-Fi, or app-based group control.
Despite these limits, we can discuss suitable ODM changes. For example, communication, control logic, or sensor options may be evaluated. We review each request based on system needs and project feasibility.
We also support OEM work for project orders. This may include logo printing, label changes, or colour customisation. Please feel free to get in touch with us for project discussion.
Certificates and Compliance
(This thermostat complies with European market requirements and is supported by certifications such as CE, RoHS, LVD test reports, EMC test reports, etc)
Exhibition Moments
(Our team regularly participates in international HVAC exhibitions such as Febrava in Brazil, The Big 5 in Dubai, and ISK-SODEX in Turkey, etc.)
Frequently Asked Questions
Q1: Is this thermostat suitable for all FCU systems?
No, this model is made for 2-pipe FCU systems only. It is not suitable for 4-pipe projects. Please check the valve control type before selection.
Q2: Does it support both built-in and external sensing?
Yes, it has a built-in sensor and also supports an external sensor. This gives more flexibility during installation. It is useful when wall sensing is less ideal.
Q3: Can this model connect to a BMS?
No, this version does not support BMS protocols. It is a standalone controller for local FCU control. For Modbus or BACnet, other models should be considered.
Q4: Is this model suitable for hotel projects?
Yes, it includes a keycard function for hotel room control. This helps reduce wasted energy in empty rooms. It is a practical choice for hotel guest room use.
Q5: What is the MOQ and can we get samples?
We support samples for testing and evaluation. Our usual MOQ is 300 units. Smaller trial quantities, such as 100 units, can also be discussed.
Q6: How do we place an order and arrange shipment?
Please feel free to get in touch with us first. We will confirm the requirements and then provide a PI. We support TT, PayPal, Visa, and terms such as EXW, FOB, and DAP.
Q7: How long does it take to prepare the goods?
Standard samples can usually be sent within 7 days. Custom orders need evaluation and function review. Around 300 units usually need about one month.
Q8: How can the goods be shipped?
Courier is often the most practical choice for samples. Delivery usually takes about 7 days. Sea freight usually needs one month or more.
Need Help Choosing the Right Model?
If you are comparing different options, please feel free to get in touch with us. We are glad to help with your project selection.
Related Thermostat Models
For more details, please click here directly: Wi-Fi Thermostats | Modbus Thermostats | BACnet Thermostats
Final Note
In FCU projects, stable temperature control and efficient operation are key goals. This model manages fan coil output through fan and modulating valve control. It supports steady performance and easier energy management in daily building use.
