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  1. #14
    Join Date
    Dec 2007
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    Quote Originally Posted by mccann View Post
    I got ahold of Lennox support. They said the motor manufacturer does not recommend twinning, so units should be replaced.
    I spoke with Jackson Systems, who sell the iO-Universal-Twinning kit, same one Lennox sells. The guy said they twin variable ECM motors all the time without problem.
    Alas, I'm going to give the customer all the information I have.
    While "they do it all the time", that does not mean it is working correctly!!!

    There is a reason mfrs DON'T approve of it. Most likely the mfr, NOT the control company, has tested the equipment in this configuration. The controls may activate the equipment, but I'll bet that is all the controls company can confirm.

    Personally, I would not approve of this set up.
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  2. Likes Tommytools, ugottabkidnme liked this post
  3. #15
    Join Date
    Apr 2018
    SW Ohio
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    Customers only think of their systems in terms of comfort & operating cost so good luck convincing them a problem exists if they don't have a complaint of their own...

    Sent from my SM-G900V using Tapatalk

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