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Question for Timmie

S Ebels
S Ebels Member Posts: 2,322
I fired up a boiler with a 4205 Honeywell gas valve on it today and it ran one burner cyce and would not fire again.

I had adjusted manifold pressure to 2.5WC" per mfr spec during the first burner cycle. When it tried to fire again, I heard the gas valve click but no fire. I checked pressure ahaed of the valve and it went off the scale on my digital manometer (which reads to 35") I would consider this a serious problem for natural gas pressure wouldn't you?

My question is did this abnormally high incoming pressure lock up the 4205.

I shut off the gas at the meter and will call the utility tomorrow.


  • You could be on a 2lb or 5lb

    system which would be well over the capacity of your digital manometer. I can't seem to find that valve so I am not sure what it has for operating charcteristics. I need a little more info as to what kind of system and what is the total gas train on the unit?

    If you want you can give me a call as I am up watching the ball game. 401-437-0557
  • S Ebels
    S Ebels Member Posts: 2,322
    What ball game?

    HAR HAR!!! Be with you shortly
  • S Ebels
    S Ebels Member Posts: 2,322
    Timmie FYI

    The valve is a VR 4205P2055 Honeywell 120V Step opening model. I had the gas company out this AM and to put it mildly, the guy about freaked out when he put his gauge on the line. His equipment read up to 10PSI and it PEGGED THAT!! Needless to say the regulator and the meter itself are now changed. I would say the fact that the Honeywell held back that kind of pressure and actually fired normally (once) before failing is a testimony to the safety and integrity of the valve.

    The building this was under construction during most of the summer and the utility guy thought it was possible the regulator may have been hit with something. There were smudge marks on it that looked as though something heavy may have hit it. Could be, as I personally watched the "building" crew launch the old iron radiators out of a couple third story windows myself.

    Thanks for the help last night. Good game huh?
  • You just never know

    what you are going to find. By the way do you think the valve will need changed? I would not take a chance myself I would change it.

    Tonight is the night that history is made Go Red Sox.
  • mark_40
    mark_40 Member Posts: 65
    change !

    the valve ... no way is it rated for THAT kind of overpressure ... the v4055 is a much heavier built valve .. that is only rated at 2.5 psi Emergency pressure !
  • S Ebels
    S Ebels Member Posts: 2,322

    Already changed. The old one had this wierd rattle inside of it..............
This discussion has been closed.