Tempstar®
How to determine the date of production/manufacture or age of Tempstar® HVAC Systems.
The date of production/manufacture or age of Tempstar® HVAC equipment can be determined from the serial number located on the data plate.
Parent Company: ICP
Example serial number styles/formats found:
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Style 1: G051650885
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Style 2: L920671787
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Style 3: 9414B39332
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Style 4: 30512345
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Style 5: Z3Z xxxxx
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Style 6: ZZ xxxxx
Style 1: G051650885
Year of manufacture can be determined by using the2nd & 3rd numerical digits.
Week of manufacture can be determined by using the 4th & 5th numerical digits.
Style 2: L920671787 with MFG. DATE 2/92
This serial # is identical to Style 1 (above), but the date of manufacture is simplified with the inclusion of a MFG Date clearly printed on the data tag.
Year of manufacture can be determined by using the2nd & 3rd numerical digits.
Week of manufacture can be determined by using the 4th & 5th numerical digits.


Style 3: 9414B39332
Year of manufacture can be determined by using the1st & 2nd numerical digits.
Week of manufacture can be determined by using the 3rd & 4th numerical digits.

Style 4: 30512345
Year of manufacture can be determined by using the1st numerical digit. (See chart below)
Week of manufacture can be determined by using the 2nd & 3rd numerical digits.

Style 5: Z3Zxxxxx
Year of manufacture can be determined by using the 3rd letter digit. (See chart below).

Style 6: ZZxxxxx
Year of manufacture can be determined by using the 2nd letter digit. (See chart below).

Page last updated: 7/26/2017