How old is my American Standard unit?

American Standard is part of Trane Technologies. 4 serial formats sourced across central air conditioner, heat pump, furnace, packaged unit.

• American Standard air conditioner serial numbers in the 2010 to present format encode the year as digits 1-2 (YY, 2010+) and the week as digits 3-4 (source: building-center.org).
• Example: serial 130313596L decodes to week 3 of 2013.
• American Standard air conditioner serial numbers in the 2002 to 2009 format encode the year as digit 1 = last digit of year (2002-2009) and the week as digits 2-3 (source: building-center.org).
• Example: serial 91531S41F decodes to week 15 of 2009.
• American Standard air conditioner serial numbers in the 1983 to 2001 format encode the year as letter 1 via table (table below) and the week as digits 2-3 (source: building-center.org).
• Example: serial F23456789 decodes to week 23 of 1991.
• American Standard's official lookup at trane.com returns warranty certificate; product-only info without last name.

Decoder pages by product

Format eras

• 2010 to present VERIFIED
  #########ACentral Air Conditioner, Heat Pump, Furnace, Packaged Unit
• 2002 to 2009 VERIFIED
  #####A##ACentral Air Conditioner, Heat Pump, Furnace
• 1983 to 2001 VERIFIED
  A########Central Air Conditioner, Heat Pump, Furnace
• 1970 to 1990 VERIFIED
  A##A#####Central Air Conditioner, Furnace

What we could not confirm

• American Standard is treated as sharing Trane's format because the source lists it in that family; the corporate relationship itself is an estimate.
• The 1970 to 1990 format is documented but not decodable here: example A92M07217 does not decode with the derived engine.
• Building-center: 'All modern American Standard styles closely follow Trane brand styling - see Trane'. Trane was acquired by American Standard Inc. in 1984; the HVAC company became Trane Inc. in 2007 (Ingersoll Rand 2008). Warranty page (200) has serial-number FAQ/lookup text.

Sources

• https://www.building-center.org/trane/
• img: Trane-Style-2-Chart-2022.jpg (transcribed)
• https://www.building-center.org/american-standard-hvac-age/
• https://www.trane.com/residential/en/resources/warranty-and-registration/official
• https://www.americanstandardair.com/resources/warranty-and-registration/official

American Standard central air conditioner American Standard heat pump American Standard furnace American Standard packaged unit Trane Technologies family Guides