Quick Summary
This Fan Coil Thermostat HTW-WF01-FC-2 is designed for two-pipe fan coil unit systems operating in heating or cooling mode. It provides on/off control of the fan coil unit and two wired motorized valves for water flow regulation based on room temperature feedback. The controller supports programmable operation, defined temperature setpoints, and stable relay outputs for common FCU applications in residential and light commercial buildings.
This page explains how the Fan Coil Thermostat functions within an FCU system, how its control logic supports reliable operation, what technical parameters should be verified during project selection, and which application conditions or customization options may apply in practical deployments.
Key Features
(This section explains the core control functions and their practical value.)
(01) Two-Pipe FCU Control Logic
This Fan Coil Thermostat is intended for two-pipe systems where heating or cooling is determined by water temperature change. Clear control logic supports correct system matching and helps avoid configuration conflicts during seasonal operation.
(02) Independent Fan and Valve Switching
Separate relay outputs for the fan coil unit and motorized valves enable stable on/off control without additional controllers. This simplifies wiring, reduces commissioning effort, and improves consistency across multiple FCU installations.
(03) Programmable Operation for Energy Planning
Programmable schedules allow temperature control to follow occupancy patterns. This helps limit unnecessary runtime while maintaining comfort requirements, supporting basic energy management without centralized systems.
(04) Defined Accuracy and Setpoint Boundaries
With a specified accuracy and controlled setpoint range, the Fan Coil Thermostat delivers repeatable temperature regulation. This stability is important for long-term operation, predictable maintenance, and occupant comfort consistency.
Product Design and Display
(Product’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.)
| Product Model | HTW-WF01-FC-2 |
| Power Supply | 110VAC (+/-10%) or 220VAC (+10% / -15%) |
| Frequency | 50 / 60Hz |
| Temperature Accuracy | ±1°C at 21°C |
| Fan Relay Load | 5A (3A inductive) |
| Valve Relay Load | 3A (1A inductive) |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm junction box or US 2×4 in box |
| 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
This section explains what configuration the model code refers to.
| 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 | Esternal Sensor |
| M | 0-10V Modulating valve |
| Example WF01-FC-XX | If xx = 2, it stands for 2-pipe FCU thermostat with standalone control. |
Project Fit & Customization
(This section explains where the product can be used, its limits, and OEM/ODM options.)
This Fan Coil Thermostat is intended for standalone two-pipe FCU applications with on/off control requirements. It is not suitable for projects requiring communication with BMS platforms, centralized supervisory systems, or four-pipe configurations.
ODM customization can be discussed based on project requirements. Control logic, interface behavior, or installation preferences may be adjusted after evaluation.
OEM customization is supported, including logo printing, panel color, and packaging adjustments to match branding needs.
Certifications and Compliance
(This section presents the certification documents supporting product compliance.)
Certification documents for Swan Controls thermostats
Exhibition Moments
(This section shows real exhibition participation and product display scenarios.)
Swan Controls presenting thermostats at an international HVAC exhibition
Frequently Asked Questions
Is this Fan Coil Thermostat suitable for four-pipe systems?
No. It is designed for two-pipe FCU systems only. Four-pipe applications require different valve control logic.
Does the thermostat support both heating and cooling operation?
Yes. Heating or cooling operation depends on the supplied water temperature and the connected valve configuration.
What installation box standards are supported?
The Fan Coil Thermostat supports standard 86×86 mm junction boxes and US 2×4 inch wall boxes.
What are the minimum order quantity and sample options?
Samples are available for evaluation. Typical minimum order quantity is 300 units, and smaller trial quantities can be discussed.
Need Support?
If you need help with model selection or application review, please contact us. We can assist with wiring confirmation and system matching.
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