replacing expansion vessel?

[sexpanther]

hi guys im replacing the expansion vessel on my worcester 9.24 rsf is there a how to guide on changing expansion vessels? or is it just as simple as it looks depressurize the system (not with the prv) replace it top up the water and job done? will i need to bleed the ev to make sure the one side is full og water and if so how??

thanks in advance

 

[penfold46]

A Manufactures EV will be pre-charged to the correct pressure. 20 min job on that old Worcester. Drain boiler, undo the communiaction pipe, remove old and fit new. Its on a bracket that you loosen off.

Your lucky you dont have a CDI.... thats a mornings work.

P46.

EDIT: sexpanther

 

[sexpanther]

thought so thanks it says 'do not open valve nitrogen escapes' on the ev so im guessing it precharged

 

[kevplumb]

yes