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  1. #1
    Join Date
    Dec 2003
    Posts
    107
    There is another thread with a similar question, http://hvac-talk.com/vbb/showthread.php?threadid=80370, and rather than try to hijack that thread, I‘ll pose my question here as a separate thread.

    Two years ago I had a complete furnace (TVX120R9U5V) & AC replacement with a Trane XL14i 4-ton AC compressor unit 4TTX4048A coupled with a RX054S evaporator coil. Of the three proposals I obtained, two contractors quoted the RX054S coil while the third contractor quoted the TXC048 evaporator coil unit. When I pointed this difference out to the third contractor, he agreed to supply the RX054S coil for the same price. The third contractor that ended up doing the work said that I would probably get better humidity control with the RX054S than the TXC048 coil.

    The furnace and AC have worked flawlessly since and I couldn’t have been more satisfied with my contractor selection. Incidentally, the installing contractor was the higher priced of the three but the spread was only a few hundred dollars. The new installation has made a major difference in the gas and electricity used and the comfort level is much improved over the replaced system that was 29 years old. But in the back of my mind I always wondered what were the major differences between the two coils, the RX054S and the TXC048, and which coil would have been a better match? Would there have been a major SEER rating between the two coils?



  2. #2
    Join Date
    Jul 2002
    Location
    Zelienople, Pa
    Posts
    2,965
    The RXC is used with 410A and the TXC is for r-22.

    He would have had to change the TXV metering device.
    How tall are you Private???!!!!

  3. #3
    Join Date
    Feb 2005
    Location
    Central Alabama
    Posts
    466
    Program & Product Identifier
    Today's Date 07/17/2005 01:09:30 PM
    Created Date:

    Last Modified Date: at
    Status: Active

    Obsolete: No
    Manufacturer: THE TRANE COMPANY

    ARI Reference Number: 548433

    ARI Program: AC
    ARI Type: RCU-A-C

    Trade/Brand Name: XL14i
    NAECA Designation: Yes

    Outdoor Model Number: 4TTX4048B1

    Indoor Unit(s): RXC054S3
    Ventilation Rate:
    Product Performance Ratings
    ARI Rating
    Cooling Capacity (Btuh): 48000

    SEER Rating (Cooling): 13.25 ----------here is answer





    #2
    Program & Product Identifier
    Today's Date 07/17/2005 01:08:48 PM
    Created Date:

    Last Modified Date: at
    Status: Active

    Obsolete: No
    Manufacturer: THE TRANE COMPANY

    ARI Reference Number: 548542

    ARI Program: AC
    ARI Type: RCU-A-C

    Trade/Brand Name: XL14i
    NAECA Designation: Yes

    Outdoor Model Number: 4TTX4048B1

    Indoor Unit(s): TXC048C4
    Ventilation Rate:
    Product Performance Ratings
    ARI Rating
    Cooling Capacity (Btuh): 47000


    SEER Rating (Cooling): 12.25 ------------here is answer





  4. #4
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,915
    The total capacity and SEER of the system is higher with the RXC054 coil.
    Moisture removal is higher with the TXC048C coil.

    The RXC coil has a built in TXV for R-410a.
    THe TXC coil is Tran's standard efficiency R-22 coil, but can be used with R-410a if a TXV is added.

    It is not possible to tell wich one would be best for your application without seeing a load calculation for your home.
    If more government is the answer, then it's a really stupid question.

  5. #5
    Join Date
    Dec 2003
    Posts
    107
    Thanks guys for the feedback. I really appreciate it.

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