noisy refrigerant lines...
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  1. #1
    new owner of new home expressed concern of "noisy" lineset inside the second floor wall. I listened and it sounded pretty loud, almost like someone turned on the water, even sounded like possibly bubbles in there. Should I pump it down and install a sightglass? Could something like this be because of inadequate vacuum procedure?

  2. #2
    Join Date
    Apr 2003
    Location
    Eugene, Oregon
    Posts
    1,209
    incorrect charge or even non-condensibles can cause this noise.
    Proud supporter of Springfield Millers and Oregon Ducks.

  3. #3
    Join Date
    Apr 2004
    Posts
    7,680
    Could be either and maybe even a few others.

    Is this in coling mode? Is it a heat pump? What unit are we dealing with and how long and high are the linesets?

    I never thought running linesets through walls was a good idea anyway. Worst yet, run through bedroom walls.

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