Quick Summary
HTW-WF11-3A1 is a water heating thermostat designed for indoor water heating systems. It measures room temperature and switches heating output through relay control. External sensor support allows flexible temperature measurement positions in engineering installations.
This page explains the functions and practical control logic of the water heating thermostat. It also provides wiring reference, key technical parameters, and model code configuration explanation. Typical project questions and possible customisation options are also included.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
1. Water Heating Control
The water heating thermostat measures room temperature and switches the heating circuit through a relay output. When the measured temperature drops below the setpoint, heating is activated automatically. This control logic helps maintain a stable indoor temperature during normal heating operation.
If one requires a water heating thermostat featuring Wi-Fi app control, one may refer to this model instead (HTW-WF11-3A3).
2. External Temperature Sensor
This water heating thermostat supports the connection of an external temperature sensor when required. This allows engineers to place the sensor in a location that more accurately reflects the room temperature. It improves sensing reliability when the thermostat installation position is limited.
3. Programming Function
The programming function allows users to define different temperature periods during the day. The heating operation automatically follows the configured schedule. This helps maintain comfortable temperature conditions while reducing unnecessary heating time.
4. Time Display
The interface includes a clear time display together with operating status information. Users can easily check the thermostat’s running condition during daily use. This simple interface improves usability in residential or project environments.
Display
(This section shows the product’s dimensions and the interface layout.)
Specifications
(This section lists the key parameters for reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 100–240 VAC, 50/60 Hz |
| Output Load | 3A for water and boiler heating |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm junction box or EU round box |
| Protection Class | IP20 |
| Warranty | 2 years |
Wiring
(This section provides the wiring reference diagram for correct installation.)
Guide
(This section explains 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-WF11-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
(This section explains where the product can be used, its limits, and OEM/ODM options.)
This water heating thermostat is not designed for BMS integrated control systems. Standalone models do not include communication protocols such as Modbus or BACnet. Projects requiring remote monitoring or mobile app control may require other thermostat models.
Despite these limits mentioned above, functional customisation can still be discussed. Communication protocol integration or control logic adjustments may be evaluated based on project requirements. Engineering feasibility normally depends on quantity and development scope.
OEM cooperation is also supported for market branding and product presentation. Customers may request logo printing, colour adjustment, label design, and packaging changes. Our team can discuss suitable OEM options according to project needs.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1. What heating system does this water heating thermostat control?
This thermostat controls water heating systems through relay switching. It measures room temperature and activates heating output automatically when the temperature falls below the setpoint.
Q2. Can an external temperature sensor be connected?
Yes. This water heating thermostat supports an external temperature sensor connection. This helps improve temperature measurement accuracy when the thermostat installation location is not ideal.
Q3. Is this thermostat suitable for building management systems?
No. HTW-WF11-3A1 is a standalone thermostat and does not support communication protocols such as Modbus or BACnet used in building management systems.
Q4. What is the minimum order quantity, and can samples be provided?
Sample units are available for evaluation. The usual minimum order quantity is around 300 units, although smaller trial quantities may sometimes be discussed.
Q5. How can we place an order?
Please contact our team first. After confirming requirements, we will provide a proforma invoice. Payment methods include TT, PayPal, and Visa, with EXW, FOB, or DAP terms.
Q6. How are the thermostats normally shipped?
Courier delivery is commonly recommended and usually takes around seven days. Air freight also takes about seven days, while sea shipping normally requires one month or longer.
Need Support?
If you need assistance selecting the right water heating thermostat for your project, please contact us. Our team can help review application details and provide practical installation advice.
