I'm pretty sure this 200K BTU York with an 8 ton drive requires more than a single side 16x25 return.
Good? Bad? I'm the guy with the gun.
bet that heat exchanger looks great
York has an interesting location on the limit control
20x25 dual returns probably stated in the installation instructions but who reads those?
Here's your sign...
I swear one day i will bring them home and read them
imagine the noise create at the return register ..