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Embassy Boiler, AXIA 29E (cosmogas)

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steve_25
steve_25 Member Posts: 36
in THE MAIN WALL
Boiler water pressure issues , is there a gasket on mechanical connection at the onboard , pancake style expansion tank . Would like to isolate to check tank air charge. Water side ,  Fill pressure 15 lbs., when burner fires , within a few seconds 30 lbs. and relief does its job , burner off back to 15 lbs.  any experience.

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  • icesailor
    icesailor Member Posts: 7,260
    Expansion Tanks:

    They'll be putting external Extrol type tanks on these boilers to solve this problem. Get a #30 tank and connect it to the system with a double hose connection. If the problem stops, you have a leaky tank.

    Another expensive cost cutting idea gone expensive.
  • icesailor
    icesailor Member Posts: 7,260
    Expansion Tanks:

    They'll be putting external Extrol type tanks on these boilers to solve this problem. Get a #30 tank and connect it to the system with a double hose connection. If the problem stops, you have a leaky tank.

    Another expensive cost cutting idea gone expensive.
  • kcopp
    kcopp Member Posts: 4,688
    Just did this....

    I had this issue w/ the same make/ model. Drained the boiler and disconnected the tank. Simple union. Added 15psi air through schreader valve back in.  It has been good for a month. You can get the replacement tank.
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