Quick Summary
The HTW-31-F13-2 Fan Coil Thermostat is designed for 2-pipe FCU systems used in heating and cooling. It controls a 3-speed fan and a motorised valve. The Fan Coil Thermostat supports manual and automatic fan modes, ensuring stable operation in different room conditions.
This page explains how the Fan Coil Thermostat works in practical FCU applications. It includes control logic, wiring reference, and key parameters. It also outlines project fit, customisation options, and answers common questions to support selection.
Key Features
(This section explains the core control functions and their practical value.)
(01) Flexible heating and cooling modes
The Fan Coil Thermostat supports heating, cooling, and auto modes. This allows the system to adjust based on seasonal demand, improving usability and reducing manual switching in daily operation. For the 4-pipe system thermostat, you can refer to this link: HTW-31-F13-4.
(02) Manual and automatic fan control
The Fan Coil Thermostat offers both manual 3-speed selection and automatic fan control. This helps balance comfort and energy use, ensuring stable airflow in different room conditions.
(03) Surface mounting design
The Fan Coil Thermostat is designed for surface mounting. This simplifies installation where flush mounting is not suitable, reducing installation complexity and project cost.
(04) Simple and stable system logic
The Fan Coil Thermostat uses standard 2-pipe control logic. This ensures compatibility with most FCU systems and supports reliable long-term operation.
Product Design and Display
(This section shows the product’s dimensions and the interface layout.)
Technical Specifications
(This section lists the key parameters for reference and project confirmation.)
| Power Supply | 100~240VAC |
| Frequency | 50/60Hz |
| Max Current | Max. 2A/output, Max. 3A total |
| Accuracy | ±0.5°C or ±1°F |
| Sensor | NTC 3950, 10K |
| Setpoint Range | 5~35°C |
| Ambient | 0~50°C |
| Protection Class | IP30 |
Wiring Diagram
(This section provides the wiring reference diagram for correct installation.)
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 |
| Example | HTW-WF11-FC-xx: if xx = 2, it stands for a 2-pipe system with on/off valve control. Most sub-models are ready-made. Kindly contact us to confirm availability. |
Project Fit & Customization
(This section explains where the product can be used, its limits, and OEM/ODM options.)
The Fan Coil Thermostat is suitable for standard 2-pipe FCU systems where simple and reliable control is required. It is not suitable for projects requiring communication protocols or smart integration.
Despite these limits mentioned above, ODM customisation can be discussed. Adjustments such as control logic or interface design may be evaluated based on project requirements.
OEM customisation is also supported. Options include logo printing, colour changes, and label design. This helps match project branding and installation requirements.
Certificates and Compliance
Frequently Asked Questions
Q1. Is this thermostat suitable for 2-pipe systems?
Yes, it is designed for 2-pipe FCU systems with heating and cooling control.
Q2. Can it control fan speed automatically?
Yes, it supports both manual and automatic fan speed control for better comfort.
Q3. Is it easy to install?
Yes, the surface mounting design makes installation simple and suitable for many projects.
Q4. Do you support samples and what is the MOQ?
Yes, samples are available. MOQ is usually 300 units, but smaller quantities can be discussed.
Q5. How can we place an order?
Please contact us to confirm requirements. We will provide a PI. Payment supports TT, PayPal, Visa. Terms include EXW, FOB, DAP.
Q6. How will the goods be shipped?
Courier delivery takes about 7 days. Air freight is similar. Sea shipping usually takes over one month depending on destination.
Related Thermostat Models
For WiFi or other options, you can contact us for selection support. You can refer to below links as well:
The Fan Coil Thermostat is suitable for basic 2-pipe FCU systems. It offers stable control. It helps maintain comfort with simple installation and reliable performance. 【More models: fan coil thermostat】
