Mike Lamb Posted January 13, 2017 Report Share Posted January 13, 2017 The ANSI date for this furnace was 1992 I think. I didn't write it down. The house was built in 2001. I checked my cheat sheet for American Standard and Trane and don't see anything that matches. SS# Z335W622G. Click to Enlarge 49.84 KB Link to comment Share on other sites More sharing options...
Jim Katen Posted January 13, 2017 Report Share Posted January 13, 2017 First letter, "Z" is 2001. Link to comment Share on other sites More sharing options...
kurt Posted January 14, 2017 Report Share Posted January 14, 2017 Yeah. In 2002, they switched to the first numeral, i.e., first digit 2 means 2002, 3 means 2003, etc. Download Attachment: Furnace Age Chart.pdf 103.56 KB Link to comment Share on other sites More sharing options...
Mike Lamb Posted January 14, 2017 Author Report Share Posted January 14, 2017 I did look at the TIJ library for dates but missed that. Thanks. The 1992 ANSI threw me. Link to comment Share on other sites More sharing options...
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