valiant echomax pressure relief valve ?? help ?

hi dont touch that red thing. its a prv it opens when the boiler has been filed to much leting the water out tampering can cause it leak constantly. anyway the valve you are looking for is 2 grey knobs more near the front underneath u need to turn them both on to fill the boiler. download the vaillant pdf user instruction online it will show the valve. if this helps it should have like a silver flexi pipe linking the 2 knobs to identify it

kash
November 2012