Posted by jtown on October 02, 2001 at 07:40:47:
In Reply to: Re: Boiler main cold water valve *Help* posted by Scott on October 01, 2001 at 13:59:45:
Be careful. If you put water main pressure on the heating system you could damage it. The pipe that blows water from the top of the boiler onto the floor is a safety relief valve to protect it and you. The pressure regulator on the line in may have a bail or lever that you lift to add water faster after a repair etc. The regulator adds slowly to have better control. Only "rapid fill" while watching the pressure gage and limit the pressure. Go upstairs and bleed air and then come back and add more. Bypassses are only for maintenance or to rapid fill if the auto feeder doesn't have that feature. You should have said where you have valves. Your water main comes to a split, the one side that goes to the boiler should have a shut-off valve in it and this should be tagged "By-Pass, Do not open except for maintenance" The other side goes through your pressure regulator and is the normal feed into the boiler piping. All shut-offs on this line should be open.