I inherited one with a "new" home mine was made in 1994...
10 seer
Need serial # for build date & location, not model #.
the date is on the data plate just about the service valves on the outside condenser. the serial number is how you can read the manufacture date. for example, serial number 9805100565, is read as manufactured in may 1998. this is the for all goodman and amana air conditioning units.
The manufacture date of western field model M782 with the serial 830424 is 2012.
The manufacture date was march of 1923.
If you provide the serial number in your question then I can give you the date of manufacture.
If you would post the serial number and model number,I can give you a date of manufacture.
What is the manufacture date of a Colt AR15 rifle serial number 192754 model SP1
1920
1920
1932
1939-1955