Shelly BLU TRV Thermostatic Radiator Valve Head Setup Guide

Shelly BLU TRV Thermostatic Radiator Valve Head — SKU: 10421568373063

  • Tools required:
  • AA batteries (as specified by product tags)
  • Soft cloth or towel (to catch water and protect radiator finish)
  • Adjustable spanner or small wrench (for removing existing head, if required)
  • Set of valve adapters (only if your radiator needs an adapter; check what is supplied)
  • Small screwdriver (if required to open battery compartment or fit adapter)

  • Applications:
  • Shelly mobile app (for setup and scheduling) — if you prefer another integration, use the compatible smart‑home application that supports Shelly BLU devices
  • Smartphone or tablet with Bluetooth enabled

  • Before you start: Turn your central heating off and allow the radiator and valve to cool. Place a towel beneath the valve to protect the floor and to catch any small drips. Verify you have the correct adapter for your radiator valve: radiators use several TRV fitting standards, so confirm the adapter supplied or obtain the correct one before proceeding.
  • Remove the existing TRV head: Unscrew or unclip the existing thermostatic head by hand; use an adjustable spanner only if it is stiff. Hold the valve body steady to avoid twisting the pipework. Keep any small parts or adapters — you may need them to fit the Shelly BLU TRV.
  • Prepare the Shelly BLU TRV: Open the battery compartment and fit the required AA batteries, observing polarity markings. Close the compartment securely. Do not use damaged batteries. The device is indicated as battery powered by the product tags.
  • Fit the correct adapter: If your radiator requires an adapter, choose the matching one and fit it to the valve spindle as instructed by the adapter manufacturer. Ensure the adapter is seated squarely and is not cross‑threaded.
  • Attach the Shelly BLU TRV head: Slide or screw the Shelly BLU TRV onto the valve or adapter until it clicks or seats firmly. Do not overtighten; the head should be secure but not forced. Check that the valve spindle can move and that the TRV head is aligned correctly so the actuator can operate unobstructed.
  • Power up and place device near your phone: With batteries installed, place your smartphone within a few metres of the radiator and ensure Bluetooth is enabled on the phone. The product name includes "BLU" and the tags include "bluetooth", so Bluetooth is the expected local connectivity method for initial setup.
  • Open the Shelly mobile app and add the device: Launch the Shelly app (or the chosen compatible app). Use the app’s Add Device / Pair new device function and follow the on‑screen instructions. The app will typically scan for nearby Bluetooth devices and present the Shelly BLU TRV for pairing. If the app requests authorisation to use Bluetooth or location services, allow it to permit discovery.
  • Follow app pairing prompts: Complete any prompts to name the device, assign it to a room, and set an initial target temperature. If the app requests a firmware update, allow it to update the device when convenient. If pairing fails, check battery orientation, replace batteries if they are new but show low voltage, move the phone closer to the device and retry.
  • Test mechanical operation: From the app, change the target temperature or use a manual open/close control to confirm the valve moves and the radiator responds. Listen for actuator movement and visually confirm the valve pin moves in and out. Ensure the TRV head does not press on nearby surfaces or curtains.
  • Configure schedules and integrations: Use the Shelly app to set temperature schedules or enable any adaptive learning features the app offers. If you plan to integrate the TRV with a wider smart‑home system, consult that system’s integration steps within its app. Note: specific Wi‑Fi or cloud features are not detailed here; check the product documentation or app for those capabilities.
  • Final checks: Inspect the valve for leaks and ensure no parts were dropped into the radiator. Wipe away any water and confirm the towel is dry. Make sure the TRV head is accessible and the display or controls (if present) are usable.
  • Routine maintenance: Replace AA batteries as the app indicates low battery or per the device’s notification. Dispose of batteries according to local regulations. Keep the valve and head free from paint and debris to ensure reliable operation.
  • Troubleshooting: If the device does not pair, confirm Bluetooth is enabled, the phone is within range, and batteries are correctly installed. If the valve does not move, re‑check adapter fit and mechanical engagement with the valve spindle. For persistent problems, consult Shelly support or a heating engineer for mechanical compatibility checks.
  • Safety notes: This device is battery powered (AA batteries per tags). If you are unsure about mechanical removal of an existing valve head, or if you encounter water leaks, consult a qualified plumber. No mains electrical work is described or required for battery operation; if you intend to connect to any mains or high‑voltage system, that work must be performed by a trained electrician.