Steven Hockstein Posted April 30, 2014 Report Share Posted April 30, 2014 My HVAC guide does not have this code. Anyone know the age? Thanks in advance. Click to Enlarge 45.58 KB I realized that the number may hard to read in my photo. The Serial #12902695 C . Link to comment Share on other sites More sharing options...
rkenney Posted April 30, 2014 Report Share Posted April 30, 2014 Try this: http://www.buildingcenter.org/mitsubishi Link to comment Share on other sites More sharing options...
Steven Hockstein Posted April 30, 2014 Author Report Share Posted April 30, 2014 Try this: http://www.buildingcenter.org/mitsubishi Thanks. I tried that site. The style of the serial number is not listed. Link to comment Share on other sites More sharing options...
Bill Kibbel Posted April 30, 2014 Report Share Posted April 30, 2014 Msg. me your email and I can send you an Excel chart that I got from Mitsubishi for their split systems - when I get back in. Link to comment Share on other sites More sharing options...
mjr6550 Posted May 1, 2014 Report Share Posted May 1, 2014 The first number in the SN is the last digit of the year. They switched to R-410 refrigerant in 2006 and never used R-22 and R-410 at the same time. If I could read the label properly it looked like R-410, which would make that 2011. Does that seem correct? Link to comment Share on other sites More sharing options...
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