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  1. #1
    Join Date
    Dec 2012
    Post Likes

    Kfr-33 inverter 410a split help please

    Hi I have just purchased a kfr-33 toshiba compressor split system ,

    These units are sold as easy fit for DIY instilation

    I have installed as per instruction book but have now discovered that there is no real way of evacuating the lines without a vac pump , the instructions tell you to open the small pipe valve for 4-5 secs then close , look for leaks then push the large pipe valve with a screwdriver to expel pipe work for 3-4 seconds , then fully open both and run unit ,

    My question is if I get a installer to pump down the 410a into the compressor and close both valves then vac the lines is that going to help of has the damage already been done ?

    Look forward to your thoughts


  2. #2
    Join Date
    Mar 2005
    burlington county n.j.
    Post Likes
    if you opened the valves the damage is done.

    system will need total charge recovered, evacuation then recharge with new refrigerant.

    good luck.......

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