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  1. #1
    Join Date
    Jul 2014
    Location
    florida
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    What is the return connected to?

    The big return with the grill on it that air from house gets sucked into .....what exactly does it go to?
    .I tried to look on line but every picture seemed to have a furnace and I don't even know exactly what a furnace is.But I know I don't have one. I think it is what people in north use for heat?I just have a heat strip.

    And do these numbers look normal? Thanks.
    Here are the numbers from June 23 from a//c well visit.

    dry bulb=92
    liq line psg=320
    liq line F=15 or 75 cant tell handwriting
    act sub cool=12
    reg sub cool=12
    vapor line psig=150
    vapor line F=60
    act super heat=12
    req super heat=12
    act comp amps=7.2
    rated comp amp=2.8
    hru pump amps=n/a
    indoor weather tech data
    return grill db=78
    fan coil db=78
    entering air wb=62
    act leaving air db=58
    req leaving air db=58
    supply static pr=.30
    return static pr=.15
    coil static loss =
    amps on L1 40 L2=40
    amps off L10 L2 0

  2. #2
    Join Date
    Jul 2012
    Location
    Bridgeton, MO, 'burb of St. Louis, Mo
    Posts
    1,900
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    Annie,

    These are the same numbers you posted in your other thread. For discussion sake, Furnace and air handler can be considered the same. For resi, up north where we need 100k or more BTUH we use a furnace (Gas or Oil). In areas that don't really get cold, a 5kwh (15k BTUH) heat strip may be sufficient.

    Your numbers look okay. 58 evap in florida can't be bad! And 12 subcool is spot on!

    It was a good situation, until everything went wrong!
    Rub some dirt on it and walk it off...
    We will always know it should have worked!
    “There’s a clear cause and effect here that is as neat and predictable as a law of physics: as government expands, liberty contracts.” Ronald Reagan

  3. #3
    Join Date
    Jul 2012
    Location
    Bridgeton, MO, 'burb of St. Louis, Mo
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    I answered every other question except the first one... the return goes into one end of the furnace or Air handler so it can be either heated or cooled by the furnace/ air handler.
    Last edited by rcstl; 09-09-2015 at 05:54 PM.

    It was a good situation, until everything went wrong!
    Rub some dirt on it and walk it off...
    We will always know it should have worked!
    “There’s a clear cause and effect here that is as neat and predictable as a law of physics: as government expands, liberty contracts.” Ronald Reagan

  4. #4
    Join Date
    Jul 2014
    Location
    florida
    Posts
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    THanks the return goes into the air handler ...got it .now to find a picture of this

  5. #5
    Join Date
    Jul 2012
    Location
    Bridgeton, MO, 'burb of St. Louis, Mo
    Posts
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    Just google air handler return. Many examples and we can address your questions.

    It was a good situation, until everything went wrong!
    Rub some dirt on it and walk it off...
    We will always know it should have worked!
    “There’s a clear cause and effect here that is as neat and predictable as a law of physics: as government expands, liberty contracts.” Ronald Reagan

  6. Likes anniebunny24 liked this post
  7. #6
    Join Date
    Jan 2004
    Location
    PA
    Posts
    71,776
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    Quote Originally Posted by anniebunny24 View Post
    The big return with the grill on it that air from house gets sucked into .....what exactly does it go to?
    .I tried to look on line but every picture seemed to have a furnace and I don't even know exactly what a furnace is.But I know I don't have one. I think it is what people in north use for heat?I just have a heat strip.

    And do these numbers look normal? Thanks.
    Here are the numbers from June 23 from a//c well visit.

    dry bulb=92
    liq line psg=320
    liq line F=15 or 75 cant tell handwriting
    act sub cool=12
    reg sub cool=12
    vapor line psig=150
    vapor line F=60
    act super heat=12
    req super heat=12
    act comp amps=7.2
    rated comp amp=2.8
    hru pump amps=n/a
    indoor weather tech data
    return grill db=78
    fan coil db=78
    entering air wb=62
    act leaving air db=58
    req leaving air db=58
    supply static pr=.30
    return static pr=.15
    coil static loss =
    amps on L1 40 L2=40
    amps off L10 L2 0
    Looks like some of them were made up, and not actually checked by the tech.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  8. Likes lkapigian liked this post
  9. #7
    Join Date
    Dec 2003
    Location
    Citrus County, Florida
    Posts
    2,156
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    Rated compressor amps 2.8???? Actual 7.2??? Is there a typo?
    Doug

  10. #8
    Join Date
    Jul 2012
    Location
    Bridgeton, MO, 'burb of St. Louis, Mo
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    It is probably 12.8.

    The third item is 15 or 75 gives me a clue the numbers need to be extrapolated by what we have seen and experienced. I think liq line was probably 95°. Just guessing since she could not read his handwriting.

    .45 static is probably good, 12 sub cool and 12 SH at 92 to 95 OAT is not bad. And 78 in/ 58 out is not too bad from my keyboard.

    It was a good situation, until everything went wrong!
    Rub some dirt on it and walk it off...
    We will always know it should have worked!
    “There’s a clear cause and effect here that is as neat and predictable as a law of physics: as government expands, liberty contracts.” Ronald Reagan

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