Quick Summary
Fan Coil Thermostat HTW-WF06-FC-2 is a wall-mounted thermostat designed for 2 pipe fan coil unit systems. It controls fan relay and a two-wired motorized valve through on/off logic, supporting both heating and cooling operation in shared water circuit applications.
This model supports programmable scheduling and a negative black backlight display to maintain stable indoor temperature. It is designed for predictable wiring, clear control response, and reliable operation in standard FCU environments.
This page outlines system control logic, technical specifications, installation conditions, project limits, and OEM/ODM customization options for engineering applications.
Key Features
(This section explains the core control functions and their practical value.)
(01) 2 Pipe System Control Structure
This Fan Coil Thermostat is designed for 2 pipe FCU systems using shared water circuits. Heating and cooling are managed through temperature deviation, simplifying system structure and ensuring stable switching logic.(4 pipe system for reference)
(02) Coordinated Fan and Valve Output
The Fan Coil Thermostat controls fan relay and motorized valve together. This prevents unnecessary water flow and improves system efficiency during operation.
(03) Programmable Scheduling
Time-based temperature control helps reduce runtime during unoccupied periods. It improves energy efficiency without requiring external automation systems.
(04) Negative Black Backlight Display
The display improves readability in low-light environments. It provides clear temperature and status information for daily operation.
Product Design and Display
(Fan Coil Thermostat’s dimensions and the interface layout for reference.)
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 parameters for reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 110(+/-10%)VAC or 220(+10%,-15%)VAC |
| Frequency | 50/60Hz |
| Control Type | 2 pipe fan coil thermostat |
| Accuracy | ±0.5°C or ±1°F |
| Fan Relay Load | 5A (3A inductive) |
| Valve Relay Load | 3A (1A inductive) |
| Setpoint Range | 5–35°C |
| Protection Class | IP20 |
Wiring Diagram
(This section provides the wiring reference diagram for correct installation.)
Clear wiring references to help you complete the installation quickly and correctly
Model Code Guide
| Fan coil series | xx stands for |
|---|---|
| 2/4 | 2 for 2-pipe; 4 for 4-pipe system |
| M | Modulating valve control |
| W | Wi-Fi |
| N/B | N for Modbus; B for BACnet |
| K/E | Keycard or external sensor |
| Example HTW-WF06-FC-xx | If xx = 2, it means 2-pipe system with standalone control. |
Project Fit & Customization
(This section explains where the product can be used, its limits, and OEM/ODM options.)
This thermostat is designed for indoor 2 pipe fan coil systems. It is not suitable for 4 pipe systems or projects requiring communication protocols such as Modbus or BACnet. It is intended for decentralized control environments.
ODM customization can be discussed. Control logic, display behavior, or scheduling functions may be adjusted based on project requirements.
OEM customization is supported, including logo printing, panel color, and packaging customization for branding purposes.
Certifications 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
Is this thermostat suitable for 4 pipe systems?
No. It is designed only for 2 pipe fan coil systems.
Does it support Modbus or BMS communication?
No. This is a standalone thermostat without communication protocol support.
What installation box is required?
It fits EU or standard electrical wall boxes. Wiring space should be confirmed before installation.
What is the MOQ and are samples available?
Samples are supported. Standard MOQ is 300 units. Smaller quantities may be discussed.
Need Support?
If you are selecting a thermostat for a 2 pipe FCU project, please contact us. We can assist with system matching and technical confirmation.
