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Trane mfg. date


kurt

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What about this?

Beginning 1983 a letter was used in the first position to designate the year followed by the week. W = 83, X = 84, Y = 85, S = 86, B = 87, C = 88, D = 89, E = 90, F = 91, G = 92, H = 93, J = 94, K = 95, L = 96, M = 97, N = 98, P = 99, R = 00, Z = 01. Example: B50632891 = Dec 87

Comes out to Nov or Dec, 2001

Marc

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