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Thread: Alerton VAV Tux

  1. #1
    Join Date
    Jul 2002
    Location
    Bellevue WA
    Posts
    82

    Alerton VAV Tux

    I have a problem with 3 Alerton VAV Tuxes:

    There is a checkbox on the graphic called "Emergency Close". I believe it's DO08. It's always checked on these 3 tuxes. When I uncheck the checkbox, it checks itself again in a second or two. I've tried to find something in the DDC program that's doing it, but no success.

    The tuxes are slaved, but I have others that are slaved where this doesn't happen.

    Any ideas?

  2. #2
    Join Date
    Jan 2007
    Location
    Eastern Canada
    Posts
    5
    Is there a VAV subroutine in the APEX DDC that may be writing to that DO?

  3. #3
    Join Date
    Jul 2002
    Location
    Bellevue WA
    Posts
    82
    Quote Originally Posted by Suds View Post
    Is there a VAV subroutine in the APEX DDC that may be writing to that DO?
    I assume that's whats happening, I think the DDC program is the only thing that can override me. I'm not too sharp on Alerton DDC, but I tried searching the program for both the tux number and "DO08" with no luck.

  4. #4
    Join Date
    Jan 2007
    Location
    Eastern Canada
    Posts
    5
    Typically the only way to turn the emerg open and close DO's on and off is via the display. Otherwise DDC somewhere must be writing to it. Try using the "cross-referencing" feature to find "ZT-DO-8" in the APEX DDC. ZT is a zone tux point used in APEX sub-routines.

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