Vaconoff Smart WiFi Thermostat for Water Underfloor Heating

1. Introduction

This manual provides detailed instructions for the installation, setup, and operation of your Vaconoff Smart WiFi Thermostat (Model W89W-WIFI-3A). This thermostat is designed for controlling water underfloor heating systems, thermoelectric heads, and electric valves. It features WiFi connectivity for remote control via smartphone applications and voice control compatibility with Alexa and Google Assistant.

Please read this manual thoroughly before installation and use to ensure proper function and safety.

2. Safety Information

• Installation must be performed by a qualified electrician in accordance with local electrical codes.
• Always disconnect power at the circuit breaker before installing or servicing the thermostat.
• Do not install the thermostat in areas with excessive moisture or direct sunlight.
• Ensure the voltage and current ratings of your heating system are compatible with the thermostat (AC 100-240V, 50/60Hz, 3A).
• Keep the device away from children.

3. Package Contents

Verify that all items are present in the package:

• 1 x Vaconoff Smart WiFi Thermostat
• 2 x Mounting Screws
• 1 x English User Manual

4. Product Features

• Control Object: Specifically designed for water underfloor heating systems, thermoelectric heads, and electric valves.
• Smart Heating: Remote control via Tuya or Smart Life App.
• Voice Control: Compatible with Amazon Alexa and Google Assistant for convenient voice commands.
• Programmable Schedule: 7-day programmable heating schedule with 5+2, 6+1, and 7-day modes to optimize energy consumption.
• Digital Touch Screen: Clear and intuitive display for easy operation.
• Additional Functions: Temperature calibration, power-off memory function, antifreeze protection, and parental control (child lock).

5. Installation

5.1 Wiring Diagram

Refer to the diagram below for correct wiring connections. Ensure all connections are secure and properly insulated.

Image Description: This image displays two wiring diagrams for the Vaconoff Smart WiFi Thermostat. The left diagram shows connections for a "Connect Actuator" setup, indicating L (Live), N (Neutral), and terminals 1, 2, 3, 4, 5 for connecting NC (Normally Closed) and NO (Normally Open) actuators. The right diagram shows connections for a "Connect Valve" setup, with L, N, and terminals K, N, L for connecting a valve. Both diagrams show the thermostat's rear panel with terminal blocks and the corresponding external components.

• L & N: Connect to AC 100-240V power supply.
• Actuator Connections: For actuators, connect to terminals 1-5 as indicated for Normally Closed (NC) or Normally Open (NO) types.
• Valve Connections: For valves, connect to terminals K, N, L as indicated.
• Ensure the correct load (water underfloor heating, thermoelectric head, or electric valve) is connected.

5.2 Mounting the Thermostat

The thermostat is designed for standard wall mounting boxes. Refer to the dimensions below for proper installation.

Image Description: This image shows the physical dimensions of the Vaconoff Smart WiFi Thermostat. The front view indicates a width and height of 86mm. The side view shows a depth of 14mm for the visible part and 25mm for the recessed part. The rear view shows the mounting plate with screw holes spaced 60mm apart vertically and 50mm horizontally. A diagram of a suitable wall mounting box is also included, showing a circular box with screw holes for mounting.

1. Prepare a standard 86x86mm wall mounting box or a European 60mm round box.
2. Connect the wiring as per the diagram in Section 5.1.
3. Secure the thermostat's backplate to the wall box using the provided mounting screws.
4. Attach the front panel of the thermostat to the backplate.
5. Restore power to the circuit.

6. Setup

6.1 Initial Power-on and Display Overview

Upon first power-on, the thermostat display will illuminate. Familiarize yourself with the display elements:

Image Description: This image shows the Vaconoff Smart WiFi Thermostat's digital display with various elements labeled. Key labels include: "week" (top), "time" (top left), "Wi-Fi" (top right icon), "child lock" (padlock icon), "heating on" (wavy lines icon), "room temp." (large central number), "set temp." (smaller number next to "SET"), "periods" (icons at the bottom showing different house/person symbols), "mode" (bottom left icon), "function" (bottom left button), "clock" (bottom center button), and "power on/off" (bottom right button).

• Time & Day: Displays current time and day of the week.
• Wi-Fi Icon: Indicates Wi-Fi connection status.
• Room Temp: Shows the current ambient temperature.
• Set Temp: Displays the desired target temperature.
• Heating On: Icon indicates when the heating system is active.
• Child Lock: Padlock icon indicates child lock is active.
• Mode/Function Icons: Various icons for different operating modes and functions.

6.2 Wi-Fi Connection and App Pairing

To enable smart features, connect your thermostat to your home Wi-Fi network and pair it with the Tuya Smart or Smart Life application.

Image Description: This image shows the Vaconoff Smart WiFi Thermostat alongside a smartphone displaying the "My Thermostat" screen within a smart home application. Below the phone, logos for "Tuya Smart" and "Smart Life" apps are shown, indicating compatibility. The phone screen shows a manual mode with a large temperature display (26.5°C) and control buttons for switch, child lock, mode, and settings.

1. Download the "Tuya Smart" or "Smart Life" app from the App Store (iOS) or Google Play Store (Android).
2. Register or log in to your account.
3. Follow the in-app instructions to add a new device. Typically, this involves putting the thermostat into pairing mode (refer to the thermostat's on-screen instructions or quick start guide for specific steps, often by pressing and holding a button until the Wi-Fi icon flashes).
4. Select your 2.4GHz Wi-Fi network and enter the password.
5. Once connected, the Wi-Fi icon on the thermostat display will become solid.

7. Operating Instructions

7.1 Manual Mode

In Manual Mode, you can directly adjust the target temperature using the '+' and '-' buttons on the thermostat or via the app.

Image Description: This image shows the Vaconoff Smart WiFi Thermostat's digital display. The time is 16:30, and the current room temperature is 25.9°C. The set temperature is 26.0°C. A Wi-Fi icon is visible, and a house icon with a thermometer indicates heating. The bottom of the display shows various mode icons and control buttons.

• Press the 'Mode' button (often represented by a house icon or similar) to switch to Manual Mode.
• Use the '+' and '-' buttons to increase or decrease the desired temperature.
• The thermostat will maintain the set temperature.

7.2 Auto Mode (Programmable Schedule)

Set a personalized heating schedule for different times of the day and days of the week to optimize comfort and energy savings.

Image Description: This image shows the Vaconoff Smart WiFi Thermostat alongside a smartphone displaying the "working day setting" for "Auto Mode" in the smart home app. The app lists six programmable periods with specific times and target temperatures, such as Period 1 (06:00, 20°C), Period 2 (08:00, 16°C), Period 3 (11:30, 16°C), Period 4 (12:30, 16°C), Period 5 (17:00, 24°C), and Period 6 (22:00, 16°C). The thermostat display also shows icons representing different periods.

• Access the scheduling function through the Tuya Smart or Smart Life app.
• Choose from 5+2 (weekdays + weekend), 6+1 (weekdays + one weekend day), or 7-day (individual days) programming modes.
• Set desired temperatures and times for up to six periods per day.
• The thermostat will automatically follow the programmed schedule.

7.3 Voice Control

Integrate your thermostat with Amazon Alexa or Google Assistant for hands-free control.

Image Description: This image shows a woman smiling while holding boxes, with a Vaconoff Smart WiFi Thermostat visible on the wall in the background. Below the thermostat, two smart speakers (likely Amazon Echo Dots) are present. The text "Vice Control" is at the top, with speech bubbles showing "Alexa, set temperature to 24°C." and "Okay." Below, logos indicate compatibility with Google Assistant, Amazon Alexa, and Yandex Alice.

• Ensure your thermostat is connected to the Tuya Smart or Smart Life app.
• Enable the "Tuya Smart" or "Smart Life" skill/action in your Alexa or Google Home app.
• Discover devices. Your thermostat should appear.
• Use voice commands such as:
  • "Alexa, set [Thermostat Name] to 22 degrees."
  • "Hey Google, what's the temperature in [Thermostat Name]?"
  • "Alexa, turn on [Thermostat Name]."

7.4 Child Lock (Parental Control)

Activate the child lock to prevent unauthorized changes to the thermostat settings.

• The child lock can typically be activated or deactivated by pressing and holding a specific button combination on the thermostat (refer to the quick start guide) or through the mobile app.
• When active, a padlock icon will appear on the display, and physical buttons will be unresponsive.

7.5 Temperature Calibration

If you find the displayed room temperature inaccurate, you can calibrate it through the thermostat's settings menu or the mobile app.

• Access the advanced settings menu on the thermostat or in the app.
• Locate the temperature calibration option.
• Adjust the offset value to match a known accurate thermometer in the same location.

7.6 Antifreeze Function

The antifreeze function helps protect your heating system from freezing by automatically activating heating if the temperature drops below a set threshold (usually 5°C).

• This function is typically enabled by default. Check the advanced settings in the app or on the thermostat to verify or adjust the antifreeze temperature.

8. Maintenance

• Cleaning: Wipe the thermostat's screen and body with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Firmware Updates: Periodically check the Tuya Smart or Smart Life app for available firmware updates to ensure optimal performance and security.
• Power-off Memory: The thermostat retains its settings even after a power outage, so no re-configuration is needed after power restoration.

9. Troubleshooting

10. Specifications

11. Warranty and Support

For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official Vaconoff website. Keep your purchase receipt as proof of purchase.

If you encounter any issues not covered in this manual, please contact customer support for assistance.