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  1. #1
    Join Date
    Jun 2008
    Posts
    5

    best 5 ton system for me

    I have a 1900 sf 2nd floor apartment in Brooklyn NY ductwork already installed. I need a central air cooling system with compressor outside and air handler in attic above apartment. because of limited hight the air handler has to lie down. I would appreciate advice as to the most cost effective system for my situation

    thanks

  2. #2
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,432

    Exclamation Direct eXchange with Variable Speed

    Quote Originally Posted by naftoli View Post
    I have a 1900 sf 2nd floor apartment in Brooklyn NY ductwork already installed. I need a central air cooling system with compressor outside and air handler in attic above apartment. because of limited height the air handler has to lie down.
    Split DX System with VS convertible AHU
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  3. #3
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,613
    5 ton for a 1900 sq ft apartment???????????????

  4. #4
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,432

    Talking What are neighbors for ?

    Quote Originally Posted by BaldLoonie View Post
    5 ton for a 1900 sq ft apartment???????????????
    He's a good guy !
    He can also provide A/C for a couple neighbors! !
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  5. #5
    Join Date
    Apr 2001
    Location
    Lowellville Ohio
    Posts
    144
    Quote Originally Posted by naftoli View Post
    I have a 1900 sf 2nd floor apartment in Brooklyn NY ductwork already installed. I need a central air cooling system with compressor outside and air handler in attic above apartment. because of limited hight the air handler has to lie down. I would appreciate advice as to the most cost effective system for my situation

    thanks
    General rule of thumb: 1 ton for each 600 sq/ft

  6. #6
    Join Date
    Mar 2007
    Location
    Myrtle Beach, SC
    Posts
    2,919
    Quote Originally Posted by PGPGSR View Post
    General rule of thumb: 1 ton for each 600 sq/ft
    That rule of thumb is for hacks! Do a true Manual J load calculation. Do not use a rule of thumb, that is another term for GUESS.

    My 2,000 sq ft house in Myrtle Beach, SC has (1) 2-ton system cooling it. Why would you use a bigger unit in a cooler climate. If you have lots of glass, your load may be higher, but why guess??????

    Do it right and do a real load calculation. Besides, a smaller unit will fit better.
    Remember, Air Conditioning begins with AIR.

  7. #7
    Join Date
    Apr 2001
    Location
    Lowellville Ohio
    Posts
    144
    Quote Originally Posted by Kevin O'Neill View Post
    That rule of thumb is for hacks! Do a true Manual J load calculation. Do not use a rule of thumb, that is another term for GUESS.

    My 2,000 sq ft house in Myrtle Beach, SC has (1) 2-ton system cooling it. Why would you use a bigger unit in a cooler climate. If you have lots of glass, your load may be higher, but why guess??????

    Do it right and do a real load calculation. Besides, a smaller unit will fit better.
    I agree....that's why I said GENERAL rule of thumb.

  8. #8
    Join Date
    Jun 2008
    Posts
    5

    which system

    Thanks Dan,

    Which brand and model do you recommend?

  9. #9
    Join Date
    Jun 2008
    Posts
    5

    5 ton?

    when the ductwork was put in 5 years ago they recommended 5 Ton plus most of the neighbours here have 4 or 5 ton systems in similler apartments. Is there a anyware here that i can show apartment layout and duct design?

  10. #10
    Join Date
    Mar 2007
    Location
    Myrtle Beach, SC
    Posts
    2,919
    For $50.00 you can download a 1 tim use copy of HVAC calc from this site and do your own. See the menu bar at the top of this web page.
    Remember, Air Conditioning begins with AIR.

  11. #11
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,432

    Exclamation Loads and design need to be specific to your apt & locale

    Quote Originally Posted by naftoli View Post
    when the ductwork was put in 5 years ago they recommended 5 Ton plus most of the neighbours here have 4 or 5 ton systems in similar apartments.

    Is there a anywhere here that I can show apartment layout and duct design?
    Send me ( see profile) a drawing and include window specs and then
    I can provide more specific guidance on equipment selection and energy cost.
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

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