aging aircondioners and furnace,s

[Joel Willaby]

I would like a referance sheet to age these units from there serial numbers.

[gkoehl]

Originally Posted by jwillaby

I would like a referance sheet to age these units from there serial numbers.

For that you will need to get Preston's Guide (highly recommended)
Or Carrier Bluebook (okay in a pinch not as good as Preston's)

[waksell]

This is what I use. Cannot guarantee its accuracy.

HVACManufacture Dates From Serial Numbers on Condensing Units

AMANA / BLACKHORSEB=1971 or 1981 (Of course, now that they've been bought by Goodman, who knows what'll happen)


BARD1962 to March 1980 Sample Number 123456 A D
1st six digits are the Unit Identity Number. In this example they are represented by the numbers 123456. 7th digit is the month of Manufacture.
8th digit is the year of Manufacture. (The letter D in the Sample represents 1964).

1962 = B 1965 = E 1968 = H 1970 = K 1973 = N Letter “Q” not used 1978 = T

1963 = C 1966 = F Letter “I” not used 1971 = L 1974 = O 1976 = R 1979 = U

1964 = D 1967 = G 1969 = J 1972 = M 1975 = P 1977 = S 1980 = V

April & May 1980 Sample number 123 D A 123456
1st three digits are the Compressor Part Number. 4th digit is the month of Manufacture. 5th digit is the year of Manufacture.
In this sample A represents 1980. 1980 = A 6th thru 11th digits represent the Unit Identity Number.
This serial number style was only used during the months of April & May 1980.

June 1980 to Current Sample number 123 H80 1234567 02 1st three digits = Compressor Part # 4th digit = Month
5th & 6th digits = Year 80 = 1980 81 = 1981 82 = 1982 The year 2000 started the numerical numbering from 00.

00 = 2000 01 = 2001 02 = 2002 Right on through to current date. 7th thru 13th digits = Unit Identity #. 14th & 15th digits = Factory Code (01=OH; 02=GA)


Carrier, Bryant, Payne, Day & NightRecently (last 20 years or so) the first four numbers in the serial number represent the week and year.
Previously, it was a complex series of letters and single digits. Call 905-672-0860 if you get stuck.


ColemanSerial numbers prior to April 1992=1st two numbers are month, then year, then series.
After April 1992, 1st two numbers are year, then month, then series. Call 905-672-0860 if you get stuck.


Comfortmaker (International Comfort)Uses the first letter for the month (skipping I) and the first two digits are the year.


First Company Service PartsIs one of 4 divisions of First Operations. They supply OEM equipment to all of the major HVAC manufacturers.
They are located in Dallas, Tx at 214-388-5751. Harold Hammer at Tech Support (ext#5) will answer your questions.


GoodmanFirst two digits of the serial number are the year. Second two are the month.


Lennox Either the first two or second two digits are the year, it varies by era, but most of them actually have a separate sticker somewhere that has the year printed on it. Newer ones are first two equals manufacturing plant #, 2nd two are year and letter in fifth slot is month.


PeerlessPrior to 1984 there was not a date code included as part of the serial number. Starting in 1984, there was a four digit date code following the serial number that was month and year. Example – JO-12345-1084, this unit was built in October of 1984. Starting in the year 2000, same idea only it was a six digit date code following the serial number that is year and month. Example – 1234567-200105, this would have been build in May of 2001.
Anything without the addition to the serial number would have been made before 1984 and would require contact with the factory.


Rheem & RuddSomewhere in the middle of the serial number will be a letter. The following four numbers are the week and year.


TRANEUses alpha codes in their serial numbers to determine year of manufacture. They started this in 1987 with the letter B and skipped a couple of letters during the years... The first letter of the serial number gives the year of manufacture as follows:

O, A=80(seventh digit) U=82(seventh digit) X=84 S=86 C=88 E=90 G=92 J=94 L=96 N=1998 R=2000

T=81(seventh digit) W=83 Y=85 B=87 D=89 F=91 H=93 K=95 M=97 P=1999 Z=2001

In 2002 they started their serial numbers with the year it was built. In 2002 the first character of the serial number is 2, in 2003, 3 and so on.


Weil-McLainPlease look on the outside jacket of the boiler for a CP Serial Number. It will have a bar code on it. Call (or email) Weil-McLain and they will tell you the date of manufacture. Phone: 219-879-6561 ask for Technical Services


YORK (Unitary Products since 1984)York purchased Fraser, Johnston and Luxaire in 1980.
Year of make indicated by 3rd letter in the serial number. Note: they skip the letters I, O, Q, U, Z.

1971 - A 1975 - E 1979 - J 1983 – N 1987 - T 1991 - Y 1995 - D 1999 - H 2003 - M
1972 - B 1976 - F 1980 - K 1984 – P 1988 - V 1992 - A 1996 - E 2000 - J 2004 - N
1973 - C 1977 - G 1981 - L 1985 – R 1989 - W 1993 - B 1997 - F 2001 - K 2005 - P
1974 - D 1978 - H 1982 - M 1986 – S 1990 - X 1994 - C 1998 - G 2002 - L 2006 - R

[Jae Williams]

Originally Posted by gkoehl

For that you will need to get Preston's Guide (highly recommended)
Or Carrier Bluebook (okay in a pinch not as good as Preston's)

Remember, Preston's works with Model number instead of the Serial number.

[gkoehl]

Originally Posted by jwilliams4

Remember, Preston's works with Model number instead of the Serial number.

Yes, Jae, You are correct.
Sorry about that.

So- use preston's if you want to age a unit via Model #

[Joel Willaby]

Thank you so much for the info .I can use this untill i get a Prestons guide.


JOEL WILLABY

[waksell]

This is what I have for water heaters. Feel free to steal it, I did.

Water Heater Manufacture Dates From Serial Numbers

American - The first two numbers are the year, and the second two numbers are the week.

AO Smith -Can be confusing; digits may be comprised of letters & numbers. May be one, two, or no letters.
If two letters first, next two numbers are year.
If one letter first, followed by two numbers and another letter, next two numbers are year.
If one letter first, next two numbers are year, providing no letter follows.
If two numbers first, this is year.

Bradford-White - They use a 20-year cycle. They skip the letters I, O, Q, R, U, V to make the full cycle.
1st Letter is the year. 2nd letter is the month.



A=84 B=85 C=86 D=87 E=88 F=89 G=90 H=91 J=92 K=93 L= 4 M=95
N=96 P=97 S=98 T=99 W=00 X=01 Y=02 Z=03 A=04 B=05 C=06 D=07

Lochinvar - Same as Bradford-White.

Rheem - The first two numbers are the month and the next two are the year.

State - 1st position indicates the month. 2nd and 3rd position indicates the year.
97 =1997, 98 =1998, 99 =1999, 00 =2000, 01 =2001, 02 =2002


Water Heater Brand Manufactures





Brand Name --- Manufacturer
A.O. Smith --- A.O.Smith
ABS --- Rheem
Ace --- State
Ace --- American
Ambassador --- State
American --- American
American Hardware --- American
Apex -- American
Aqua Temp --- American
Aqua Therm -- Rheem
Aqua Therm --- American
Aquamatic --- American
Barnett --- State
Best --- American
Best Deluxe --- American
Bradford White --- Bradford-White
Century --- State
Champion --- American
Cimarrom --- Rheem
Citation --- Rheem
Coast to coast --- Rheem
Craftmaster --- American
Crosley --- State
De-Limier --- American
Deluxe --- American
Eagle --- American
Earl’s Energy Saver --- American
Energy Master --- Rheem
Energy Saver --- Lochinvar
Energy Stretcher --- State
Environtemp --- American
Four Most --- American
Freedom --- State
Freedome/Nipsco --- State
General Electric --- Rheem
Glascote --- A.O.Smith
Golden Knight --- Lochinvar
Hardware House --- State
Hotmaster --- American
Hotstream --- American
Intertherm & miller --- Rheem
Jetglas --- Bradford-White
King-Cleen --- American
King-Line --- American
Knight --- Lochinvar
Lochinvar --- Lochinvar
Lowe’s --- Rheem
Mainstreem --- Rheem
Master Plumber --- American
Master plumber/True5 --- State
Mission --- State
Montgomery Ward --- Rheem
Mor-Flo/American --- American
Nationaline ? --- American or State
Neptune --- American
Patriot --- State
Penfield --- State
Penguin --- American
PermaGlas --- A.O.Smith
Praline --- American
Praline-Plus --- American
President --- State
Prestige --- American
Professional --- Rheem
Pro Line --- American
Quaker --- American
Quick-Flo -- American
Raywall --- American
Regency--- State
Reliance --- State
Revere --- American
Rheem --- Rheem
Rheem/Ruud --- Rheem
Richmond --- Rheem
Riveria --- American
Ruud --- Rheem
U.S. Craftmaster --- American
SABH (US) --- American
Sands --- American
Sentinel --- American
Service-Star --- American
Servi-Star --- Rheem
Shamrock --- American
Special Deluxe --- American
Standard --- American
State/Kenmore --- State
Super Eagle --- American
Sure-Fire --- American
The Plumbery --- State
Thermo-King --- State
Thoro-clean --- American
TopLine --- State
Tru Value --- American
True Value --- Rheem
Tru-Test --- American
U.S. Supply --- American
Vanguard --- Rheem
Vista Therm --- Rheem
Whirlpool --- American
XCL-Energy Saver --- America

[Russel Ray]

Originally Posted by gkoehl

For that you will need to get Preston's Guide (highly recommended)
Or Carrier Bluebook (okay in a pinch not as good as Preston's)

Best for serial numbers is the Technical Reference Guide by Carson Dunlop.

[John J. Passailaigue, Jr.]

Consider it stolen! Good info.