Trying to identify a unit.

[thump_rrr]

I have a unit I am trying to identify so that a replacement can be found.
The unit has A/C and gas heat and the supply is above the return.
The only thing I can find on the unit is that it's an Amana.
The rating plate sticker is completely wiped out.
From the compressor it is a 3 ton unit.

Thanks for any help

[mrkelly]

American Standard had an 'over & under duct pkg unit. Have no idea Now if They ever got the 14 SEER model out yet or not.