AllStyle®

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

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

Parent Company:  AllStyle Coil Co., L.P.
Sister or similar Brands:  AllStyle | Lendell (Obsolete Brand Name)

Example serial number styles/formats found:

  • Style 1:  3C2298461
  • Style 2:  3C48549S

Style 1:   3C2298461

Style 1 – Description: Nine (9) character Serial number begins with one (1) numerical digit followed by one (1) letter and ends with seven (7) numerical digits.
Year of manufacture can be determined by using the 4th – 5th numerical digits.  See chart below (Note:  The numbers are reversed….i.e. in the sample number above the 4th and 5th digits are “29”.  When you reverse the number to “92” you can determine that your unit was manufactured in 1992.
Month of manufacture can be determined using the 2nd letter digit.  See chart below to decode.

Style 2:  3C48549S

Style 2 – Description: Eight (8) character Serial number begins with one (1) numerical digit followed by one (1) letter then six (6) numerical digits and ends with one (1) letter.
Year of manufacture can be determined by using the 1st numerical digit.
Month of manufacture can be determined using the 2nd letter digit.  See chart below to decode.

Page last updated: 5 Oct 2015