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Dating forced air systems

Frank Turak
Frank Turak Member Posts: 1
in THE MAIN WALL
I am a home inspector needing information on the date of a Bryant Plus 90 forced air heating system.
Model # 398AA036080, Series A
Serial # 3791A06227.
I contacted Bryant, but received no response. If I read the serial number correctly I believe it was manufactured in 1991, but it could also be in the Model # thus making it 1998. Client needs this information for insurance purposes.
Thanks for any help.

Comments

  • jeff_25
    jeff_25 Member Posts: 110


    i thinks it was made the37 week of 91 jeff
  • tim from Reed Wright
    tim from Reed Wright Member Posts: 113
    bryant date

    Yes, i am pretty sure that 37th week of 91 is correct. Also that model is more than 5 years old
  • rob
    rob Member Posts: 64
    Date code

    Model 398 class of furnace AA=usually 3 alpha, loks missing one character 036 Fan drive max a/c size 080 nominal input (could off a few K btu, careful for ManJ sizing AVA= 2 stage MAV=90
    KAV-80 Ex: 355 MAV 036 080 Variable speed 90% gas 3T drive with 80K BTU (+-)
    S# 1st 4 Week/year Plant alpha id and product sequential id
    Series # is important for parts or engineering upgrades and software changes or operation protocols.
    3798 A 00000 bryant.com very helpful go to dealer resources and tech lit download PDS product data sheet for additional help.
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