Daikin DFG Series Installation Instructions Manual page 43

APPENDIX A ECONOMIZER PRESSURE DROP
Airflow Pressure Drop of Downflow Economizer for 15 to 25 Ton Rooftop Units (100% Return Air)
SCFM 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000
(In WG)
0.15 0.18 0.22 0.27 0.32 0.37 0.42 0.48 0.55 0.61 0.69 0.76
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