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Hydrolevel VXT question

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delcrossv
delcrossv Member Posts: 742
in Strictly Steam
On a VXT, if I set it for 1 gallon, does that mean it fills until the LWCO is covered and then adds an additional gallon?
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.

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  • Jamie Hall
    Jamie Hall Member Posts: 23,280
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    I believe it adds 1 gallon -- more or less.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Gordodelcrossv
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,519
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    You can set it for 1,2,3,4 or 5 gallons. When the water comes up to the probe level and your set for 1 gallon it adds 1 gallon above the probe set for 2 it adds 2 gallons etc.


    How much you set it for depends on the physical size of the boiler,
    delcrossv
  • Hap_Hazzard
    Hap_Hazzard Member Posts: 2,846
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    EBEBRATT-Ed said:

    How much you set it for depends on the physical size of the boiler,

    It depends on how far below the water line the LWCO probe is. Some (mostly older) boilers didn't put the primary probe tapping in the most appropriate place.
    Just another DIYer | King of Prussia, PA
    1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-24

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