Quick Summary
The HTW-WF06-FC-2W Smart Wifi Thermostat is designed for 2-pipe fan coil unit systems, capable of controlling the fan and two wired heat and cool motorized valves. It supports heating and cooling operations, featuring negative black backlight and Wifi functionality compatible with Tuya. Its precise design contributes to stable indoor comfort and helps optimize energy usage in small to medium-sized spaces.
This page provides an overview of the product’s functions, system integration logic, installation guidance, typical project considerations, and potential customization options for engineering projects. It also highlights practical deployment considerations and suitability for diverse HVAC configurations.

Key Functional Highlights
(This section introduces the main control functions and their engineering value in FCU systems.)
(01) Precise Temperature Control
This smart wifi thermostat provides ±0.5°C control accuracy. It helps maintain stable indoor temperature. It also reduces unnecessary energy consumption during operation.
(02) Smart Connectivity
Built-in Wifi supports remote control through Tuya. Users can adjust settings without visiting the room. This improves operational efficiency in multi-room projects.(If you need 4 pipe system, click here)
(03) Fan and Valve Management
The thermostat controls fan relay up to 5A and valve relays up to 3A. It supports typical 2-pipe FCU systems. This ensures stable and reliable control in both residential and commercial applications.
(04) User-Friendly Display
Negative black backlight display provides clear visibility. Users can quickly check temperature and working status. This improves daily operation and maintenance efficiency.

Product Design and Display
(This section shows the thermostat appearance and interface layout.)
The thermostat appearance and interface layout to fully grasp the display effect and performance of the thermostat in real-world use

Technical Specifications
(This section lists the key technical parameters for project reference.)
| Parameter | Value |
|---|---|
| Power Supply | 110(+/-10%)VAC, or 220(+10%,-15%)VAC |
| Frequency | 50/60Hz |
| Accuracy | ±0.5°C or ±1°F |
| Current Load | Fan 5A (3A inductive), Valve 3A (1A inductive) |
| Setpoint Range | 5–35°C |
| Display Range | 5–99°C |
| Installation | EU or standard electric box |
| Protection Class | IP20 |
| Storage Temperature | -5–45°C |
Wiring Diagram
(This section provides wiring reference for installation.)
Clear wiring references to help you complete the installation quickly and correctly

Project Fit & Customization
(This section describes application limits and customization options.)
This smart wifi thermostat is not suitable for projects requiring BMS integration or high-voltage centralized control. It is designed for local control in small to medium FCU systems. Engineers should confirm load capacity and wiring compatibility before installation.
Despite these limits, ODM customization is available. Functions such as sensor logic, scheduling, or interface adjustments can be discussed. This allows adaptation to specific engineering needs.
OEM customization is also supported. Logo printing, color changes, and labeling can be arranged. This helps align the product with brand requirements without changing core functionality.
Certifications and Compliance
(This thermostat meets standard certification requirements for HVAC control products.)

Exhibition Moments
(Participation in international HVAC exhibitions demonstrates product application and industry presence.)

Frequently Asked Questions
What type of FCU systems does this thermostat support?
It supports 2-pipe fan coil systems with heating and cooling control.
Can it control fan and valves at the same time?
Yes. It manages fan and valve outputs together based on temperature settings.
Does it support remote control?
Yes. Wifi function works with Tuya for remote operation and monitoring.
What is the minimum order quantity?
Typical MOQ is 300 units. Smaller trial quantities can be discussed.
How can orders be placed?
Please contact us to confirm requirements. We provide PI and support TT, PayPal, Visa with EXW, FOB, DAP terms.
How are products shipped?
Courier delivery takes about 7 days. Air shipping is similar. Sea shipping takes around one month.
Need Support?
If you need help with selection or application, please contact us. We can support your project with technical advice and customization guidance.





