Originally Posted by jsled

True. But if you put the packs in high on the ground with the APU bleed on, you get APU high flow rate. (yes. It's a thing) AND Placing the pack switches in high turns off the left recirc fan. It's in our FM. Not as a proceedure, but as an air conditioning description. And yes, it works great.

There is nothing in our books that disallows this procedure.