Quick Summary
The HTW-WF11-FC-2E Thermostat is designed for 2-pipe fan coil systems with a 3-speed fan and on/off valve control. It manages cooling and heating by monitoring room temperature through its built-in sensor or a Remote Sensor. It supports stable fan switching, valve output control, energy saving mode, and time display for daily operation logic.
On this page, one will find a clear explanation of control functions, wiring reference, technical parameters, configuration meaning, project fit analysis, and common deployment questions for this Thermostat.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
(01) 3-Speed Fan and 2-Pipe Valve Control
This Thermostat controls a 3-speed fan and a 2-pipe on/off valve. It ensures clear separation of cooling and heating logic, simplifies installation, and reduces commissioning errors in standard FCU projects.
(02) Remote Sensor Support
The Thermostat supports an external Remote Sensor for flexible temperature detection. This allows installers to place the sensing point away from air drafts or heat sources, improving measurement accuracy in hotel or office layouts.
If Modbus communication is required in addition to remote sensor input, please refer to this model (HTW-WF11-FC-2NE).
(03) Energy Saving Mode
An integrated energy saving mode helps reduce unnecessary fan and valve operation during unoccupied periods. This improves long-term energy efficiency and lowers operational cost without complex programming.
(04) Time Display Function
The built-in time display supports daily reference and coordinated control logic. It enhances usability for end users and simplifies maintenance checks for facility teams.
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 86x86mm 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 |
| 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.)
The HTW-WF11-FC-2E Thermostat is not designed for 4-pipe systems, modulating valve control, or direct BMS integration. For projects requiring advanced communication protocols, another model within the HTW-WF11 series should be selected.
Despite these limits mentioned above, function-based ODM discussion is possible. Adjustments such as communication upgrade, firmware modification, or interface changes can be evaluated according to project volume and technical feasibility.
OEM customisation is also supported. Logo printing, colour variation, private labelling, and packaging adjustment can be arranged for bulk orders to match brand positioning requirements.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1: Is this Thermostat suitable for a 4-pipe system?
No. This Thermostat is designed for 2-pipe on/off valve systems only. For 4-pipe applications, please select the corresponding 4-pipe model.
Q2: Can the Remote Sensor replace the built-in sensor completely?
Yes. The Thermostat allows connection of an external Remote Sensor. It improves temperature measurement accuracy in complex room layouts.
Q3: Does this Thermostat support BMS communication?
This model does not include Modbus or BACnet communication. It is intended for standalone control projects.
Q4: What is the minimum order quantity? Are samples available?
Sample orders are supported. Standard minimum order quantity is 300 units, though smaller trial quantities can be discussed.
Q5: How can we place an order?
Please contact us with your requirements. After confirmation, we provide a proforma invoice. Payment supports TT, Paypal, Visa, etc. Terms include EXW, FOB, DAP and others.
Q6: How is the product shipped?
Express door-to-door delivery is commonly recommended and takes about 7 days. Air freight also takes around 7 days. Sea freight usually requires one month or more.
Need Support?
If you are evaluating this Thermostat for a project, please contact us for technical confirmation or application advice~
