The age is found in the S/N. The first two number tell you the year, the second two numbers are the month.
That is a 9 seer condenser
Depends on make model year and engine.
I have a York AC unit, model D1NA024N05606C. Can you tell me what year this is.
I have the same unit. It is a 3 ton unit 36000 BTU. manufacture year 1987.
You should get your certified copy from the manufacturer and the seller of the unit saying that it is a qualified unit for the energy saver tax credit and have it in your hand when you prepare your 1040 income tax return for the year that the unit is purchased and installed in your main home in the US. Manufacturer's Certification Statement is required for this purpose. Go to the Goodman air condition website and see if you can find the information that you need at the website or contact the seller of the unit for it.
Serial#
To help you we will need to have the year, make, model and engine size of the vehicle.
I bought mine on August 15, 1992 and at that time it was a state of the art unit and is still operating well.
The unit for a stopwatch is usually in seconds, although sometimes it can be in minutes or hours depending on the model.
Benny Goodman recorded "Sing Sing Sing" in the year 1937.
This unit was manufactured in 1996.
The sending unit may be faulty. The year, make, model and which gauge would help.