AAVs - why do they fail so much?

[jase158]

I put this to Honeywell when on course and they said "AAV's are solely made to help with filling the system" they are not designed for being left open.

 

[Ermintrude]

Aye balls. Is that why mi tell u to leave open.

 

[jase158]

don't shoot the messenger!! but seriously the boiler cover cant be taken off by non GSR engineers but should not be left open, Honeywell say leave shut and MI say leave open, how conflicting!!

 

[Ermintrude]

don't shoot the messenger!! but seriously the boiler cover cant be taken off by non GSR engineers but should not be left open, Honeywell say leave shut and MI say leave open, how conflicting!!

I cap prv with a 1/2 nut and close all Aav just to be safe

 

[jase158]

I cap prv

I hope your joking or being sarcastic!!

 

[Ermintrude]

Never joke about prv. If you don't cap it right it can cause all sorts if bother.

 

[jase158]

do you mean something else? if you cap the "pressure relief valve" the system will not relieve pressure when there is a problem and potentially explode, so hopefully you don't "cap the PRV"

 

[Bunker]

do you mean something else? if you cap the "pressure relief valve" the system will not relieve pressure when there is a problem and potentially explode, so hopefully you don't "cap the PRV"

Corse he's joking

 

[MarkOil]

Are you joking? I went to a leaking PRV today and capped it :S shouldn't I of done that?

 

[kimbo]

Is this a wind up