Quick Summary
The HTW-WF01-16A2 Electric Heating Thermostat with Modbus is designed for electric underfloor heating systems. It switches heating cables through L and N voltage outputs. The device runs on a 100–240 Vac power supply. Built-in sensing and an external floor sensor support stable and safe temperature control.
This page explains how the Electric Heating Thermostat with Modbus works in HVAC installations. It introduces control logic, wiring reference, and key parameters. Modbus communication and system integration are also described. OEM and ODM options for the Electric Heating Thermostat with Modbus are also available.
Key Features
(The core control functions and their practical value)
1. Electric Floor Heating Load Switching
The Electric Heating Thermostat with Modbus controls electric floor heating cables up to 16A. L and N terminals provide direct voltage switching. This structure is common in residential underfloor heating systems.
2. Modbus RS485 System Integration
The Electric Heating Thermostat with Modbus supports Modbus communication through an RS485 interface. Building management systems can read temperature data remotely. This allows central control and monitoring in HVAC projects.(If you’re looking for wifi, click here)
3. Programmable Heating Schedule
The thermostat supports programmable daily heating periods. Users can set temperature levels for different time blocks. This helps keep rooms comfortable while reducing energy consumption.
4. External Floor Temperature Sensor
An external floor sensor can monitor floor temperature during heating operation. This prevents overheating of floor materials. It also improves safety in electric underfloor heating installations.
Product Design and Display
(The product’s dimensions and the interface layout)
Technical Specifications
(The key parameters for reference and project confirmation)
| Parameter | Value |
|---|---|
| Power Supply | 100–240 Vac, 50/60 Hz |
| Output Load | 3A for water/boiler heating type; 16A for electric floor heating type |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm junction box or EU round box |
| Protection Class | IP20 |
| External Sensor | Supported |
| Warranty | 2 years |
Wiring Diagram
(The wiring reference diagram for correct installation)
Model Code Guide
(What configuration the model code refers to)
| Heating series | xx stands for |
|---|---|
| 3A | Water Heating, with NC+NO+COM output terminals |
| 16A | Electric Underfloor Heating, with L+N line voltage output terminals + External Sensor |
| NV | Boiler Heating, with Non-Voltage Dry Contact |
| 1 / 2 / 3 | 1 = Standalone, 2 = Modbus, 3 = Wi-Fi |
| Example HTW-WF01-xx | If xx = 16A3, it stands for electric floor heating with external sensor support and Wi-Fi function. Most sub-models are ready-made. Kindly contact us to confirm availability. |
Project Fit & Customization
(Where the product can be used, its limits, and OEM/ODM options)
This Electric Heating Thermostat with Modbus is designed for electric floor heating systems. It switches heating loads directly through voltage terminals. The thermostat is not suitable for water valve control systems. Installations that require WiFi control should use other thermostat models.
Despite these limits mentioned above, ODM cooperation may still be discussed. Communication parameters or control behaviour may be adjusted for projects. Our engineers usually review heating system requirements before confirming suitable technical solutions.
OEM customisation is also supported for brand projects. Logo printing on the thermostat panel can be arranged. Packaging design and product labels can also be customised. These options help the Electric Heating Thermostat with Modbus match different branding requirements.
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. What heating systems can this Electric Heating Thermostat with Modbus control?
It is designed for electric underfloor heating systems. The thermostat switches heating cables through L and N voltage output terminals.
Q2. Does the thermostat support Modbus communication?
Yes. The Electric Heating Thermostat with Modbus supports RS485 Modbus communication for integration with building management systems.
Q3. Is installation compatible with standard wall boxes?
Yes. The thermostat fits standard 86×86 mm junction boxes and EU round wall boxes widely used in heating installations.
Q4. What is the minimum order quantity and are samples available?
Sample units are available for evaluation. The typical minimum order quantity is around 300 pieces, though smaller trial quantities may be discussed.
Q5. How can we place an order?
Please contact us with your requirements. After confirmation we provide a proforma invoice. Payment supports TT, PayPal, Visa and similar methods.
Q6. How are the products usually shipped?
Express door-to-door delivery normally takes about seven days. Air freight takes similar time. Sea freight usually requires over one month.
Need Support?
If you need help selecting an Electric Heating Thermostat with Modbus for your project, please contact us. Our team can assist with wiring review and system integration.
Related Thermostat Models
More product details, please click directly:
Water Heating Thermostat
Gas Boiler Heating Thermostat
