Quick Summary
The HTW-WF17-5A Wifi Water Heating Thermostat is designed for water heating systems. It provides stable control through relay output terminals. WiFi connection allows remote access and scheduling. The device supports daily use and improves comfort with consistent temperature control.
This page explains how the Wifi Water Heating Thermostat works in HVAC systems. It introduces key functions, wiring reference, and main parameters. Installation and application notes are included. OEM and ODM options for the Wifi Water Heating Thermostat can also be discussed.

Key Features
(This section explains the main control functions and their value in HVAC systems.)
1. Water Heating Control Output
The Wifi Water Heating Thermostat provides a 5A output. It controls valves or pumps in water heating systems. NC, NO, and COM terminals allow flexible wiring.
2. Standard Relay Output Design
The thermostat uses NC, NO, and COM terminals. This supports different system configurations. It helps ensure stable control in HVAC projects.
3. Programmable Temperature Scheduling
The Wifi Water Heating Thermostat supports daily scheduling. Users can define multiple time periods. Each period can have a different temperature setting.
4. Multi-Language App Support
The mobile app supports 47 languages. This helps global users operate the thermostat easily. It improves user experience in different markets.
5. External Sensor Protection
The thermostat supports connection with an external temperature sensor. The sensor continuously monitors the heating system temperature. This protection helps prevent overheating and ensures safe and stable operation.
6. Wifi Remote Control
The Wifi Water Heating Thermostat connects to a mobile app. Users can adjust temperature and schedules remotely. This improves convenience and energy management.

Product Design and Display
(The thermostat appearance and interface layout to fully grasp the display effect and performance of the thermostat in real-world use.)


Technical Specifications
(Key parameters for system confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 95~240Vac or 24V AC/DC |
| Output Load | 5A water heating; 16A electric heating |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm or EU 60mm round box |
| Protection Class | IP20 |
| External Sensor | Supported |
| Warranty | 2 years |
Wiring Diagram
(This section provides wiring reference for installation.)

Model Code Guide
(This section explains the model code structure.)
| Heating series | xx stands for |
|---|---|
| 5A | Water heating with NC+NO+COM output |
| 16A | Electric heating with L+N output |
| NV | Boiler heating with dry contact |
| Example | WF17-5A supports water heating with WiFi function |
Project Fit & Customization
(This section explains usage and customization options.)
The Wifi Water Heating Thermostat is designed for residential water heating systems. It supports stable temperature control and remote access. The device fits modern smart home projects.
ODM cooperation is available. Control logic and interface can be adjusted. Engineers review requirements before confirmation.
OEM services are supported. Logo and packaging can be customised. This helps match different branding needs.
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 systems can this Wifi Water Heating Thermostat control?
It controls residential water heating systems using relay outputs.
Q2. Does it support WiFi control?
Yes. Users can adjust temperature through a mobile app.
Q3. Does it support an external sensor?
Yes. The sensor helps improve safety and temperature accuracy.
Q4. Is installation easy?
Yes. It fits standard wall boxes and supports common wiring.
Q5. What is the minimum order quantity?
MOQ is about 300 units. Samples are available.
Q6. How to place an order?
Contact us to confirm requirements. We will issue a PI.
Q7. How long is the lead time?
Standard models ship in about 7 days. Custom orders take longer.
Q8. How are products shipped?
Express, air, or sea shipping options are available.
Need Support?
Contact us for product selection and configuration advice.
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