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  1. #1
    Join Date
    Oct 2012
    Location
    Torrington CT
    Posts
    84
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    looking for info on liebert units

    i am looking for the install docs and trouble shooting docs on a Liebert unit

    M#mmd36e7ahsdg
    S#0930n187381

  2. #2
    Join Date
    Jul 2007
    Location
    Mount Airy, MD
    Posts
    7,282
    Post Likes
    Thread relocated to "Tech to Tech"

  3. #3
    Join Date
    Dec 2001
    Location
    Phoenix, Az
    Posts
    1,257
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    I carry a gun because I'm too young to die, and too old to take an ass whoopin

  4. #4
    Join Date
    Oct 2012
    Location
    Torrington CT
    Posts
    84
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    thank you i was looking for the unit that has heat, ac, hum, and dehum all in one unit. i must have gotten the wrong unit m# the unit is around i think 10 tons

  5. #5
    Join Date
    Dec 2001
    Location
    Phoenix, Az
    Posts
    1,257
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    Is it a Challenger? MMD36 is a 3 ton mini mate.
    I carry a gun because I'm too young to die, and too old to take an ass whoopin

  6. #6
    Join Date
    Apr 2011
    Location
    Coastal Maine
    Posts
    947
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    What your describing is a CRAC unit (minus the heat). Most of Lieberts stuff is designed for Data Center specific applications (with a few exceptions).

  7. #7
    Join Date
    Oct 2012
    Location
    Torrington CT
    Posts
    84
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    The unit i worked on has 2 compressors in the indoor unit and hum and i think a hot gas bypass to heat a little and a remote condenser on the roof. i was having a hum problem where the hum was low it was at 23% when it was needing to be at 30% i talk with tech support and said the float was not i right. I just don't think that was the problem and the M# S# i got off my CO computer in the office had 2 different units in there

  8. #8
    Join Date
    Oct 2012
    Location
    Torrington CT
    Posts
    84
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    i was looking around on the internet and it looks like this type Liebert DS Precision Cooling System,

  9. #9
    Join Date
    Apr 2011
    Location
    Coastal Maine
    Posts
    947
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    Ok, now we are getting somewhere. I have a lot of stuff on the DS. I will round it up and put up a link this evening.

  10. #10
    Join Date
    Oct 2012
    Location
    Torrington CT
    Posts
    84
    Post Likes
    thank you

  11. #11
    Join Date
    Jan 2013
    Posts
    5
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    I think you have ir bulbs and a pan. Just a few things to check out, these humidifiers are simple and they work awesome. Set point deadband, the bulbs, the limit switch on the bottom of the pan and the float if it trips the drain is plugged.

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