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- 22 Oct 2004
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water is leaking from safety overflow @3 bar.have re set the safety valve,topped up to .7 bar bled rads fired back up,runs up to 3bar after 16 mins, blows water out @3bar again.have been advised to re charge to 14psi the expansion vessel, undid cap on the top of it ,and pushed in the air valve needle, water spurts out of it.Have been advised to discharge pressure from system thru safety valve, hold it in open position,turn off ch,flow and return valves to rads,apply footpump to expansion vessel to re charge to 14 psi.set at 14psi close safety valve,open flow return to rads,repressurise to .7bar,bleed rads, fire system up.Is this procedure correct?
I assume that there should be no water where you should be pressurising with air,and the expansion vessel has had it .Can one be mounted externally if it needs replacing, as its an off the wall job to get to change the existing expansion vessel, or is it something else, as the safety valve only lets water out at the correct pressure. Thanks in anticipation.
I assume that there should be no water where you should be pressurising with air,and the expansion vessel has had it .Can one be mounted externally if it needs replacing, as its an off the wall job to get to change the existing expansion vessel, or is it something else, as the safety valve only lets water out at the correct pressure. Thanks in anticipation.