Introduction

SONOFF Zigbee Smart Water Valve

User Manual

https://sonoff.tech/en-us/blogs/news/adapter-selection-guide

Remove the old thermostatic faucet and check if a valve adapter is needed, then scan the QR code or enter the URL to select the valve adapter.

With SONOFF Thermostatic Radiator Valve, you can control and reach the temperature you want more accurately. It allows remote control and timing. The window opening detection function helps you save energy and avoid additional energy waste. The matching adapters can be installed on almost any valve.

Remote Control

Smart Timing

Precise Temperature Control

Historical Data Record

Child Safety Lock

Open Window Detection

 

① Middle button

  • When the screen displays “OF”, press and hold for 3 seconds: the device enters pairing mode (pairing lasts for 3 minutes).
  • Press and hold for 3 seconds: Child Lock ON/OFF (activate or deactivate the child lock).

② Rotary knob

③ Auto

④ Heating

⑤ Target temperature

⑥ Internet connection

  • Flash: Device is in pairing mode

⑦ Low battery

⑧ Configuration key (under the dismountable shell)

  • Press & hold for 3 seconds: switches the screen display orientation by 180°.

⑨ Heating valve interface

⑩ Battery case latch

Screen display and introduction

 

Screen display

 Introduction
width="100"

Window opening detection function

The device will automatically identify whether the window is opened after you enter the app interface to enable the window opening detection function. When cold air is detected and the temperature drops more than 1.5 °C within 4.5 minutes, the

window opening function will be enabled. Alongside the enabling of the function, the screen displays ” width="100"” and the temperature is set at 12 °C.

Note: After the window opening function is enabled, the following operations will disable the window opening function:

1. Temperature setting operation on App or device.

2. Temperature rises by more than 1.5℃ within 4.5 minutes.

3. No operation on App or device within 30 minutes.
width="100"

Anti-calcification function

The temperature control valve will perform a routine calcium removal operation at 12:00 am every Monday to prevent calcification of the valve. During the operation, the screen will display “width="100"“.
width="100"

Child lock function

Press “Middle button” for 3 seconds, then the screen will display ”  width="100"“, with child lock enabled. After the screen is locked, press “Middle button” for 3 seconds, then the “ width="100"” on the screen will disappear, with child lock disabled.
width="100"

When heating is not needed in winter, turn knob counterclockwise (width="100") to the ” width="100"” icon, then the device valve is closed and the antifreeze function is enabled.

Note: After the antifreeze function is enabled when the room temperature is below 5 °C, the function will be enabled to prevent the radiator from being damaged by freezing. The function will be disabled when the room temperature exceeds 7 °C.
width="100"

Low battery

Battery needs to be replaced with a new one within 1 week.
Specification
Product name
Thermostatic Radiator Valve
Model

TRVZB

MCU

EFR32MG22C224F512GN32

Rating

4.5V ⎓ (3×1.5V AA Batteries)

Battery model

1.5V LR6 Alkaline AA Battery

Zigbee

IEEE 802.15.4

Threaded connection

M30x1.5mm

Temperature setting range

4℃-35℃

Net weight

157g

Working temperature

-10℃~50℃

Working humidity

5~95% RH non-condensing

Color

White

Casing material

PC

Product dimension
59.4×59.4x95mm
Disconnection means

Type 1.B

Pollution degree

2

Rated impulse voltage

500V

Certification

CE/RoHS

Installation

Preparing Before Scanning the QR Code

1.Scanning the QR Code

Press the battery compartment latch while taking out the shell

Open the eWeLink App and scan the QR code on the device

2.Power on the device

Load the batteries

After powering on, the screen displays “width="100"” and flashes

3.Device installation

When “width="100"” stops flashing, install the device to the valve interface.

 If the screen displays ” width="100" ” or ”  width="100" “, press the middle button and “width="100" ” will display again.

4.Device debugging

Short press the middle button, and ” width="100"” will flash (Figure ①). Wait for about 5 seconds, and the device will display the initialization interface (Figure ②), which means that debugging is completed.

Add a Device

Download the eWeLink App & Add SONOFF Zigbee gateway

Please download the “eWeLink” App from Google Play Store or Apple App Store.

Matched Gateways

Recommended SONOFF gateway models: ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost

Other compatible SONOFF gateway models: ZBDongle-P, ZBDongle-E, Dongle-M, Dongle-PMG24, Dongle-LMG21

Make sure the Zigbee gateway is updated to the latest version.

Add the device to Zigbee Gateway

Device pairing operation must be done in manual mode.

In manual mode, turn the knob counterclockwise. When the screen displays “width="100" “

Press and hold the middle button for 3 seconds

Check the Network Indicator width="100" Status (Flashing)

Select “Add Device”

Select Zigbee gateway

Wait until the addition is done

If the device fails to pair with the gateway within 3 minutes after it enters Pairing mode, the device will exit the pairing status. If you want to pair again, please press and hold the middle button for 3 seconds until the icon ” width="100" ” flashes when the screen shows ” width="100" “.
Temperature control mode

The device supports Auto mode and Manual mode. Shortly press “Middle button” to switch between the two modes.

Auto mode:
When “ width="100" ” is displayed on screen, it means the auto mode is on

Manual mode:

When “ width="100" ” disappears on screen, it means the manual mode is on

Screen display rotation

Press the battery compartment latch while taking out the shell

Press“Configuration key” for 3 seconds to change the screen display direction

Error codes, problems and solutions
Error codes Problems Solutions
width="100" Abnormal temperature sensor Contact aftersales staff
width="100" Slow valve operation Check installation status and heating valve
width="100" Excessively wide adjustment range Check whether temperature controller is fastened
width="100" Excessively small adjustment range Check heating valve
width="100" Battery runs out Replace battery
width="100" No valve detected Check whether valve is installed

 

Factory reset

Press “Middle button” for a longer time and at the same time put batteries in, then the screen displays“ width="100" ”and blinks for 3 seconds. After that, the device is reset to factory settings and is automatically restarted.

All previous settings will be removed after the device is reset to factory settings.