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  1. #1

    Most efficient AC unit available for Central Florida

    Hello,
    We are in the process of building a 60'x120'x16' metal building for our personal shop in Central Florida. We plan on insulating and cooling to 76-80 degrees. We won't heat in the "winter". The shop will be located on a wooded acreage. The property currently only has single phase power, but we might consider adding three phase based on cost to install. We estimate we will need a 10-15 ton unit (not set in stone). So if we only have single phase, will need to run 2 or 3 units.

    What is the most efficient cooling unit we can install? Geothermal Heat Pump? Split-Unit? What model/brand? Dual Stage? We are more focused on efficiency then cost. A FHP ES 2 Stage Geothermal and a Daikin Split-Unit that is SEER 26 (even though it only goes to 15K BTU) has caught our eye. Also, we are very DIY so would like to do as much of the work ourselves (running geothermal tubing ourselves for example)

    Thanks

  2. #2
    Join Date
    Aug 2012
    Posts
    2,675
    You can reasearch just about any type of equipment on google.
    My name is TooCoolforschool and I am a chronic over charger.

  3. #3
    Join Date
    Jan 2013
    Location
    San Gabriel Valley, California
    Posts
    32
    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

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    Last edited by jpsmith1cm; 01-28-2013 at 09:49 PM. Reason: non AOP member

  4. #4
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    7,455
    The climate master tranquility inverter geothermal unit is the best on the market I believe at around 40EER with variable capacity. You would probably need 2 or 3 though and they are pricey.

  5. #5
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,760
    fengshvac

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

    You can find the rules for posting and qualifications here.

    Additional infractions may result in loss of posting privileges.

  6. #6
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,406
    Lennox has some package units in the 10-12.5-15 ton range which operate at higher SEERS than most package units... nothing like geo though. Plan on 3 phase unless you go with residential sized geo.

    Now here is a question: Will this be an open shop, or divided rooms? If it is rooms, then you might look at a multi-head mini setup... like Daiken or Mitsubishi city. Can get higher tonnage with good SEERS.
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  7. #7
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,317
    Depends on what your doing in the shop, and how many people. 15 tons may not be be near enough. A load calc should be done.
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