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T77911S T77911S is offline
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Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,335
again, I don't do residential for a living.

"usually" the up and down are completely separate.
one return up, one down.
if you can convert it to that way you may consider it. '

its your house and you know the layout.
just keep in mind you want the air to flow BACK to the unit that is running.
I would "hope" the guys that put the system in did it the most efficient way, they usually don't want to waste money running unnecessary duct
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Old 06-18-2019, 07:20 AM
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