Trane Furnace Age Serial Number

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Trane Furnace Age Serial Number

this appears to be a newer unit 1 to 2 years but I cant figure it out by the serial number , any help would be appreciated.
How can I tell the age of a Trane furnace from the serial number? There are two serial number formats: 1)2002 to present – If the serial number is a 9-digit combination of letters and numbers that starts with a number, then the first number is the year. Beginning in 2010, the first two digits are the year.
1) If S# is 9 numbers than (2002-present), the first digit of the serial number is the year …. in mid 80’s- Trane Since) Age is the last 3 digits of the serial number.
Trying to find the approximate age of a Trane furnace. Saw no Manufacturer date. I only have the serial number and Model number to go off of.
723102719L Can someone let me know age? … know age? I have several Trane Serial Number nomenclatures in my library, but not this one.
manufactures in the model number and date of manufacture info in the serial number … Age: Through the 1960s Carrier used the first digit of the serial number to …. Capacity: Trane has used a number of different methods for encoding capacity.
Look at the interior of the metal door for a label or tag listing the furnace’s serial number. This may also show an actual manufacturer’s date.

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