Results 1 to 6 of 6
  1. #1
    Join Date
    Mar 2005
    Posts
    1
    I am a home owner with a new Trane heat pump. The system developed a leak shortly after installation and as a result, ran for over a month with almost no refrigerant. Would this have done any harm to the system?

    Thanks

  2. #2
    Join Date
    Nov 2002
    Location
    emerald city, sc
    Posts
    1,469
    it depends on what was done when the leak was found and repaired. how much refrigerant leaked out. type of refrigerant. how much run time?
    i wanted to put a picture here

  3. #3
    Join Date
    Jun 2000
    Location
    WYO
    Posts
    2,019
    Most new systems dont just suddenly develope a leak,It was probably done during installation .If the system was evacuated with a leak,you have air and moisture in the system. You may have other probs as well now.
    Hopefully the problem was followed up and corrected ASAP,correctly. If not solved correctly, you may have problems.
    never say never

  4. #4
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
    Posts
    11,283
    Originally posted by john999
    I am a home owner with a new Trane heat pump. The system developed a leak shortly after installation and as a result, ran for over a month with almost no refrigerant. Would this have done any harm to the system?

    Thanks
    I would say it ran for over a month with a slowly diminishing amount of refrigerant.

    If it was a large leak and the charge blew quickly, the compressor would've likely gone out on internal protection and you would've noticed the loss of performance quickly rather than gradually.

    Nevertheless, a proper repair to the leak, new liquid line drier, and evacuation to 500 holding-steady-at-blank-off microns is called for before the system is recharged and returned to service.

    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


    A building is NOT beautiful unless it is also comfortable.

  5. #5
    Join Date
    Oct 2004
    Posts
    3,400
    And buy the extended warranty, if it is offerred.

  6. #6
    Join Date
    Apr 2004
    Location
    Niantic, Illinois
    Posts
    545
    If it was a model better than the entry level builder's model it will have high and low pressure switches to protect the unit. So if it was one of the middle end or higher units it probably leaked slowly. Most likely the leak was there from the beginning. The Trane units that are leaking from the installation are usualy leaking at the evaporator end. There is a compression fitting on the liquid line side that the installers don't always properly tighten. Also the suction lines are a bit tough to braze at the evap coil, they tend to have a tiny hole on the bottom of the joint. My personal theory is that this leak is caused by the soft solder that Trane uses to put the cap on the end of the tubing. After you heat it up to pop the cap off it settled in the bottom and causes the braze joint to not take well. I always braze with nitrogen. Then I pressurize the system with nitrogen to 150 psi(the max my regulator goes) and use big blue to check all of the fittings and joints. It works very well for me.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image