Quick Summary

HTW-HT09-3ANV1 is a water heating boiler heating thermostat designed for water heating and boiler systems. It supports dual relay outputs and non-voltage dry contact control. The thermostat measures room temperature using an internal NTC sensor. This water heating boiler heating thermostat provides stable heating switching control.

This page explains how the water heating boiler heating thermostat works in projects. It introduces control logic, wiring reference and key technical parameters. Model configuration meaning and project adaptation options are also explained. Typical installation questions and practical usage information are included.

Key Functional Highlights

(This section explains the core control functions and their practical value.)

01. Dual Output Heating Control
This water heating boiler heating thermostat supports both relay output and dry contact control. This allows connection to different heating equipment types. It improves flexibility when used in mixed water heating or boiler systems. We have another related model HTW-HT09-3ANV3 which with WiFi function.

02. Stable Temperature Sensing
The thermostat uses an NTC sensor to measure room temperature. This provides stable and consistent temperature feedback. Accurate sensing helps maintain comfortable heating conditions.

03. Clear Display Interface
The VA screen provides clear temperature and status information. Users can easily read settings under different lighting conditions. This improves usability for daily operation and adjustment.

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	95~240Vac
Frequency	50/60Hz
Accuracy	±0.5°C or ±1°F
Sensor	NTC3950, 10K
Setpoint Range	5~35°C
Display Range	5~99°C
Installation	EU or Standard Electric Box Housing
Material	PC + ABS (Fireproof), IP20

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
NV	Boiler Heating, with Non-Voltage Dry Contact
1	1 = Standalone
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 thermostat is not suitable for systems requiring advanced communication protocols. It does not support Modbus or BACnet. Large building automation projects usually require communication-enabled thermostats.

The product is designed for indoor use only. It should not be installed in high humidity or strong interference environments. Outdoor or remote monitoring projects require different thermostat types.

Despite these limits mentioned above, functional adjustments may still be discussed. Control logic or interface behaviour may be modified based on project needs. OEM services such as logo printing and packaging customisation are supported.

Certifications

Certification documents for Swan Controls thermostats

Exhibition Moments

Swan Controls presenting thermostats at an international HVAC exhibition

Frequently Asked Questions

Can this water heating boiler heating thermostat work with both water heating and boiler systems?

Yes. This water heating boiler heating thermostat supports relay and dry contact outputs. This allows connection to water heating systems and boiler control circuits.

What type of sensor is used in this thermostat?

This water heating boiler heating thermostat uses an internal NTC sensor. It measures room temperature continuously and provides stable feedback for heating control.

Does this thermostat support BMS communication?

No. This model works as a standalone controller. Projects requiring system integration should choose models with communication protocols.

What is the minimum order quantity and can samples be provided?

Thermostat samples are available for evaluation. The usual minimum order quantity is about 300 units, though smaller quantities may be discussed.

How can I place an order?

Please contact us to confirm requirements. We will provide a proforma invoice. Payment methods include TT, PayPal and Visa. Terms support EXW, FOB and DAP.

How will the products be shipped?

Express delivery is normally recommended and takes about seven days. Air freight takes similar time, while sea freight normally requires about one month.

Need Support?

If you need help selecting the correct water heating boiler heating thermostat, please contact us. Our team can support your project selection and application needs. Or you can refer to below links:

Water Underfloor Heating Thermostat

Wired Boiler Heating Thermostat