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  1. #1
    Join Date
    Jun 2004
    Posts
    17










    These photos were taken last winter. This Carrier gas pack heats/cools our office. No wonder we were all smelling fumes in the office?!!! Wish Carrier would use a heavier duty heat exchanger. This unit is approximately six years old. -DF

  2. #2
    Join Date
    Jul 2000
    Location
    Dallas,Texas
    Posts
    4,948
    In the future, take a break BEFORE you pee in your pants.

  3. #3
    Join Date
    Jun 2004
    Posts
    17
    LOL!!! That's one of my techs, Vince. I guess he was just trying to stay warm! :0 -DF

  4. #4
    Join Date
    Mar 2004
    Location
    SE Michigan
    Posts
    17,827
    Anybody ever check the gas pressure on that carrier.
    "Politicians are the lowest form of life on Earth. Liberal Democrats are the lowest form of politician"

    - General George S. Patton

  5. #5
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    33,916
    Typical Carrier RTU heat exchanger to me

    Is that condenser as dirty as it looks on the inside?

  6. #6
    Join Date
    Dec 2002
    Location
    peoples republic of maryland
    Posts
    956
    Originally posted by wolfdog
    In the future, take a break BEFORE you pee in your pants.

    Good to hear from you Wolfy!
    "The meek shall inherit the earth"
    "he that's walking with wise persons will become wise, but he that is having dealings with the stupid ones will fare badly" Proverbs 13:20
    "Pressure is something people feel when they don't know what their doing". Peyton Manning-superbowl MVP

  7. #7
    Join Date
    Jun 2004
    Posts
    17
    Answers: Coolwhip, the gas pressure was adjusted after the heat exchanger was replaced. Unfortunately, I see alot of the tube style heat exchangers split along the weld. They are not usually as bad as this one,

    BaldLoonie: The entire unit including both coils were filthy dirty. The filters were gone when we moved into this building 1-1/2 years ago and I have no idea how long it ran without filters.

    There are three other Carrier gas packs in the building. ALL had split or rusted out heat exchangers. We replaced two and shut the third system off at it serves a warehouse that is now left unconditioned. -DF

  8. #8
    Join Date
    Feb 2004
    Location
    Midwest
    Posts
    9,932
    What caused it to rust so badly?


  9. #9
    Join Date
    Apr 2003
    Location
    Iowa
    Posts
    2,652
    I've seen a couple like that. All of them for because of all sorts of different reasons. I found one like that in a residential unit, I was getting a high CO reading 20 feet from the house. They're lucky they're still alive.
    There are 3 ways to do anything in life; Good, Fast, Slow: You can pick any 2.

  10. #10
    Join Date
    Jan 2002
    Posts
    183
    I wonder if the units are short cycling due to a size or set up issue. Condensate dwell will cause the heat exchanger to fail quicker. Adding a post purge on the inducer fan circuit will extend the life of the heat exchanger and all of the other parts.

  11. #11
    Join Date
    May 2004
    Posts
    11,967
    I find commercial Carrier units from 5 ton and up look like that after 4 years... don't know what is up with that. Maybe material or it could be the old style vent rail inserts installed/rusted out at the end of the tubing. I see in the pics above you have a new crimped style tube. The old ones were straight.

    Carrier worker bees beware... give yourself three months before heating season and check'm !

  12. #12
    Join Date
    Mar 2004
    Location
    Greater Phila
    Posts
    1

    Exclamation Typical Carrier

    That failure is very typical of Carrier. All summer long condensation builds up in the flue gas collection box, along the welds and at the bottom of the turns, while the a/c is running. At least that model is easy to replace. Check it again in five years.

  13. #13
    Join Date
    Feb 2003
    Posts
    102
    do those carrier units have a centrifical switch for air proofing comb air
    if the wheel rusts out a little=more condensation

    when quoting these,make sure you add in the internal hx parts,not included when pricing the hx
    i couldnt believe the price carrier was asking for these
    internal parts.


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