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The Pressure is on...Not!

J Matthers_2
J Matthers_2 Member Posts: 140
in THE MAIN WALL
But No...

A follow up for those who read my earlier post. I put a pressure gauge and an air nipple on my buffer tank and pressurized to 15 PSI. Opened my second floor valves first and got good flow to the second floor. I then opened each other zone starting with the farthest and got everything going with no sign of air in the system and gave the buffer tank one more shot of pressure to bring it back to 15 PSI with all zones going. Place heated up in no time. Sat down to dinner with friends in the new house and was happy. Then it struck me, since there is no bladder in the buffer tank, what’s to keep the air pressurizing the system from going into solution and then being removed by the air separator? Will it maintain the 15 PSI or revert to atmospheric pressure? I think that question was answered when I checked the system this morning and the pressure was down and I had no flow to the second floor again.

Questions: Will utilizing an expansion tank charged to 15 PSI eliminate this problem with the air gap in the expansion tank? Will that air gap become a vacuum as defused air is removed from the water via the air eliminator? In the Summer when the geo unit is used for chilling water for the hydro coils in my Unico air handler in the attic, will the process of chilling the water reduce the pressure in the system to a point I won’t get the water up to the attic 24 feet up?

Comments

  • J Matthers_2
    J Matthers_2 Member Posts: 140
    Diagram

    Forgot to post a diagram
  • J Matthers_2
    J Matthers_2 Member Posts: 140
    Diagram

    Forgot to post a diagram
  • J Matthers_2
    J Matthers_2 Member Posts: 140
    Diagram

    Wanted to post a diagram Second try
  • Dan Peel
    Dan Peel Member Posts: 431
    Air elimination

    It's a fairly common error to have air elimination attached to a system with no bladder in the expansion tank. For best control of results change out the tank to a precharged tank of appropriate size and get away from the game of adding and removing air altogether. Enjoy..... Dan

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  • Unknown
    Unknown
    You might just have to

    change the diagram to the .jpg format .
  • J Matthers_2
    J Matthers_2 Member Posts: 140
    It was

    > It's a fairly common error to have air

    > elimination attached to a system with no bladder

    > in the expansion tank. For best control of

    > results change out the tank to a precharged tank

    > of appropriate size and get away from the game of

    > adding and removing air altogether. Enjoy.....

    > Dan

    >

    > _A

    > HREF="http://www.heatinghelp.com/getListed.cfm?id=

    > 174&Step=30"_To Learn More About This Contractor,

    > Click Here to Visit Their Ad in "Find A

    > Contractor"_/A_



    a "catch-22" I had pressure before I put in the air eliminator on the primary and hy-vents on the second story remote manifolds but I had trapped air causing no flow. Now I have no air, no pressure and no flow. A badder tank it is. Is this the way the "Dead Men" learned?
  • J Matthers_2
    J Matthers_2 Member Posts: 140
    It was

    a "catch-22" I had pressure before I put in the air eliminator on the primary and hy-vents on the second story remote manifolds but I had trapped air causing no flow. Now I have no air, no pressure and no flow. A badder tank it is. Is this the way the "Dead Men" learned?
  • Dan Peel
    Dan Peel Member Posts: 431
    I'm sure

    I think the Dead Men always knew. It's just the rest of us who have to find out the long way around. G'luck.....Dan

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
This discussion has been closed.

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