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  1. 11-06-2006, 10:36 PM #1
    theapprentice
    theapprentice is offline Regular Guest
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    Sep 2004
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    there are alot of old and new fan motors out there and i was wondering what is a good range for cfm for:

    cooling speed, low and high fire fan speeds, as well as the continuous low speed fan for circulation

    thanks in advance

    don
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  2. 11-06-2006, 10:38 PM #2
    nickellhead's Avatar
    nickellhead
    nickellhead is offline Professional Member*
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    That depends on the size of the unit
    Knowledge comes with experience
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  3. 11-07-2006, 08:43 AM #3
    dash
    dash is offline Banned
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    You need a magnehelic or manometer to test the ESP,then the fan data chart(s) for the air handling side ,to set the proper cfms on every job,when they have PSC motors.

    VS setup properly is a lot easier.
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