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  1. #40
    Join Date
    Jan 2004
    Location
    PA
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    68,777

    Re: Vacuuming

    Originally posted by dan sw fl
    Originally posted by heetseeker
    I asked my contractor if he pulls a vacuum after he charges the system ... Is he correct?
    How do you vacuum AFTER a charge?
    ... Timing might be off just a tad.
    LOL...

    I missed that part.
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  2. #41
    Join Date
    Apr 2005
    Location
    illinois
    Posts
    257
    So the vacuuming is done during the charge? Does that mean that you can't recover any moisture if somebody charged your system with an inadequate vacuum previously. If you get acid in your system , can it be fixed or do you need a brand new charge? Where does the acid do its damage?

  3. #42
    Join Date
    Jan 2004
    Location
    PA
    Posts
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    On a new system, the vacuum is pulled on the new line set, and indoor coil.
    The outdoor unit is factory charged.

    After the vacuum is pulled and verified that it is holding and at a deeop enough level, then the lines can be static charged if the system requires more charge, or the valves can be opened.

    Acid damages the electrical windings in the compressor.

    If it has to be changed out because of acid, the cleanup filters are also installed.

    He may have just said it backwards, and done it right.
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  4. #43
    Join Date
    Apr 2005
    Location
    illinois
    Posts
    257
    beenthere

    Much thanks for answering so many of my questions. You have been very kind.

  5. #44
    Join Date
    Sep 2003
    Posts
    1,311
    Originally posted by beenthere
    sadlier, we're talking a Mercury u tube, not water.
    Mercury U tube is what I spoke of first. Water U tube was thrown in since, if the water didn't boil off, the distance would be 1/4" which is much more easily readable.

  6. #45
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,777
    Originally posted by sadlier
    Originally posted by beenthere
    sadlier, we're talking a Mercury u tube, not water.
    Mercury U tube is what I spoke of first. Water U tube was thrown in since, if the water didn't boil off, the distance would be 1/4" which is much more easily readable.
    Sorry, saw the water comment and jump to conclusions.

    Guess I got my excersise for the day yesterday.
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