Quick Summary
The HTW-MT08-FC-2W WiFi Smart Room Controller is designed for 2 pipe fan coil HVAC systems that need stable room temperature control and remote operation. It supports heating and cooling control, fan coil output, motorized valve control, WiFi app control, and clear VA negative screen display.
This page helps HVAC contractors, distributors, OEM buyers, and project engineers check whether this Smart Room Controller suits their project. It covers system compatibility, WiFi control value, wiring, technical specifications, buyer selection points, customization options, and common ordering questions.

WiFi Smart Room Controller for 2 Pipe Fan Coil Systems
The HTW-MT08-FC-2W is a WiFi Smart Room Controller for 2 pipe fan coil systems. If you need 4 pipe system please check here:HTW-MT08-FC -4W. It is used to control indoor temperature by managing fan coil operation and motorized valve output according to heating or cooling demand.
Compared with a basic standalone thermostat, this model adds WiFi remote control. This is useful for apartments, offices, rental spaces, hotel-style rooms, and light commercial projects where users or property managers want easier temperature adjustment through a mobile app.
| Item | Recommended Check Point |
|---|---|
| System Type | 2 pipe fan coil unit system |
| Control Function | Heating, cooling, fan coil, and motorized valve control |
| Smart Function | WiFi app control for remote operation |
| Power Supply | 95–240VAC standard; 24V can be customized |
| Installation | 86×86 mm box or EU 60 mm round box |
| Buyer Fit | Suitable for HVAC contractors, distributors, wholesalers, smart home suppliers, and OEM projects |
Key Functional Highlights
(This section explains the main control functions and their value in real fan coil HVAC projects.)
(01) WiFi Remote Control
This Smart Room Controller supports WiFi control through a mobile app. Users can adjust temperature remotely, check room settings more conveniently, and reduce manual operation. For apartments, offices, and rental properties, WiFi control can improve daily comfort and management efficiency.
(02) 2 Pipe Fan Coil System Control
The controller is designed for 2 pipe fan coil systems where heating and cooling share one water circuit. This makes it suitable for common FCU room control projects that need simple and stable heating/cooling logic.
(03) Fan Coil and Motorized Valve Control
The controller can manage fan coil operation and motorized valve output together. When room temperature changes, it helps control airflow and water flow according to system demand, supporting stable room comfort and better HVAC response.
(04) VA Negative Screen Display
The VA negative screen gives a clear and modern display effect. Users can read temperature, mode, and operating status easily in different indoor lighting conditions. This improves user experience in residential and light commercial rooms.
(05) Black and White Appearance Options
The product is available in black and white designs. This helps distributors and OEM buyers match different interior styles, local market preferences, and project decoration requirements.
(06) Wide Voltage Input
The standard 95–240VAC power supply helps match many common installation environments. If a 24V version is required for a specific project or market, customization can be discussed based on quantity and technical requirements.

Product Design and Display
(Place the product display image here to show screen layout, front design, touch buttons, and black/white appearance options.)
The HTW-MT08-FC-2W uses a simple and modern indoor design. The touch buttons are easy to operate, and the display provides clear visual feedback. The appearance is suitable for homes, apartments, offices, and light commercial rooms where both function and visual fit matter.

WiFi Smart Room Controller vs Standard FCU Thermostat
For many projects, the choice depends on whether remote control is needed. A standard thermostat is enough for simple room control. A WiFi Smart Room Controller is more suitable when users want app control, remote adjustment, or smart home style operation.
| Project Need | Standard FCU Thermostat | WiFi Smart Room Controller |
|---|---|---|
| Local room temperature control | Suitable | Suitable |
| Remote app control | Not suitable by default | Recommended |
| Apartment or rental property use | Suitable for basic use | Better when remote adjustment is needed |
| Simple installation without network setup | Recommended | Requires WiFi setup |
| Smart control selling point | Limited | Stronger for retail and OEM markets |
2 Pipe Fan Coil Controller Selection Guide
Before selecting a room controller, confirm whether the system is 2 pipe or 4 pipe. This model is designed for 2 pipe systems. If the project uses separate heating and cooling coils, another fan coil thermostat model may be more suitable.
| Project Requirement | Recommended Choice | Reason |
|---|---|---|
| Heating and cooling share one water circuit | 2 pipe Smart Room Controller | Matches common 2 pipe FCU control logic |
| Remote mobile control is needed | WiFi Smart Room Controller | Allows app-based temperature adjustment |
| Project requires BMS communication | Modbus thermostat model | This WiFi model is mainly for smart app control, not BMS communication by default |
| Project requires 24V power | Customized version | 24V can be discussed based on project requirement and order quantity |
Technical Specifications
(Place this table before wiring and inquiry guidance. It helps engineers and buyers check compatibility before sending a request.)
| Parameter | Value |
|---|---|
| Model | HTW-MT08-FC-2W |
| Product Type | WiFi Smart Room Controller |
| System Type | 2 pipe fan coil unit system |
| Control Function | Fan coil and motorized valve control |
| Smart Function | WiFi remote control by mobile app |
| Power Supply | 95–240 V AC; 24 V available upon customisation |
| Fan Relay | 5A resistance / 3A inductive |
| Valve Relay | 3A resistance / 1A inductive |
| Sensor | NTC3950, 10K |
| Set Range | 5–35°C |
| Accuracy | ±0.5°C |
| Display Range | 5–99°C |
| Ambient Temperature | 0–45°C |
| Humidity | 5–95% RH |
| Power Consumption | <1.5W |
| Installation | 86×86 mm box or EU 60mm round box |
| Protection Level | IP20 |
| Shell Material | PC + ABS fireproof material |
| Warranty | 2 years |
Wiring and Installation
(Place the wiring diagram here. This section should appear before customization information because installers need to check fan, valve, power, and WiFi setup conditions first.)
The controller connects to fan coil units and motorized valves. It supports heating and cooling output wiring and WiFi connection for mobile app control. Before installation, confirm system type, wiring terminals, relay load, power supply, and installation box size.

Buyer Selection Checklist
Before ordering this WiFi Smart Room Controller, confirm the following points. This helps reduce wrong model selection, wiring mismatch, app control issues, and after-sales questions.
| No. | Check Point | What to Confirm |
|---|---|---|
| 1 | System Type | Confirm it is a 2 pipe fan coil system |
| 2 | Control Output | Confirm fan coil and motorized valve control requirements |
| 3 | WiFi Need | Confirm whether remote app control is required |
| 4 | Relay Load | Confirm fan and valve loads do not exceed relay ratings |
| 5 | Power Supply | Standard 95–240VAC, or custom 24V if needed |
| 6 | Installation Box | 86×86 mm or EU 60mm round box |
| 7 | Market Requirement | Logo, colour, label, packaging, app requirement, certification, and manual language |
Common Selection Mistakes
Choosing a WiFi model when no network setup is available. WiFi control is useful, but the installation site should support stable wireless connection. For simple local control only, a non-WiFi fan coil thermostat may be enough.
Using a 2 pipe controller for a 4 pipe system. This model is designed for 2 pipe fan coil systems. If the project has separate heating and cooling coils, a 4 pipe fan coil thermostat should be selected.
Ignoring fan relay and valve relay load. Fan and valve loads should match the relay rating. Overloading the relay may affect long-term operation and reliability.
Assuming WiFi means BMS communication. WiFi app control is not the same as Modbus or BACnet BMS integration. If the project needs building management system communication, a Modbus or BACnet thermostat should be checked.
Project Fit and Customization
(Place this section after technical and wiring information. It helps project buyers decide whether to send an inquiry.)
This Smart Room Controller is suitable for residential and light commercial HVAC systems using 2 pipe fan coil units. It is often selected for apartments, offices, hotel-style rooms, rental properties, and smart HVAC retrofit projects where WiFi remote control is useful.
It is not the best choice for 4 pipe fan coil systems, EC fan 0–10V control, or projects requiring Modbus or BACnet communication as a standard function. For these applications, another fan coil thermostat model should be selected.
For OEM and project-based orders, logo printing, colour, labels, packaging, interface details, manual language, and some control logic can be discussed. A 24V version can also be customized depending on project requirements and order quantity.
For distributors, wholesalers, HVAC contractors, smart home suppliers, and OEM buyers, please share system type, voltage, wiring requirement, WiFi/app control need, installation box size, colour preference, certification needs, and expected quantity. We can help check whether this model is suitable before ordering.
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
Q1: Does this Smart Room Controller support WiFi control?
Yes. The HTW-MT08-FC-2W supports WiFi app control, allowing users to adjust settings remotely through a mobile device.
Q2: Is it suitable for 2 pipe fan coil systems?
Yes. This model is designed for 2 pipe fan coil systems where heating and cooling share one water circuit. It is suitable for common FCU room control projects.
Q3: Can it control the fan coil and motorized valve together?
Yes. This Smart Room Controller can control fan coil operation and motorized valve output together, helping maintain stable room temperature in heating or cooling mode.
Q4: Does it support programmable operation?
Yes. It supports scheduling, which helps reduce manual adjustment and improve energy efficiency in daily use.
Q5: Can it be used for 4 pipe fan coil systems?
This model is mainly designed for 2 pipe systems. If your project uses separate heating and cooling coils, a 4 pipe fan coil thermostat should be checked instead.
Q6: Does WiFi mean it supports Modbus or BMS communication?
No. WiFi app control is different from Modbus or BACnet communication. If your project requires BMS integration, please check our Modbus or BACnet fan coil thermostat models.
Q7: Can the voltage be customized?
The standard power supply is 95–240VAC. A 24V version can be customized depending on project requirements and order quantity.
Q8: What installation box does it support?
It supports 86×86 mm wall box or EU 60mm round box installation. Please confirm the installation standard before ordering.
Q9: What is the MOQ and can I get samples?
The typical MOQ is 300 units. Samples are available for testing, and smaller pilot orders can be discussed depending on project needs.
Q10: How can we place an order?
Please share your requirements with us first. We will provide a PI for confirmation. Payment options include TT and PayPal, with EXW, FOB, or DAP terms available by discussion.
Q11: How long is the lead time?
Standard samples usually take about 7 days. Custom orders usually take 3–5 weeks depending on details. Bulk orders usually need about one month.
Q12: What shipping options are available?
Express delivery usually takes about 7 days. Air freight is similar, while sea shipping usually takes about one month or longer depending on destination.
Need Help Choosing the Right Model?
If you are selecting a Smart Room Controller for a project, please feel free to get in touch with us. We can help check system type, WiFi control needs, voltage, valve output, wiring, installation box, and OEM requirements before order confirmation.
Related Thermostat Models
More product details, please click directly:
Fan Coil Thermostat | Smart WiFi Thermostat |Modbus Thermostat
Final NoteThe HTW-MT08-FC-2W WiFi Smart Room Controller is built for 2 pipe fan coil HVAC systems that need stable heating and cooling control, fan coil operation, motorized valve output, WiFi remote control, and clear room temperature display.
For HVAC contractors, smart home suppliers, distributors, wholesalers, and OEM buyers, the best next step is to confirm system type, WiFi control need, voltage, relay load, installation box, colour preference, certification needs, and quantity before ordering. This helps reduce selection mistakes and improves project delivery reliability.





