Hello!

I've always used Heatcraft Evaporators and I select them according the BTUH's in the catalog, wich is the capacity when 10ºF TD.

Today I got a project where there's a low humidity requirement (35-50%), so I was thinking I could use a higher TD, maybe 22ºF so humidity will be lower and they won't have to buy such a big dehumidifier system.

The guy who helps me recommended me a Evaporator that using 10ºF TD is 14,000BTUH, but using 22ºF TD is 30,270BTUH.

The question is, the capacity of an Evaporator can be increased such like this when using TD??? Is there a limit to increase Evaporator capacity using TD???

Please correct me if you don't understand me well!
Thanks in advanced!