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How to flush hvac line set?

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Answer # 1 #
  • Remove any obstacles. Any equipment such as filters and expansion valves that might obstruct the line should be removed prior to the purge.
  • Do a nitrogen pre-flush.
  • Prepare the lines.
  • Conduct the flush.
  • Do a nitrogen post-flush.
  • Clean up.
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Monta Perrineau
School Nursing