I am working on a heat load calculation for an HVAC system.  The system is installed and operational, so I am revising the calculation to include new heat loads in the area so that I may determine that the existing HVAC system is capable of adequately cooling the area.

The problem is, that the previous revision of the calculation I am working with seems to have been wrong.  So I am starting it fresh.

Vendor information for the A/C unit provides cooling performance data for cooling at 2,700 cfm, 3,000 cfm, and 3,300 cfm; however due to a supply side fire damper, flow is restricted to 1,700 cfm.  Is there a way to calculate the Total Cooling and Sensible Cooling for a lower flowrate, given the same outside air and return air conditions?

I have linked the PDF for our A/C unit.

Thanks in advance for any help.
 

cfm is load calculation output not input.
you calculate your load first then you define the cfm required.
after that you check unit data or talk with unit munufucturer.
but I didn't understand that you are not able to go over 1700 cfm because of fire damper?