Results 1 to 5 of 5
  1. #1
    Join Date
    Jan 2004
    Posts
    1,174

    Need Bryant Economizer help

    Ok guys, thrown into a job via national accounts that have all Bryant units on the roof, no literature but they have economizer board with 2- 9 volt batteries on them, I turn the outdoor controller on the economizer down but the damper doesn't move, units won't heat or cool so I know it is an economizer issue.Anyone have troubleshooting literature on these and are the boards junk, I turned the damper worm gear by hand and it moves back to one position so motor moves.

  2. #2
    Join Date
    Nov 2004
    Posts
    210
    how about more info?model/serial #. is it a separate econo board?
    AIRFLOW IS CRITICAL

  3. #3
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
    Posts
    3,707
    Man I haven`t seen one of those in years end switches and all huh.

  4. #4
    Join Date
    Aug 2002
    Location
    manitowoc wisconsin
    Posts
    4,943
    The boards for those are so costly you should install new micrometal econmizers & forget fixing them.
    Take your time & do it right!

  5. #5
    Join Date
    May 2006
    Posts
    16
    Jumpering blue and gray on the economizer molex plug will get you mechanical cooling. The two 9 volt batteries were to shut the damper in the event of a power failure. I agree with the previous post. Too costly to repair.
    Go to mechanical cooling(fan cycle,crankcase htr.,etc.) or reinvent the wheel.

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