Heat pump problems/replacement
Results 1 to 7 of 7
  1. #1
    Join Date
    Mar 2006
    Posts
    1
    Hello and some questions from a homeowner. I have a 10-11 y/o Lennox heat pump with electric back-up heat; condenser m/n HP25-461-29 with an air handler m/n CB-19-41-3P-TXV. The compressor has shorted internally and I'm considering the options to replacing the compressor.

    As far as I can tell by reading Lennox numbering on their site, the condenser is a 3.5 ton, and the air handler is a 3 ton. Q1 - Is that a problem?

    The house is a typical two-story 4-bedroom colonial, built in 1987 near Philadelphia, 2300 sq. ft, 4 bedroom, finished basement, decent windows, r-13 walls and r-19 ceiling. The second floor has never been as comfortable (hot or cold) as the first floor, and air velocity (output and return) seems real low. Q2 - Is the system sized properly?

    The outfit that installed the existing system for the previous homeowner has quoted me a new $4200 for a new Lennox HP13 3.5 ton condenser, no mention of replacing the coil, no questions on how the system worked prior to this problem. Q3 & 4- How efficient is the 13 SSER 3.5ton condenser with a 10 y/o 3 ton coil? And, if the mismatch is a problem, can the coil be replaced with a new 3.5 ton or sholud I go with a 3 ton condenser?

    I likely won't stay in this house longer than two more years. Q5 - What is the most cost effective brand?

    Thanks.


    [Edited by xlcr on 03-17-2006 at 12:51 PM]

  2. #2
    Join Date
    Jun 2003
    Location
    Florida
    Posts
    9,548
    First off, pick a different company,have a load calc done,and install the correct size heatpump. If you want to go with inexpensive, look at a Goodman condenser with matching indoor coil. If you want to see what size you need, the top of this page has a good calculation program.
    Ask around for a company with a good reputation.
    If everything was always done "by the book"....the book would never change.

  3. #3
    Join Date
    Jul 2005
    Posts
    75

    Thumbs up

    i agree .i think that you should install a new unit.
    goodman is the lowest price with the best warranty ,life time on the compressor and ten year on parts.
    with out looking at the house i would think a 4 ton at the smallest would work better.also go with a new furnace with a v.f. drive

  4. #4
    Join Date
    Mar 2003
    Location
    PA/DE area
    Posts
    1,535
    Give us a call,if you just replace outdoor,you will not get SEER or BTU's of new unit or old. And a home inspector might catch it and make you do the inside unit.Rebates are on and with PA winter we are keeping the Pencils sharp for a quick turn around before the RUSH comes.Oliver 610-544-4884 ext 148

    [Edited by heatpump guru on 03-17-2006 at 10:47 PM]
    It's NOT the BRAND,it's the company that installs it!!!!!

  5. #5
    Join Date
    Feb 2006
    Location
    Atlanta,GA.
    Posts
    857
    I agree replace entire system maybe even 410a. but make sure that you get load calc done and that duct size is correct for new system. talk to a realtor you trust as usually new high effecient system is a good selling point and you should be able to recover cost of system maybe even more. by the way 410a is the repalcement for r22

  6. #6
    Join Date
    Jul 2000
    Location
    Louisiana , USA
    Posts
    3,280
    Originally posted by xlcr
    Hello and some questions from a homeowner. I have a 10-11 y/o Lennox heat pump with electric back-up heat; condenser m/n HP25-461-29 with an air handler m/n CB-19-41-3P-TXV. The compressor has shorted internally and I'm considering the options to replacing the compressor.

    As far as I can tell by reading Lennox numbering on their site, the condenser is a 3.5 ton, and the air handler is a 3 ton. Q1 - Is that a problem?

    The house is a typical two-story 4-bedroom colonial, built in 1987 near Philadelphia, 2300 sq. ft, 4 bedroom, finished basement, decent windows, r-13 walls and r-19 ceiling. The second floor has never been as comfortable (hot or cold) as the first floor, and air velocity (output and return) seems real low. Q2 - Is the system sized properly?

    The outfit that installed the existing system for the previous homeowner has quoted me a new $4200 for a new Lennox HP13 3.5 ton condenser, no mention of replacing the coil, no questions on how the system worked prior to this problem. Q3 & 4- How efficient is the 13 SSER 3.5ton condenser with a 10 y/o 3 ton coil? And, if the mismatch is a problem, can the coil be replaced with a new 3.5 ton or sholud I go with a 3 ton condenser?

    I likely won't stay in this house longer than two more years. Q5 - What is the most cost effective brand?

    Thanks.


    [Edited by xlcr on 03-17-2006 at 12:51 PM]
    This is Turtle

    You could have fooled me with that air handler number and it be a 3 ton. I would have thought it was a 41,000 btu air handler.

    Also with the condenser number and it being a 3.5 ton you could have fooled me and i would have thought it was a 46,000 btu condenser.

    TURTLE

  7. #7
    always hated lennox mod #'s... wish they would put btu capacity in thousands and make it easy... hold on let me get my decoder ring out...

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