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  • Users: mnchapman
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  1. mnchapman

    esp reading taken at blower?

    Im still working on what seems to be low air flow to a kitchen in a public school. The blueprints for show two figures: Air Handler ESP= 0.87" RAF (return air fan) = ESP= 1.14. I've taken several readings and none of them match those numbers, nor even close. Where, or what points did the...
  2. mnchapman

    How to get actual cfm with only static pressure probe.

    I have a air handler serving a school kitchen. The air flow seems poor and cooling is weak. How can I derive the actual cfm being delivered? I took a External Static Pressure reading midway down the ductwork,, it .21" for a 20x20 inch square duct. The supply fan is rated 1650 cfm. There is a...

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