American Standard® HVAC Age

How to determine the date of production/manufacture or age of American Standard® HVAC Systems.

The date of production/manufacture or age of American Standard® HVAC equipment can be determined from the serial number located on the data plate.

Parent Company:  Ingersoll Rand
Sister or similar Brands Include: Amana, Trane, Goodman

Example serial number styles/formats found:

  • Style 1: 7032TPW3F or 10161KEDAA
  • Style 2:  F91-90391
  • Style 3:  850304091
  • Style 4:  85J-15474-01
  • Style 5: M3211W91G

Style 1:   7032TPW3F or Style 1a:  10161KEDAA

Description: Style 1:  Nine (9)  character Serial number begins with four (4) numerical digits and ends with five (5) mixed character letters and numerical digits. (Used from 2000 – 2009)

  • Year of manufacture – The first numerical digit of the serial number.
  • Week of manufacture – The 2nd & 3rd numerical digits of the serial number.
  • Work Day of the week of manufacture – The 4th numerical digit of the serial number.

Description:  Style 1a:  Ten (10) character Serial number begins with five (5) numerical digits and ends with five (5) mixed character letters and numerical digits:  (Used from 2010 and beyond)

  • Year of manufacture – The 1st & 2nd numerical digits of the serial number.
  • Week of manufacture – The 3rd & 4th numerical digits of the serial number.
  • Work Day of the week of manufacture – 5th numerical digit.

Style 2:  F91-90391

Description: Nine (9) character Serial number (includes dash) begins with a single letter character followed by two (2) numerical digits a (-) dash  and ends with five (5) numerical digits.

Month of manufacture is 1st letter digit of the serial number.  (See chart below).
Year of manufacture is the 2nd and 3rd numerical digits of the serial number.

Style 3:   850304091

Description: Nine (9) digit all numerical serial number.
Year of manufacture is 1st – 2nd numerical digits.
Month of manufacture is 3rd – 4th numerical digits.

Style 4:   85J-15474-01

Description: Twelve (12) digit (includes dashes)  serial number that begins with two (2) numerical digits followed by one (1) letter digit a dash (-), five (5) numerical digits, another dash (-) and ends with two (2) numerical digits.
Year of manufacture is 1st – 2nd numerical digits.
Month of manufacture is 3rd letter digit.  (See chart below).

Style 5:   M32-11W91G

Description: Ten (10) digit (includes dashes)  serial number that begins with one (1) letter digit followed by two (2) numerical digits and a dash (-), and ends with six (6) varied letter and numerical digits.
Year of manufacture is 1st letter digit.
Week of manufacture is 2nd & 3rd numerical digits combined.

Page last updated: 13 April 2016