American Standard Age?

Specific Inspection Topics Inspecting HVAC Systems
1

American Standard S/N M161t5126 Model # AUD080c936H3

Thanks for any help

2

American Standard and Trane is the same company.

The first letter of the serial number gives the year of manufacture as follows…

4=2004
3=2003
2=2002
Z=2001
R=2000
P=1999
N=1998
**M=1997
**

3

David, Thanks