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How to Size VAV-FPB boxes

How to Size VAV-FPB boxes

How to Size VAV-FPB boxes

(OP)
Hi,
I need help sizing a few vav or even fan powered boxes.  I have the heating/cooling loads for the area.  If I was to select a rooftop/split I know how go size/select the units.  But in case of this system, all I have is a medeium pressure duct (dia. can be varied) from a very large very old air handler that supplies me air at about 55-60 F,( I will have to verify that). The air handler also supplies air to other areas.
thanks,

RE: How to Size VAV-FPB boxes

Selecting the inlet size of a variable air volume (VAV) terminal box requires the consideration of five factors: (1) pressure drop acrossthe box; (2) ability of the VAV box controller to measure and controlthe desired minimum and maximum airflow setpoints; (3) first costs ofthe VAV box, its installation, and controls; (4) noise generation; and (5)space constraints.
For a full explanation go here:http://taylor-engineering.com/downloads/articles/ASHRAE%20Journal%20-%20Sizing%20VAV%20Boxes-Taylor%20&%20Stein.pdf

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