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Hans Duerichen
06-30-2011, 09:14 PM
I need the manufactured date for my American Standard furnace model 70F2B serial D64 for my insurance co.

Please help

wayne soper
07-01-2011, 04:56 PM
The first letter of the serial number gives the year of manufacture as follows:
9=2009
8=2008
7=2007
6=2006
5=2005
4=2004
3=2003
2=2002
Z=2001
R=2000
P=1999
N=1998
M=97
L=96
K=95
J=94
H=93
G=92
F=91
E=90
D=89
C=88
B=87
S=86
Y=85
X=84
W=83
U=82(seventh digit)
T=81(seventh digit)
O, A=80(seventh digit)