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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.
https://sonoff.tech/product-review/tutorial/adapter-selection-guide/
Screen display | Introduction |
![]() | Window opening detection function
|
![]() | 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 " ![]() |
![]() | Child lock function Press "Middle button" for 3 seconds, then the screen will display " ![]() ![]() |
![]() | When heating is not needed in winter, turn knob counterclockwise (
|
![]() | Low battery (Battery needs to be replaced with a new one within 1 week) |
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.
When "" stops flashing, install the device to the valve interface.
If the screen displays "
" or "
", press the middle button and "
" will display again.
Short press the middle button, and " " will flash (Figure1).
Wait for about 5 seconds, and the device will display the initialization interface (Figure 2),
which means that debugging is completed.
The device can work with other gateways supporting Zigbee 3.0 wireless protocol Detailed information is in accordance with the final product.
In manual mode, turn the knob counterclockwise. When the screen displays "" press and hold the middle button for 3 seconds and the screen icon "
" flashes. Now the device enters Pairing mode, then open the App and add the device in the gateway homepage.
lf 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 "
" flashes when the screen shows "
".
The device supports auto mode and manual mode. Shortly press "Middle button" to switch between the two modes.
Auto mode:
When "" is displayed on screen, it means the auto mode is on (Picture 1),
Manual mode:
When "" disappears on screen, it means the manual mode is on (Picture 2).
Device pairing operation must be done in manual mode.
Model | TRVZB |
Input | 4.5V ![]() |
Battery model | 1.5V LR6 Alkaline AA Battery |
Wireless connection | Zigbee 3.0 |
Threaded connection | M30x1.5mm |
Temperature setting range | 4ºC-35ºC |
Working temperature | -10ºC~50ºC |
Working humidity | 5%-95% RH Non-condensing |
Color | White |
Casing material | PC |
Product dimension | 59.4x59.4x95mm |
Disconnection means | Type 1.B |
Pollution degree | 2 |
Rated impulse voltage | 500V |
Error code | Problem | Solution |
![]() | Abnormal temperature sensor | Contact after-sales staff |
![]() | Slow valve operation | Check installation Status and heating valve |
![]() | Excessively wide adjustment range | Check whether temperature controller is fastened |
![]() | Excessively small adjustment range | Check heating valve |
![]() | Battery runs out | Replace battery |
![]() | NO valve detected | Check whether valve is installed |
Press "Middle button" for a longer time and at the same time put batteries in, then the screen displays "" 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.
Service email: support@itead.cc
Website: sonoff.tech
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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