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Old Jan 6, 2004 | 05:29 AM
  #7  
Erik B's Avatar
Erik B
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Joined: Sep 2002
Posts: 486
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From: Shreveport, LA
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you should be able to run A/C with a smaller D/P. I know I'm running a 2.5 inch d/p till I clear the A/C unit and then it flares to 3 inches and runs like that all the way back.
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