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  1. #1
    Join Date
    Jun 2002
    Location
    Jacksonville, Fl
    Posts
    106
    Does anyone know the tonnage on a Lenox model #HP23-211-1P condensing unit? Lee

  2. #2
    Join Date
    Nov 2000
    Location
    Manhattan, Kansas USA
    Posts
    677
    1 1/2 ton heat pump

  3. #3
    Join Date
    Jun 2002
    Location
    Jacksonville, Fl
    Posts
    106
    Swany, Thanks for the response. The CU is Lenox HP23-211-1P and the AHU is Lenox B2402-1P. Apparentely this is a 1 1/2 ton CU with a 2 ton AHU(with txv). It is my understanding that if a piston is used the CU & AHU must have the same piston size. Did the AHU txv need to be changed to match the CU when the system was installed? I am replacing the Lenox AHU with a trane with a piston. A 1 1/2 ton piston will need to be installed in the AHU(instead of the 2 ton that comes with the AHU). Am I correct on this? Thank You, Lee.

  4. #4
    Join Date
    Feb 2004
    Posts
    2,597
    with a heat pump you will need to change the entire system.

    trane doesn't make ahu/coils to match lennox hp's.

  5. #5
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    A Trane TWE024C air handler should work just fine with that HP23 heat pump. Use the piston size listed on the heat pumps name plate or get a TXV kit for it. There is also the TWE024P air handler that already has a TXV in it.
    It will work just fine, just no way to tell what the actual capacity and efficiency are. What you end up with will likely have more sensable capacity, but less latent capacity than the origonal system. You could go with the TWE018C or TWE018P for more latent capacity. Its all just guesswork though.


    billva,

    While the ideal would be to change a system out with a complete ARI matched system, in the real world compromises often have to be made based on customers needs and budgets.
    If more government is the answer, then it's a really stupid question.

  6. #6
    Join Date
    Jun 2002
    Location
    Jacksonville, Fl
    Posts
    106
    I do like a matched system but in this case I will probably go back with a 2 ton Trane AHU as that is the airflow the homeowner is accustomed to getting. I will call Trane and get the correct piston size to match it with the 1 1/2 ton CU.

  7. #7
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    If you use(d) a two ton,you still only want 1.5 tons,600 cfm max. air flow.InFlorida maybe 375 or 350 cfms per ton,is likely better.Certainly not 800 cfm.

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