cfm

[317069]

Hello All

Usually they use 400 cfm per ton, but this needs the delta T between suply ait temperature and cooling set point to be about 27F, so if the set point was 75F then the suply air has to ba about 48F
I know the suply air usualy is about 55 to 58 F
shall we have to go with this rule of thumb 400cfm/ton or go with program result?
Thanks

 

[DRWeig]

You're leaving out the latent heat removal that's done at the cooling coil. Not all of the capacity goes into reducing dry bulb temperature.

Look at a psych chart and a typical coil curve.

Good on ya,

Goober Dave