How old is my Ameristar packaged unit?
Serial number age decoder for Ameristar packaged rooftop and ground units: 2 format eras, the decode rule in plain English, transcribed tables, and the official lookup.
Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.
Format example: 130313596L
- Ameristar packaged unit 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.
- Ameristar packaged unit serial numbers in the 2010 to present format encode the year as digits 1-2 = YY (16323AP91G = 2016; 172310127M = 2017) and the fiscal week as digits 3-4; digit 5 = day of the fiscal week (source: building-center.org).
- Example: serial 16323AP91G decodes to week 32 of 2016.
- Ameristar's official lookup at ameristarhvac.com returns warranty / registration lookup.
Format eras
- 2010 to present VERIFIED
#########Adigits 1-2 (YY, 2010+) - 2010 to present VERIFIED
#####AA##Adigits 1-2 = YY (16323AP91G = 2016; 172310127M = 2017)
How to read the serial
2010 to present formatVERIFIED
Shape #########A · example 130313596L · confidence high
- Year
- digits 1-2 (YY, 2010+)
- Week or month
- week = digits 3-4
- Plant
- remaining chars include plant/line and day-of-week; not published
Example: serial 130313596L decodes to week 3 of 2013.
Listed under Trane in the source; Ameristar is named in that format's family and the corporate link is an estimate, not a checked fact.
2010 to present formatVERIFIED
Shape #####AA##A · example 16323AP91G · confidence high
- Year
- digits 1-2 = YY (16323AP91G = 2016; 172310127M = 2017)
- Week or month
- fiscal week = digits 3-4; digit 5 = day of the fiscal week
- Plant
- trailing alphanumerics = build sequence (plant not published)
Example: serial 16323AP91G decodes to week 32 of 2016.
Where the data plate is on a packaged unit
On the cabinet exterior near the electrical access panel, or inside the panel door.
General guidance, not brand-specific: the owner's manual or the installer can point to the exact spot. See the data plate guide.
Open the official Ameristar lookup takes serial number; returns warranty / registration lookup; URL verified live
This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.
What we could not confirm
- Ameristar is treated as sharing Trane's format because the source lists it in that family; the corporate relationship itself is an estimate.
- 'Ameristar is a TRANE International Inc. trademark' (building-center chart) and listed on tranetechnologies.com brands page; site footer is American Standard Heating and Air Conditioning. Styles 16323AP91G / 172310127M (2010+) and 91531S41F (2000-2009) = Trane rules. ameristarac.com is HTTP-only now (301 target ameristarhvac.com).
Sources
- https://www.building-center.org/trane/
- https://www.building-center.org/ameristar-hvac-age/
- https://www.building-center.org/wp-content/uploads/2017/11/Ameristar1-HVAC-Age.png
- https://www.building-center.org/wp-content/uploads/2018/06/Ameristar-Age-Style-2.png
- https://www.ameristarhvac.com/warranty/official
