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  1. #14
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    Thread Starter
    Quote Originally Posted by Kennyhvac View Post
    What furnace is it paired with? If it is a tm9e i can send you airflow chart.
    Sorry, didn't think about the furnace.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  2. #15
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    Thread Starter
    Quote Originally Posted by Kennyhvac View Post
    That is a two ton condenser and 3 1/2 ton evap
    Thanks. Don't know how this was an AHRI match?
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  3. #16
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    Thread Starter
    Quote Originally Posted by KB Cool View Post
    Seems like it's loaded up and working. Are you pulling in hot attic air. Air flow too high?
    KB,

    Too high air flow may be an issue. I am going back for further investigation on this one. I need to check CFM and find out where it is at.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  4. #17
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    Dec 2005
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    Any heat stuck on?

  5. #18
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    Thread Starter
    Quote Originally Posted by newoldtech View Post
    Any heat stuck on?
    No. Gas furnace not on.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  6. #19
    Join Date
    Sep 2002
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    Well; let's think about this

    10 across the evap sounds like high air flow or some plugged distributor tubes. Does the evap frost evenly if you stop the indoor blower while the condensing runs?

    25 across the condenser sounds like a dirty coil, the wrong speed fan motor, or too much refrigerant charge.

    BTW: 345 = 106. Minus 98 - 8 SC - not 10.

    But either 8 or 10 eliminates liquid logging in the condenser coil - unless you also have a partially clogged liquid line drier. <g>

    PHM
    -------


    Quote Originally Posted by joemach View Post
    Condenser: York
    M- YCJF24S41S1A
    S- W1G5825330
    Spun Filter inside condenser

    Furnace Coil:
    M- MC43B3XC1A
    S- 005009747741

    IDWB: 57 degrees
    ODDB: 74 degrees

    Indoor Delta T: 10 degrees
    Condenser Delta T: 25 degrees

    Head Pressure: 345#
    98 degrees liquid line
    S/C: 10

    Section Pressure: 132#
    56 degrees suction line
    S/H: 11

    Never saw anything like this one.

    Any help appreciated.

    TIA.
    PHM
    --------
    The conventional view serves to protect us from the painful job of thinking.

  7. #20
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    Sep 2007
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    Thread Starter
    Quote Originally Posted by Poodle Head Mikey View Post
    Well; let's think about this

    10 across the evap sounds like high air flow or some plugged distributor tubes. Does the evap frost evenly if you stop the indoor blower while the condensing runs?

    25 across the condenser sounds like a dirty coil, the wrong speed fan motor, or too much refrigerant charge.

    BTW: 345 = 106. Minus 98 - 8 SC - not 10.

    But either 8 or 10 eliminates liquid logging in the condenser coil - unless you also have a partially clogged liquid line drier. <g>

    PHM
    -------
    PHM,

    Thanks for your sage thought-provoking comments.

    This thing has a spun filter inside the condenser (so stupid). Also very possible high air flow since it is a 2 ton condenser with a 3-1/2 ton coil. Not sure on the furnace size (forgot to get model number). But I will bet that high speed is way too too much air.

    I looked up the specs on the fan speed on York's site and it calls for a 1075 RPM condenser fan. When I was at the condenser it appeared to be running at 850, which I did not question. Either the fan is dying (which I have seen before) or the wrong motor was installed at the factory. This is a 3 year old system and a little old lady, so she may not have noticed the difference. But she did mention that it took a long time to cool down the house. I will check with her to see if this has always been the issue or is something new.

    I was at the call for a PM, so there was not a complaint.

    Looks like I have further investigation to do. And polish up my math skills.

    Thanks to all for help and suggestions where to look !
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  9. #21
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    Mar 2007
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    Myrtle Beach, SC
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    Indoor Wet Bulb 57 degrees seems awful cold. I normally see 75 degrees Dry Bulb and about 63 degrees Wet Bulb. Is this in a refrigerator?
    Remember, Air Conditioning begins with AIR.

  10. #22
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    Maybe he is in a very low humidity area?

    PHM
    -------




    Quote Originally Posted by Kevin O'Neill View Post
    Indoor Wet Bulb 57 degrees seems awful cold. I normally see 75 degrees Dry Bulb and about 63 degrees Wet Bulb. Is this in a refrigerator?
    PHM
    --------
    The conventional view serves to protect us from the painful job of thinking.

  11. #23
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    It is possible it is a low humidity area, I did not think of that.
    Remember, Air Conditioning begins with AIR.

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