York® How to determine the date of production/manufacture or age of York® HVAC Systems. The date of production/manufacture or age of York® HVAC equipment can be determined from the serial number located on the data plate. ANNNNNN This serial number was used from 1969 to 1990. Frigidaire - see Nordyne. Frigidaire brand name for HVAC created in 1998 by Nordyne. Free VIN decoder. Learn what all the different characters in your vehicle identification number (VIN) mean with our simple guide.
I have an older Rheem furnace that I'm trying to narrow down how old it is. The electrical service had a tag on it dated 1973, but that doesn't mean the furnace has never been replaced.
It's a Rheem 3404-125GB, serial number XK69JN3B004 2287
Since the '2287' is off by itself, I first thought maybe it was the sequential build number... but now I'm wondering if it's the date code.
Every place I look for Rheem serial number decoder rings says that the 4 digits after the 'F' in the number are the date code. However, my serial has no 'F'.
Any insight would be appreciated!
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Created Date: 7/28/2006 10:03:56 AM. SERIAL NUMBER NOMENCLATURE Prior to 1980 April 1, 1980 to June 1,1980 June 1, 1980 to Current 123456 A D 123 D A 123456 123 H 02 Compressor Part Number 123= 8000- 123 Date Code Unit Identity1962=B. Number MONTH JAN = A FEB = B MAR= C APR = D 1972=M. MAY= F JUN = H JUL = J AUG = K SEP = L OCT = M 1978=T. NOV = N DEC = P.
Gerald Ridenour, an Aviation Cadet in the U.S. Army Air Force, died in World War II. He was just shy of his 21st birthday. When my mom showed me his grave at Highland Cemetery in Perry County, Ohio, I knew I had to find out more about him.
I found him listed on the WWII Army and Army Air Force Casualty List on Fold3. The information includes name, serial number, rank, and something pertaining to the death.
From World War II Honor List of Dead and Missing: State of Ohio. Online at Fold3 (titled WWII Army and Army Air Force Casualty List).
It was when I looked for the meaning of “DNB” (Died Non-Battle) that I discovered there is meaning in the serial number, also referred to as a service number.
The U.S. Army began issuing serial numbers to help avoid mixing the records of people with the same name. (A genealogist’s dream come true!) When we dig a little deeper into the number itself, we can learn a bit about the person.
Some prefixes were used in World War I. However, the following system began shortly before World War II. The first character gives us a lot of information.
When you have an 8-digit serial number, the second number shows the Service Command. This narrows down where the person enlisted or was drafted. If you have a serial number for a member of the WAC, look at the number after the letter prefix. There’s an exception. Remember those serial numbers that begin with “2,” showing National Guard service? You need to look at the 3rd digit. (The second digit for those will always be a zero. You knew there’d be some exception, didn’t you.)
Since the second digit of Gerald Ridenour’s serial number is 5, we now know that he enlisted from either Indiana, Kentucky, Ohio, or West Virginia. The same for where Robert Pratt and William Ratliff were drafted. Arthur Porter, from the National Guard, also enlisted from one of those four states, since the third number of his serial number is 5.
According to the introduction to the World War II Honor List of Dead and Missing:
“Serial numbers are assigned with great care and according to a set of regulations. Consecutive serial numbers, for example, are not assigned to twins since this might cause confusion of identity between two persons with the same birth date and same general physical characteristics.”