Quick Summary
The HTW-WF01-FC-4 is designed for indoor fan coil unit systems in homes and small buildings. It supports a 4-pipe system with both heating and cooling control. The thermostat controls fan speed and motorized valves. It uses simple on/off logic to keep room temperature stable.
This Digital Thermostat is suitable for projects that need clear control and easy operation. This Digital Thermostat supports daily temperature management and simple scheduling. It helps improve comfort and reduce energy use. The content below shows key functions, system logic, and main parameters in a clear way.

Key Features
These features support simple control and stable daily use.
(01) White and black colour options
Two colour options are available. This helps match different room styles. This Digital Thermostat fits both modern and simple interiors.
(02) 4-pipe heating and cooling system
The thermostat supports a 4-pipe system. It controls both heating and cooling valves. This Digital Thermostat works well in different seasons.
(03) Fan coil and valve control
The thermostat controls fan coil units and motorized valves. It uses simple on/off control. This Digital Thermostat keeps room temperature stable.
(04) Programming function
The weekly schedule allows automatic control. It helps reduce energy use during idle time. This Digital Thermostat improves efficiency.

Product Design and Display
The design is simple and clean. It fits indoor wall installation. The interface is easy to read. Buttons are clear and easy to use. This Digital Thermostat is suitable for daily home use.

Technical Specifications
Key parameters are listed below for installation and system matching.
| Parameter | Value |
|---|---|
| Power Supply | 95–240VAC, 50/60Hz |
| Power Consumption | 5A |
| Set Range | 5–35°C |
| Accuracy | ±0.5°C or ±1°F |
| Installation | EU or Standard Electric Box |
| Protection Level | IP20 |
| Shell Material | PC+ABS (Fireproof) |
| Warranty | 2 Years |
Wiring Diagram
The wiring includes fan speed outputs and valve connections. It supports heating and cooling control in 4-pipe systems. This Digital Thermostat is easy to install.

Model Code Guide
This section explains what each part of the model code means for system configuration.
| Fan coil series | xx stands for |
| 2 | 2-pipe fan coil system |
| 4 | 4-pipe fan coil system |
| W | WiFi |
| EC | EC fan 0-10V |
| B | BACnet |
| N | Modbus communication |
| K | Keycard |
| E | External sensor |
| M | 0-10V modulating valve |
| Example WF01-FC-XX | If XX=KB, it means 2/4-pipe FCU thermostat with BACnet function, external sensor (If you need this, click here) |
Project Fit & Customization
This model is suitable for residential and light commercial use. It supports basic HVAC control. This Digital Thermostat is not designed for complex modulating systems.
Some adjustments can be discussed. Control logic and interface layout can be modified. This Digital Thermostat supports flexible project needs.
OEM support is available. Logo, colour, and packaging can be customised. This Digital Thermostat can match different market needs.
Certifications and Compliance
The thermostat meets common HVAC standards. It supports safe and stable operation. This Digital Thermostat is suitable for long-term use.

Exhibition Moments
The product is shown in HVAC exhibitions and industry events. This helps improve product design. This Digital Thermostat is used in many projects.

Frequently Asked Questions
Q1: Is this thermostat suitable for home use?
Yes, it is designed for residential use. This Digital Thermostat is simple and easy to operate.
Q2: Does it support both heating and cooling?
Yes, it supports both functions. This Digital Thermostat works with 4-pipe systems.
Q3: Can it control fan speed?
Yes, it supports fan speed control. This Digital Thermostat helps adjust airflow.
Q4: Does it support programming?
Yes, it supports weekly scheduling. This Digital Thermostat helps manage temperature.
Q5: What is the MOQ and can I get samples?
MOQ is 300 units. Samples are available. Smaller orders can be discussed.
Q6: How to place an order and arrange shipping?
Contact us for PI. Payment supports TT and PayPal. Shipping supports EXW, FOB, and DAP.
Q7: How long does production take?
Samples take about 7 days. Custom orders take 3–5 weeks. Bulk orders need about one month.
Q8: What shipping methods are available?
Express takes about 7 days. Air is similar. Sea shipping takes about one month.
Need Support?
If you are selecting a model or planning a project, please contact us. We can help match the right thermostat.
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Home HVAC systems need simple and stable control. This Digital Thermostat provides clear operation and reliable performance. It helps improve comfort and supports efficient daily use.






