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750mv honeywell valve

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HEATON
HEATON Member Posts: 118
in Thermostats and Controls
on a vs820a1047: is polarity important on the placement of leads fr th generator to the valve? Also is 600 mv enough to function? new valve, 600 fr generator,pilot looks ok on inpinge, valve wont open!! frustrated over the hill svc tech still working, John THANX

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  • Paul48
    Paul48 Member Posts: 4,469
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    GO

    to the top of the page....Resources.......The Library......Tim McElwain's Closet.
  • HEATON
    HEATON Member Posts: 118
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    ok for 1 question

    charts are great for the performance troubleshoot but still need to know about polarity? thanx
  • Tim McElwain
    Tim McElwain Member Posts: 4,621
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    Polarity does not matter

    By the way open circuit should be 750 millivolts and no less than 540.
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