ASHRAE 90.1 2007 Pressure Drop Adjustment

[David_S]

Hi,

I am trying to incorporate the pressure drop adjustment fan allowance as per the ASHRAE 90.1 2007. I am aware of the entry in the System Parameter Tab / System Parameters / 90.1 PRM Baseline System Pressure Drop Adjustment. I am using 90.1 PRM Baseline System 8 (i.e. the textbox is enabled).

But when I enter a value there, the system fan still show original values (even after zones & system autosize).

Is there any other setting that I possibly overlooked?

Thanks!!

[Rishikesh Sambare]

Hi David,

Once you update the Pressure drop adjustment, make sure you tick to tab Update baseline fan sizing data in the PRM workflow step.

Hope this helps,

Regards,
Rishikesh