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1. Attach the correct adaptor to the base of the Radiator Valve. The image below shows the M30 adaptor being fitted.
   

2. Remove the battery cover by compressing the catch at the bottom of the valve, and hinge the cover up and away from the valve.
   
   

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3. Place 2 x AA batteries in the valve, a temperature should appear on the screen.

   Info
   The batteries should be positioned as per the diagram in the back of the valve, with the batteries facing opposite directions.

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4. Press and hold the middle button for 3 seconds until an 'M' appears on the screen, then press the middle button once more. The 'M' will begin to flash on the screen, the valve will buzz and the plunger in the underside of the valve will retract. The valve is now in Mount Mode.

   Note
   The Valve must be in mount mode when being attached to the radiator.

   

5. Remove the existing TRV head (this is the part which turns and normally has the number 1-5 on it to regulate the temperature) from the radiator. Usually this requires loosening a nut between the TRV head and the base (the part the water flows through).

6. Screw the valve down onto the radiator if using the M30 x 1.5mm adaptor, or attach the RA adaptor & valve onto the radiator & tighten up the grub screw.
    

   Info
   If using the Danfoss RA adapter make sure that the grub screw is done up very tight as the adapters can work loose over time, which stops the Radiator Valve being able to shut off the flow of water to the radiator, causing the radiator to heat up when it is supposed to be off.

   
   

7. Press and hold the middle button for 3 seconds until the valve starts to buzz and a temperature appears on the screen.
   

   Info
   Sometimes when you press a button on the valve it can take 30 seconds for the screen to react. This is normal as the valve may be communicating with the Genius Hub at the time.