Posted by Dominic on July 19, 2001 at 09:24:42:
In Reply to: Re: Bleeding the system posted by Harold Kestenholz - Hydronic Network on July 19, 2001 at 08:24:18:
Thank you, I did try to fill it thru the drain plug, you obviously know your stuff because the relief valve did dump.
WHERE IS THE PRV? Let me describe my system:
the supply valve has a small cap on it as well (water comes out of it if I unscrew it)the supply goes directly to the expansion thank and I see no valve on it.
On the stem there is a manual drainage valve with a butterfly screw and the slot point downward
(what is the butterfly for?).
At the very bottom there is a drainage valve coming out of the boiler itself and higher than that, at the side, there is the relieve valve (which dumped when pressure was too high as above)
That's all.
Thanks again