Are the footwells supposed to be open during Max Cooling?

Just did more vac troubleshooting on my '85 SD and cleaned up a pile of vac leaks. I have opening footwells when I switch to the middle function, and best I can tell is YES they are supposed to.

I was looking at 83-604 from the FSM. It's under Climate Control and ACC subgroup

Thx

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I'm not a doctor, but I'll have a look.

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Six others from BMW, GM, and Ford.

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