Quick Summary
The HTW-WF08-FC-2 fan coil thermostat is designed for 2-pipe systems. It controls a 3-speed fan and one on/off valve. It supports cooling and heating changeover based on system design. This standalone thermostat uses internal sensing for stable room temperature control.
This page explains key control functions and their practical system value. It also covers control logic, wiring reference, and technical parameters. Typical project questions and selection points are included. Customisation options for project needs are also briefly introduced.
Key Functional Highlights
(This section introduces the main functions of this standalone fan coil thermostat and their engineering value.)
(01) 3-speed fan control
This fan coil thermostat supports low, medium, and high fan speeds. It allows matching airflow to room load conditions. This helps reduce noise during low demand periods. It also improves comfort stability in changing indoor conditions.
(02) 2-pipe on/off valve control
The thermostat controls a single valve for heating or cooling mode. It follows system water changeover without complex settings. This simplifies installation and reduces commissioning time. It is suitable for standard FCU projects with seasonal switching.
Please note that it cannot be used to control a 0-10V modulating valve, and that 2-pipe and 4-pipe type are two different sub-models.
(03) LED screen with colourful icons
The display uses clear icons for mode, fan speed, and temperature. It improves visibility for daily operation and quick checking. This reduces user errors during adjustment. It also supports consistent operation in hotel or office environments.
(04) Programmable function
The programmable schedule allows time-based temperature control. It helps reduce energy use during unoccupied periods. This improves overall system efficiency in daily operation. It also reduces manual adjustment needs for facility management.
There are also sub-models with LoRa communicaion in this HTW-WF08 series, one may refer to this link if interested (please click → HTW-WF08-2KE-LoRa).
Product Design and Display
(This section shows the appearance, screen interface, or installation dimensions of this standalone fan coil thermostat.)
Technical Specifications
(This section lists the key technical parameters relevant to this thermostat model.)
| Parameter | Value |
|---|---|
| Power Supply | 110~240Vac, 50/60Hz |
| Fan Relay | 5A |
| Built-in Sensor | NTC3950, 10K |
| Temperature Accuracy | ±0.5°C |
| Set-Point Range | 5~35°C |
| Installation | 86×86mm or EU round box |
| Warranty | 2 Year |
Wiring Diagram
(This section provides the wiring diagram for this thermostat in the relevant HVAC 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 project suitability, system limitations, and available customization options.)
This standalone thermostat is not suitable for BMS integration projects. It does not support Modbus or BACnet communication. It also does not provide remote app control or central monitoring.
Despite these limitations mentioned above, functional upgrades can be discussed. Communication options such as Modbus or Wi-Fi can be evaluated. External sensor or control logic changes may also be possible. All adjustments depend on project scope and technical feasibility.
OEM customisation is also supported for branding and project consistency. Logo printing and panel colour changes can be arranged. Label and packaging adjustments are also available. These options help align with different project requirements.
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: Can this fan coil thermostat work with BMS systems?
This model is a standalone thermostat. It does not support Modbus or BACnet communication. For BMS integration, other models should be selected.
Q2: How does the thermostat detect room temperature?
It uses a built-in NTC sensor. The sensor measures air temperature near the device. This ensures stable control under normal installation conditions.
Q3: Can it support external sensors?
This version does not include external sensor input. It relies only on the internal sensor. Other models can support external sensing if required.
Q4: Is it suitable for both heating and cooling systems?
Yes, it supports 2-pipe systems with seasonal changeover. The valve output follows system water mode. It works for both heating and cooling conditions.
Q5: What is the minimum order quantity and sample policy?
Samples are supported for evaluation. Standard MOQ is around 300 units. Smaller trial orders like 100 units can be discussed.
Q6: How to place an order and arrange shipment?
Contact us to confirm requirements and specifications. We will provide a PI for confirmation. Payment supports TT, PayPal, and Visa.
Q7: What is the production lead time?
Standard samples are ready within 7 days. Custom models require evaluation and program adjustment. Bulk orders like 300 units usually take around one month.
Q8: What shipping methods are available?
Courier delivery is commonly recommended and takes about 7 days. Air shipment also takes around one week. Sea shipping usually takes about one month.
Need Help Choosing the Right Model?
If you are unsure about system matching, please feel free to contact us for support. We can help check wiring, control logic, and project requirements.
Related Thermostat Models
For more details, please click here directly: Wi-Fi Thermostats | Modbus Thermostats | BACnet Thermostats
Final Note
FCU projects require stable temperature control and simple daily operation. This standalone fan coil thermostat HTW-WF08-FC-2 manages fan speed and valve switching in 2-pipe systems. It helps maintain reliable performance and supports efficient facility management.
