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  1. #1
    Join Date
    Sep 2010
    Posts
    28

    FX-PCV1620 Zone Setpt for SA Zone Stat

    I am having a problem with a new installation using the FX20 and the SA bus zone stat for the PCV1620 VAV controller. The problem I am having is when I adjust the zone stat in the space, the setpoint changes, but when I adjust the setpoint on the workstation the set point changes for one update then goes right back to the setting on the zone stat. I was thinking the way I hoped it worked was whichever the last set point change, would be what was entered into the zone stat set point. Either from stat or workstation. Has anyone ever ran across this problem, that could point me in the right diection to correct this problem?

  2. #2
    Join Date
    Jun 2009
    Location
    StL, MO
    Posts
    581
    Here is a link to a recent discussion on just the subject.
    http://hvac-talk.com/vbb/showthread.php?t=872422
    UA LU 562

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