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Can somone please date this unit?


Chad Fabry
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Can somone please date this unit?

I can't - I'm happily married and my wife is still attractive.

This is what I have for Trane.

The first letter of the serial number gives the year of manufacture:

Z=01

R=00

P=99

N=98

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)

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