Results 1 to 12 of 12
  1. #1
    Join Date
    Feb 2007
    Location
    Harrisburg Pa.
    Posts
    9

    are Mammoth Rooftop units built well?

    Hello HVAC Afficianodos-

    I am new to the site... I found HVAC-TALK by looking for reviews on Mammoth rooftop units. It looks like there are plenty of well experienced techs on this site. I currently have 4 Mammoth RTU's on order for a new building. They start at the 2 1/2 ton unit and go through 7.5, 10 and 12.5 tons all units are coming with the gas option and have economizers. These were the brand specified by the distributor that we use for all of our residential purchases. Any thoughts? thanks Mark-

  2. #2
    Join Date
    Jan 2007
    Location
    California
    Posts
    328

    Talking

    i take care of 2 of the 60 ton Rooftop Mammoth (CustomAire) boxcars.. they were installed in 1983 and are still running today.. while they are now really old.. they work very well.. the only problems i have had have been due to age..


  3. #3
    Join Date
    Feb 2007
    Location
    Harrisburg Pa.
    Posts
    9

    Johnson Controls interface...

    We are looking to control these with the Johnson controls web based Metasys control system for monitoring and control. Do you know of any conrol glitches between these manufacturers?

  4. #4
    Join Date
    Jan 2007
    Location
    California
    Posts
    328

    Talking

    sorry, i use Honeywell Pneumatics for control..

    call or email Mammoth and Johnson.. they should tell you of any issues..

    http://www.mammoth-inc.com/

    http://www.johnsoncontrols.com/Metasys/



  5. #5
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,832

    mammouth

    I take care of 2 mammoth units, 160 ton and 200 ton.
    They both have hitachi screws and top of the line accessories.
    I love them.
    but ours are controlled by automated logic.
    I am no controls guy but have heard great things about metasys.
    Frank
    I WILL SELL WORK,GENERATE BUSINESS, GO GET NEW CUSTOMERS!
    YOU SHUT THE HELL UP AND QUIT RUNNING YOUR MOUTH!

  6. #6
    Join Date
    Apr 2004
    Posts
    20

    Mammouth

    We have several of them from 160 to 275 ton, great machines!! Sorry but none on Johnson. Most are on either Honeywell or Alerton, dont think you will have any problems though.

  7. #7
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,168
    Something sticks in my head that Mammoth doesn't make little guys, just huge custom units. I sorta think they have a marketing agreement with Nordyne and Nordyne light commerical go under the Mammoth name. And that also brings up the next question, who makes it? Someone correct me if I am wrong however.

    I sure didn't see Mammoth's website mention smaller units.

    Off the brand subject, heard this week that Rheem & McQuay are teaming up. Rheem will provide McQuay with light commercial to 25 ton and McQuay will provide Rheem with 30-60 ton. Later this year.

  8. #8
    Join Date
    Jun 2005
    Location
    South Jersey
    Posts
    1,461
    INMHO:

    Mammoths in my experience are some of the most old school, well built, tough as nails pieces of equipment I have ever had the pleasure to work on. I would damn sure take them over any McQuay or Trane RTU any day.

    That haveing been said: If you are not prepared to maintain them properly, on a regular basis, then you might as well buy the cheapest POS you can find because they do require proper care and feeding like any thorobred.
    It Is What It Is

  9. #9
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,832

    bustawrench1

    I like your passion for hvac equipment!
    What do you think of seasons 4 units?
    I WILL SELL WORK,GENERATE BUSINESS, GO GET NEW CUSTOMERS!
    YOU SHUT THE HELL UP AND QUIT RUNNING YOUR MOUTH!

  10. #10
    Join Date
    Jun 2005
    Location
    South Jersey
    Posts
    1,461
    Don't see too many of them.

    I mostly see Mc Quay, Trane, Mammouth and a few old Nesbitts.
    It Is What It Is

  11. #11
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,168
    Yes, I've been informed that Nordyne is making the small Mammoth branded light commercial goodies.

  12. #12
    Join Date
    Feb 2007
    Location
    Harrisburg Pa.
    Posts
    9

    Nordyne as Mammoth...

    Thanks men for all of the comments on Mammoth. If Nordyne is making the small units do the previous comments still hold true? Are rebranded Nordyne units getting the same thumbs up? -Mark

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