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Clarification name and age of AC unit


Michael Carson
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Have an inspection tomorrow, while setting up the radon yesterday I took some notes down. Have an AC unit Model number AC024M1021A with a serial number of WDLM053751. Name plate on the front is missing. Is this a York brand around 1999 or 2000 time frame?

Thank you for your help.

Yes, York & its ilk are the only ones whose serial numbers lead with four letters. The third letter is the key. L is 2002.

- Jim Katen, Oregon

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