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Measured pack flow logic incorrect/reversed


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Posted

When operating off of single source of bleed, pack flow should not increase after additional pack flow control valves are opened, but rather decrease. While duct pressure shows a decrease in PSI with additional packs in use, flow is still reversed.

Pack flow is also indicating 2000-2500 cfm on the selected pack even when the flow control is set to off, with and without a bleed source present. 

 

Posted

 

Also notice: duct pressure higher on #2 than #1 and 3 at the end of the video. 
Cabin is pressurizing while both outflow valves full open/entry door is open. System is far too sensitive in some areas, yet not enough in others (such as when removing bleed source, the leak rate is far too low. These aren't air tight systems)

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