How to determine the Date of Manufacture or age of a Valedictorian Ventilator

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How to determine the date of production/manufacture or age of a VALEDICTORIAN Ventilator or other VALEDICTORIAN HVAC equipment.

 

The date of production/manufacture or age of VALEDICTORIAN HVAC equipment can be determined from the serial number.  Serial number styles/formats found are:

Style 1:  01121010691

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