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  1. #1
    Join Date
    Aug 2008
    Location
    San Clemente, CA
    Posts
    1,188

    12.5 ton Mammoth RTU replacing a Train

    2001 yr built Train with multiple refrigerant leakage in both R-22 circuits. Unit has operated in cooling practically nonstop from day one. Manufacturing business with a huge heat load inside machine shop, gas heat is not hooked up, no need. Shop has a total of 32.5 tons of a/c keeping it cool. I have to say, this is a very well constructed RTU.



    New Mammoth install


    White roof - needed shades




    Inventor/Manufacturer:
    KoppLift™ Hand Truck Lifting Bar
    http://www.amazon.com/shops/JohnGKoppLLC
    Video
    http://youtu.be/FsSViwAEz7A

  2. #2
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,084
    Looks like the new unit has a heat section as well.


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  3. #3
    Join Date
    Oct 2012
    Posts
    3,571
    Nice looking unit, I've never heard of Mammoth before.

    Look at that control panel. I wish they where all that simple. If that new unit was a trane it would be another story......

  4. #4
    Join Date
    Aug 2008
    Location
    San Clemente, CA
    Posts
    1,188
    Yes, we took down the Train OEM thermostat control and installed a Honeywell 2 stage cooling WiFi Focus Pro, customer just loves that he can monitor temps and control the schedule, alerts, etc from his phone or computer. The heating section will never be hooked up, no need for it.
    John
    Inventor/Manufacturer:
    KoppLift™ Hand Truck Lifting Bar
    http://www.amazon.com/shops/JohnGKoppLLC
    Video
    http://youtu.be/FsSViwAEz7A

  5. #5
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,040
    Do you think you would have slightly more airflow if unit was electric heat model and remove the strips vs the pressure drop across the HX? Just thinking out loud

  6. #6
    Join Date
    Aug 2008
    Location
    San Clemente, CA
    Posts
    1,188
    CA does not allow elect strip in our state, only heat pump with back-up strip. I was going for the simplicity of strait A/C. Indoor blower is 3HP belt drive.
    Inventor/Manufacturer:
    KoppLift™ Hand Truck Lifting Bar
    http://www.amazon.com/shops/JohnGKoppLLC
    Video
    http://youtu.be/FsSViwAEz7A

  7. #7
    Join Date
    Jun 2009
    Location
    Ontario, Canada
    Posts
    1,029
    has not heard of mammoth brand before... is it rebranded something else? I wish I'm smart enough to set up a tent on the roof for install.... lol. I will now.
    Parts Changer Extraordinaire
    ------------------------------------------------------
    Have tools and gauges, will travel.

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  8. #8
    Join Date
    Aug 2008
    Location
    San Clemente, CA
    Posts
    1,188
    Quote Originally Posted by blitz View Post
    has not heard of mammoth brand before... is it rebranded something else? I wish I'm smart enough to set up a tent on the roof for install.... lol. I will now.
    We purchased this unit from our Maytag distributor (Nordyne). It is connected to that family of products. The tent was good, take a look at the salt lines on Mick's tee shirt. Should give you an idea of the heat and humidity that day. The white roof didn't help ether as it was reflecting the heat right back at us.

    John
    Inventor/Manufacturer:
    KoppLift™ Hand Truck Lifting Bar
    http://www.amazon.com/shops/JohnGKoppLLC
    Video
    http://youtu.be/FsSViwAEz7A

  9. #9
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,098
    Mammoth makes big stuff. Like the 240 ton packaged units on the Mall of America. Mammoth and Nordyne share the same parent so they started making some 5-20 ton light comm units sold by Nordyne distributors and called Mammoth.

    Sent from my HTC VLE_U using Tapatalk 2

  10. #10
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,855
    I just tore apart some 40 ton water to air units. They wouldn't fit in the building

  11. #11
    Join Date
    Jun 2001
    Location
    Moore, Oklahoma, United States
    Posts
    4,222
    Quote Originally Posted by JKopp View Post
    CA does not allow elect strip in our state, only heat pump with back-up strip. I was going for the simplicity of strait A/C. Indoor blower is 3HP belt drive.
    Are you allowed to install with NO heat at all? Can you order the unit as a straight cool w/o heat strips?

  12. #12
    Join Date
    Jan 2005
    Location
    steeler nation
    Posts
    2,067
    i never saw a mammoth that small. i usually see them 50 or over.
    IV IV IX

    use your head for something other than a hat rack.......Gerry

  13. #13
    Join Date
    Feb 2013
    Posts
    620
    I believe they both are part of NorTek or some company under the same umbrella. Anyway, how are your experiences with those Mammoth branded Light Commercial products?

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