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  1. #1
    Join Date
    May 2003
    Location
    Sarasota. Fl
    Posts
    1,272
    Lennox

    MD#10AC24-1p

    SER#5193F13959

    What size piston does this condensor use?

    Im running 85 suction with 165 Head.

    0 superheat and 0 subcooling.

    12 degree delta.

    This is a new "rental house" I just purchased,

    Any other Ideas?

    Thanks in advance.



    [Edited by miami mike on 07-31-2005 at 05:43 PM]
    It is the job of thinking people not to be on the side of the executioners.

    ~Albert Camus

  2. #2
    Join Date
    Feb 2005
    Location
    Central Alabama
    Posts
    466
    still researching but should be .62

  3. #3
    Join Date
    May 2003
    Location
    Sarasota. Fl
    Posts
    1,272
    Originally posted by bama 101
    still researching but should be .62
    I appreciate it....
    It is the job of thinking people not to be on the side of the executioners.

    ~Albert Camus

  4. #4
    Join Date
    Feb 2005
    Location
    Central Alabama
    Posts
    466
    or maybe .61 try this web site

    http://www.lennox.com/owners/archived-docs.asp

  5. #5
    Join Date
    Nov 2004
    Posts
    2,927
    smaller than the one you got in there!

  6. #6
    Join Date
    May 2003
    Location
    Sarasota. Fl
    Posts
    1,272
    Anyone know what size piston shipped in a Janitrol....(A/H)

    a24-92

    G017281

    I really dont want to pump it down at 7:00 pm Sunday night.
    It is the job of thinking people not to be on the side of the executioners.

    ~Albert Camus

  7. #7
    Join Date
    Jul 2002
    Posts
    962
    With low SH its probably not the compressor valve leaking , but you have to do a pump down anyway to check the piston. I see alot of those builder's grade model's.

  8. #8
    Join Date
    May 2003
    Location
    Sarasota. Fl
    Posts
    1,272
    Originally posted by Chill
    With low SH its probably not the compressor valve leaking , but you have to do a pump down anyway to check the piston. I see alot of those builder's grade model's.
    Ya...its a mis-match obviously. Im betting that the Piston was never changed during the changeout of the condensor.

    Its 92 outside and I dont want to pump it down, then vacuum.....etc. Without the correct piston on hand.

    Thanks for all the replys though.

    Maybe "Robo" will be along and can tell me what piston shipped in that A/H.

    It is the job of thinking people not to be on the side of the executioners.

    ~Albert Camus

  9. #9
    Join Date
    Feb 2005
    Location
    Dothan, Al
    Posts
    3,453
    Ok lets recap:
    85# suction ( IAT ? )
    165# head ( OAT=92 )
    I'm assuming r-22 system, 10-12 ser ?
    If so, then, No way - System must be bleeding over
    85# suction would generate high head under normal conditions and you have very low head ( if readings are accurate ), compressor cannot be doing its job ( or reversing valve - but usually the head is a little higher if valve was bleeding by )

    Richard

  10. #10
    Join Date
    Jul 2002
    Posts
    962
    Richard, thats why I'am suggesting the pump down to be sure. But usually bad compressor will show high SH, because it can't pump enough refrigerant fast enough thru the evap and it picks up to much heat.

  11. #11
    Join Date
    Nov 2004
    Posts
    2,927
    sunday 7:00PM...hmmm...

    Robo,schmobo!

    use the tripsaver universal piston sizer...
    Johnstone catalog # H24-133

  12. #12
    Join Date
    Jul 2002
    Posts
    962

    Talking

    Originally posted by jacob perkins
    sunday 7:00PM...hmmm...

    Robo,schmobo!

    use the tripsaver universal piston sizer...
    Johnstone catalog # H24-133

    Please tell me your joking....

  13. #13
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    stop and install a txv and the piston is gone
    instal a hard start kit also
    you will get the proper superheat and do the lenox approach on it and you will be done. the approach numbers are on the panel and the 10acb will work fine with an axpansion valve. this way the piston doesant matter and the coustomer gets a better job. if the valves are bad you will have a problem pumping it down in most cases.

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