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Pump down principle

  1. Dec 2, 2005 #1
    "Pump down" principle

    A building has a storage room that needs to be cooled. This cooling-system is to be controled using the "pump-down" principle. I have absolutely no idea what this implies! Anyone...?
  2. jcsd
  3. Dec 2, 2005 #2


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    Not me, lad. Sorry. I might be familiar with the process, but not by that name.
  4. Dec 30, 2005 #3
    Do you mean pumping down to a vacuum? Or do you mean pumping down the refrigerant? (pulling the refrigerant out of the system).

    You might want to check some of the HVAC sites or eng-tips.com.
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