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I need help trying to find what I have on my hands with this system,it looks like a steam system with main steam vents but the radiators don't have any vents on them.The radiators and main vents are Traine.(see pics)It has a presuretrol and a low water cut off on it.HELP!!!


  • old vapor system

    looks like you have an old trane vapor system, with an ancient vaporstat [i think] already in place to keep the pressures low. first, i would change the main vents for gorton#2's, and put a good low pressure gauge on the same pigtail as the controller. you can then verify the low pressures needed. next a copy of "the lost art of steam heating" so you can begin to understand how your system works, and why there are no vents on the rads.


    just verify that the lwco works, and do a meter clocking, at the least, to show whether the burner is somewhat in adjustment.--nbc
  • Mike Kusiak_2
    Mike Kusiak_2 Member Posts: 604
    Love the decorations!

    I guess it must be the ladies model boiler.

    Especially like the metal plate decorated with flowers to hide the riser out the top!
  • Steamhead
    Steamhead Member Posts: 15,660
    It's a Trane Orifice Vapor system

    and the orifices are cast into the convector elements. You need to keep the pressure real low with this system, to keep the steam out of the dry returns.

    I'd vent the steam main faster than the dry return, to make sure the steam fills the main first before rising to the convectors.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
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