No pressure at all

Jack_7

I cut the pipe in order to add one more baseboard to the loop ( which has two loops in my house and working fine before I make alternation). The pressure goes down to zero and never come back to the point it used to be. I also stupidly pressed down the valve on the top of the reserve tank. How can I get the pressure back? is the reserve tank no mroe good?

ScottMP

Jack ?

Did you drain the system before you did this work ?

Did you shut-off the electricty before you did this work ?

This is a fairly easy job for some one who is experienced in this, but if you are not, you can cause quite a bit of damage to your system, home and more importantly your family.

How about some more information about what you have done.

Scott

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Jack_7

I didn't drain the system before the cut but I did turned off the electric power. I cut the pipe between the drain valve and return line ( this is the loop goes to second floor) I soldered the addition baseboard to the cut off ( one end connect to the drain valve and the orther end to the return line. Right after the pipe had been cut off, I heard the hissing sound came out of the opening. After I finished the job, I turned on the power switch and the boiler fire up. There is no heat in 1st and 2nd floor so I looked at the pressure gauge and found there is no reading (zero psi). Then, I used a screw driver to push the release valve of the reserve tank and the air came out just like car's tire flatted. I turn the power switch on and off many times. When switch is on, I open the drain valve a little bit so there is water came out. ( both loops at same time). when boiler is firing, the water stop. When tempture reached 190F, the boiler stops but thers is no heat in the rooms. I did not heard the pipes bangging as usual.

ScottMP

Jack

I know this is not what you want to here but I suggest you call a proffesional.

You may have fired the boiler with no water in it. When you cut the pipe to install the new baseboard there should have been water under preasure which would have needed to be drained. You have released air from the expansion tank and this needs to be re-charged back to equal the preasure that the system has. You now have air in the loops of baseboard that needs to be bleed out.

I believe that this work is not something that should be done while getting advice from a website. There are way to many other varibles that come into play and again you could cause ( or may have allready ) damage to your system.

Call a plumbing or heating contractor to get your system back on line. Check the Find A Contractor feature on this website for someone in your area if you don't have someone locally.

Scott

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Jack_7

Thanks, Scott. I will take your advice. Thanks!