Milenko2121 Posted February 15, 2013 Share Posted February 15, 2013 To convert to r134a I have read that you can just dump it into the regular system, but you might get a slow leak or a 20% less in efficiency. Do I need to vacuum first before placing r134a in the system? Quote Link to comment Share on other sites More sharing options...
Tony D Posted February 15, 2013 Share Posted February 15, 2013 If you are as unfamiliar with A/C Service as your post suggests you are, you should leave the conversion to someone who knows how to do it. Don't mix refrigerants. Don't simply put refrigerants into a leaking system, find and repair the leak. Quote Link to comment Share on other sites More sharing options...
big-phil Posted February 15, 2013 Share Posted February 15, 2013 Yes Tony is RIGHT, the oils are not compatible between the two. when converting the entire system should be flushed, all traces of the R12 oil needs to be flushed out. Vacuum, then add 134a oil, and refrigerant. You should find someone who knows, or has done it before. Quote Link to comment Share on other sites More sharing options...
Tony D Posted February 16, 2013 Share Posted February 16, 2013 No Phil, I'm merely "being pedantic"! Quote Link to comment Share on other sites More sharing options...
Tony D Posted February 16, 2013 Share Posted February 16, 2013 HAHAHAHAHAHAHA Quote Link to comment Share on other sites More sharing options...
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