Quick Summary
This HTW-FC01-2PM hvac thermostat is designed for basic 2-pipe fan coil systems. It controls a single-speed fan and a modulating water valve. The unit supports both heating and cooling modes. It uses a 24Vac power supply and simple control logic.
This page explains how it works in real FCU systems, covering control functions, wiring logic, and key parameters. It also helps us check model suitability and common project issues. Customisation options are also briefly introduced for practical use.
Key Functional Highlights
(This section introduces the main control functions of this hvac thermostat and their engineering value in real HVAC systems.)
(01) 24Vac power supply
This hvac thermostat uses a standard 24Vac power input. It fits many commercial HVAC systems. It helps reduce mismatch during installation. It also supports stable operation in long-term use.
(02) 1-speed fan control
The thermostat controls a single-speed fan with simple logic. This suits projects with fixed airflow design. It reduces system complexity during installation. It also lowers failure risk in daily operation.
(03) 2-pipe modulating valve control
This thermostat supports modulating valve control in 2-pipe systems. It adjusts water flow based on room temperature. This improves temperature stability in the room. It also helps reduce energy waste during operation.
If one is looking for the on/off valve control, this model can be referred to (please click → HTW-FC01-2P).
(04) Key lock function
The key lock function prevents users from changing settings freely. This is useful in public or rental spaces. It helps keep system settings consistent. It also reduces unnecessary maintenance work.
(05) Programmable function
The programmable function allows simple time-based temperature control. It helps match system operation with daily schedules. This reduces manual adjustments by users. It also improves energy efficiency in regular use.
Product Design and Display
(This section shows the appearance and display interface of this hvac thermostat model.)
Technical Specifications
(This section lists the key technical parameters of this hvac thermostat.)
| Parameter | Value |
|---|---|
| Power Supply | 24Vac, 50/60Hz |
| Current Load | Fan Relay 5A |
| Built-in Sensor | NTC3950, 10K |
| Temperature Accuracy | ±0.5°C |
| Set-Point Range | 5~35°C |
| Protection Class | IP20 |
| Warranty | 2 Year |
| Installation Box | EU round box or Standard 86x86mm Box |
Wiring Diagram
(This section provides the wiring diagram of this hvac thermostat in a typical FCU system.)
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 |
| 24 | Powered by 24V, or with 24V output for 0-10V valve |
| Example HTW-WF11-FC-xx: if xx = 2EN, it stands for a 3-speed fan, 2-pipe system with on/off valve control, external sensor function, and Modbus communication. Most sub-models are ready-made. Kindly contact us to confirm availability. | |
Project Fit & Customisation
(This section explains where this hvac thermostat fits in projects, its limits, and possible customisation options.)
This hvac thermostat is not suitable for complex BMS integration projects. It does not support communication protocols like Modbus or BACnet. It is also not designed for multi-speed fan systems. Projects needing remote app control or Wi-Fi should consider other models.
Despite these limits, we can support functional customisation. For example, communication modules or extra sensors can be discussed. Some hardware and software adjustments are possible based on project needs. Please feel free to get in touch with us for evaluation.
We also support OEM customisation for branding needs. Logo printing and label design can be arranged. Housing colour can be adjusted for project style. Packaging can also be customised based on your market.
Certificates 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
Q1: Is this thermostat suitable for all fan coil systems?
This hvac thermostat is designed for simple 2-pipe systems. It supports one-speed fan and modulating valve control. More complex systems may need different models.
Q2: Can it work with a building management system?
No, this model does not support communication protocols. It works as a standalone controller. For BMS projects, other models are recommended.
Q3: How accurate is the temperature control?
It uses an NTC sensor with good stability. The accuracy is within ±0.5°C. This is suitable for most room control needs.
Q4: Can external sensors be connected?
This model mainly uses the built-in sensor. External sensor support is not standard. Customisation can be discussed if required.
Q5: What is the minimum order and can we get samples?
We support sample orders for testing. The usual MOQ is 300 units. Smaller trial quantities like 100 units can be discussed.
Q6: How do we place an order and arrange shipping?
Please feel free to get in touch with us to confirm details. We will provide a PI after confirming requirements. Payment can be made by TT, PayPal, or Visa.
Q7: How long does production take?
Standard samples are usually ready within 7 days. Custom models may take 3 to 5 weeks. Bulk orders like 300 units usually need around one month.
Q8: What shipping methods are available?
We usually suggest courier delivery like DHL or FedEx. Air shipping takes about 7 days. Sea shipping takes around one month depending on location.
Need Help Choosing the Right Model?
If you are not sure which model fits your project, please feel free to get in touch with us. We are happy to help you check and choose.
Related Thermostat Models
For more details, please click here directly: Wi-Fi Thermostats | Modbus Thermostats | BACnet Thermostats
Final Note
In most HVAC projects, stable room control and simple operation are key goals. This model works as a basic hvac thermostat for fan coil and valve control. It helps maintain stable temperature and reduces daily maintenance work in practical use.
