Go Back   InterNACHI Inspection Forum > Specific Inspection Topics > Inspecting HVAC Systems

Notices

Inspecting HVAC Systems Topics include heating, venting, and air conditioning inspections.

Reply
 
LinkBack Thread Tools
  #1  
Old 1/2/06, 6:07 AM
David P. Valley's Avatar
David P. Valley David P. Valley is offline
InterNACHI Member
 
Join Date: Jun 2003
Location: METHUEN, MA
Posts: 8,766
Default HVAC Manufacture dates

I'm bringing this over here for future reference...



HVAC AGE CODES IN SERIAL # INFO


Amana: BLACKHORSE. B=1971 or 1981. (Of course, now that they've been bought by Goodman, who knows what'll happen.)

BARD 1962 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. (The letter A in the Sample represents January).
A = January
B = February
C = March
D = April
E = May
F = June
G = July
H = August
Letter I was not used.
J = September
K = October
L = November
M = December

8th digit is the year of Manufacture. (The letter D in the Sample represents 1964).
1962 = B
1963 = C
1964 = D
1965 = E
1966 = F
1967 = G
1968 = H
Letter I was not used.
1969 = J
1970 = K
1971 = L
1972 = M
1973 = N
1974 = O
1975 = P
Letter Q was not used.
1976 = R
1977 = S
1978 = T
1979 = U
1980 = V


Bard April & May 1980

Sample number 123 D A 123456

1st three digits are the Compressor Part Number.

4th digit is the month of Manufacture. In this sample D represents April.
D = April
F = May

5th digit is the year of Manufacture. In this sample A represents 1980.
1980 = A

This serial number style was only used during the months of April & May 1980.

6th thru 11th digits represent the Unit Identity Number.


Bard June 1980 to Current

Sample number 123 H80 1234567 02

1st three digits = Compressor Part #

4th digit = Month
A = January
B = February
C = March
D = April
E was not used
F = May
G was not used
H = June
I was not used
J = July
K = August
L = September
M = October
N = November
O was not used
P = December

5th & 6th digits = Year

80 = 1980
81 = 1981
82 = 1982
right on thru. The year 2000 started the numerical numbering from 00.
00 = 2000
01 = 2001
02 = 2002
right on thru to current date.

7th thru 13th digits = Unit Identity #

14th & 15th digits = Factory Code (01=OH; 02=GA)


Carrier, Bryant, Payne, Day & Night: Recently (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.

Coleman: Serial 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.

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

First Company Service Parts is 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.

Goodman: First two digits of the serial number are the year. Second two are the month.
Btu rating is model number..ie; GMP075-3 (75,000 bonnet input)
Compressor is same :serial # 9709088872 (yr1997 wk 09) Tonnage is model # CK361C The first two numbers after the CK (letters) divided by 12 is tons. ie: 36 div by 12= 3 tons.

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 (A thru M minus I). So 5898G 07568 would be Plant # 58, Year of MFR would be 98 and month would be July.

Rheem & Rudd: in the middle of the serial number will be a letter "F" the following four numbers are the week and year.
The first letter of the serial number gives the year of manufacture as follows:

TRANE
Trane uses 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:

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.

Z=2001
R=2000
P=1999
N=1998
M=97
L=96
K=95
J=94
H=93
G=92
F=91
E=90
D=89
C=88
B=87
S=86
Y=85
X=84
W=83
U=82(seventh digit)
T=81(seventh digit)
O, A=80(seventh digit)


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

1971 - A
1972 - B
1973 - C
1974 - D
1975 - E
1976 - F
1977 - G
1978 - H
1979 - J
1980 - K
1981 - L
1982 M
1983 N
1984 P
1985 - R
1986 - S
1987 - T
1988 - V
1989 - W
1990 - X
1991 Y
1992 A
1993 - B
1994 - C
1995 D
1996 - E
1997 - F
1998 - G
1999 - H
2000 - J
2001 - K
2002 - L
2003 - M
2004 - N
2005 - P
2006 - R
2007 - S
Reply With Quote
  #2  
Old 1/2/06, 8:25 AM
Larry Kage, CMI Larry Kage, CMI is offline
InterNACHI Member
 
Join Date: Jul 2004
Location: NW, MI
Posts: 10,841
Default Re: HVAC Manufacture dates

Thanks, Dave. I was just redoing mine...this is faster.
Reply With Quote
  #3  
Old 1/2/06, 1:45 PM
Jae Williams Jae Williams is offline
InterNACHI Member
 
Join Date: Feb 2005
Location: Sharonville, OH
Posts: 5,479
Default Re: HVAC Manufacture dates

Good job, Dave.
I thought about doing that, but thinking always gives me a headache.

It's a good thing you're around.



"not just an inspection, but an education"

www.homesweethomecincinnati.com

Democracy is two wolves and a lamb.
Liberty is a well-armed lamb. B. Franklin
Reply With Quote
  #4  
Old 1/2/06, 5:49 PM
David P. Valley's Avatar
David P. Valley David P. Valley is offline
InterNACHI Member
 
Join Date: Jun 2003
Location: METHUEN, MA
Posts: 8,766
Default Re: HVAC Manufacture dates

Bill,

It would be great if you could post your Bradford White (and any other water heater) information that you may have, in the Plumbing forum.
Reply With Quote
  #5  
Old 1/2/06, 5:54 PM
jhanna1's Avatar
jhanna1 jhanna1 is offline
InterNACHI Member
 
Join Date: Oct 2005
Location: Rochester, NY
Posts: 110
Default Re: HVAC Manufacture dates

Thank's for the info Dave!
Reply With Quote
  #6  
Old 1/3/06, 5:28 AM
Russel Ray's Avatar
Russel Ray Russel Ray is offline
InterNACHI Member
 
Join Date: Mar 2003
Location: La Mesa, CA
Posts: 17,323
Default Re: HVAC Manufacture dates

"Technical Reference Guide"
Published by Carson Dunlop Weldon & Associates, Toronto, 2001
ISBN 1-895585-90-2
http://www.carsondunlop.com

This is exactly why we need to sort through the archives, pull out all the reference materials, and publish them somewhere.

http://www.nachi.org/forum/showthread.php?t=95
Reply With Quote
  #7  
Old 1/3/06, 8:24 AM
Bill Smith's Avatar
Bill Smith Bill Smith is offline
InterNACHI Member
 
Join Date: Jun 2003
Location: East Northport, NY
Posts: 1,241
Default Re: HVAC Manufacture dates

Here are a few more--

Weil-McLain

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

Peerless

Prior 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.



"A man cannot be truly grateful and remain unhappy"
http://www.SmithHomeInspection.com
SmithHomeInspection@yahoo.com
https://www.facebook.com/SmithHomeInspection
NY State Lic. # 16000008304
631-434-5200

Reply With Quote
  #8  
Old 11/12/06, 5:46 PM
James H. Bushart's Avatar
James H. Bushart James H. Bushart is offline
InterNACHI Member
 
Join Date: Dec 2004
Location: Missouri
Posts: 24,654
Default Re: HVAC Manufacture dates

Can anyone help me date a Frigidaire model FS3BA, serial FS3000752901 ?
Reply With Quote
  #9  
Old 11/12/06, 8:08 PM
Russel Ray's Avatar
Russel Ray Russel Ray is offline
InterNACHI Member
 
Join Date: Mar 2003
Location: La Mesa, CA
Posts: 17,323
Default Re: HVAC Manufacture dates

July 2000



NACHI 2005 U.S. Member of the Year
Reply With Quote
  #10  
Old 4/8/08, 4:08 PM
Darrell L. Freshour's Avatar
Darrell L. Freshour Darrell L. Freshour is offline
InterNACHI Member
 
Join Date: Jun 2005
Location: Riverside, Oh
Posts: 65
Default Re: HVAC Manufacture dates

Please note Rheem & Rudd: as follows... is missing info below
Help anybody ?
Reply With Quote
  #11  
Old 4/8/08, 4:13 PM
David P. Valley's Avatar
David P. Valley David P. Valley is offline
InterNACHI Member
 
Join Date: Jun 2003
Location: METHUEN, MA
Posts: 8,766
Default Re: HVAC Manufacture dates

Quote:
Originally Posted by dfreshour
Please note Rheem & Rudd: as follows... is missing info below
Help anybody ?
Darrell,

Rheem or Ruud

Capacity: Look for those elusive two digits in the model number (usually, but not always) divisible by 6 and divide by 12 to convert to tons.
Example: RPGC-037JA = 3 ton

Age: Four digits of serial number indicate date of manufacture where first two indicate the week and the third and fourth are the year. In the 1960s and early 70s this was the last four digits. More recently date of manufacture information is found closer to the middle of the serial number.
Example: xxxx1872 = 18th week of 1972
Reply With Quote
  #12  
Old 4/8/08, 4:19 PM
Russel Ray's Avatar
Russel Ray Russel Ray is offline
InterNACHI Member
 
Join Date: Mar 2003
Location: La Mesa, CA
Posts: 17,323
Default Re: HVAC Manufacture dates

Quote:
Originally Posted by dvalley
More recently date of manufacture information is found closer to the middle of the serial number.
Example: xxxx1872 = 18th week of 1972
Usually right after a letter, which is the manufacturing plant number:

11111F187211111

Sometimes you'll find nice spaces mixed in there:

11111 F1872 11111



NACHI 2005 U.S. Member of the Year
Reply With Quote
  #13  
Old 2/8/11, 4:13 PM
Gary L. Osborn Gary L. Osborn is offline
InterNACHI Member
 
Join Date: Jul 2004
Location: Lake City, FL
Posts: 4
Default Re: HVAC Manufacture dates

Dave,
Appreciate info on the YORK HVAC system. I have a Borg/Warner that has a NGPM as the 1st 4 letters of the Serial # I read this as a 1984 Unit.

Gary Osborn
Reply With Quote
Need a home inspection in Michigan? Check out InterNACHI's listing of Michigan certified home inspectors. Or, find a home inspector anywhere in the world with our inspection search engine.
  #14  
Old 6/2/12, 11:39 PM
Jay Mathy Jay Mathy is offline
InterNACHI Member
 
Join Date: Dec 2008
Location: Orlando, FL
Posts: 13
Default Re: HVAC Manufacture dates

First Company - The first alpha character denotes the year and the second two digits denote the month. Using the alphabet from A-Z, A = 1994, B = 1995, C = 1996, D = 1997, E = 1998, F = 1999 G = 2000, H = 2001, J = 2002, K = 2003, M = 2004, N = 2005, P = 2006, R = 2007 ..... (the characters I, O, and Q are skipped). An example would be C05 = 1996, May
Reply With Quote
  #15  
Old 6/22/13, 2:40 PM
Michael Bucy Michael Bucy is offline
InterNACHI Member
 
Join Date: Aug 2009
Location: West Lafayette Indiana
Posts: 2
Default Re: HVAC Manufacture dates

I must live in a different dimension than the rest of you. Every bard serial number I have ever seen is in the format 12345 AB. Doesn't match anything on this page. The one I now have is 88591 FS. Can anybody tell me the date of manufacture.
Attached Thumbnails
heating-venting-air-conditioning-manufacture-dates-krueger_055.jpg  
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Access to Electrical Panel in Ontario by HVAC Contractors Nalliah Thayabharan Canadian Inspectors 10 5/21/07 3:01 PM
Condemned Furnaces Spark Safety Issues Gary Reecher Inspecting HVAC Systems 7 3/8/07 8:17 PM
Appliance Manufacture Dates bayside General Inspection Discussion 1 7/1/06 12:01 PM
Help with HVAC dates jsmith3 Inspecting HVAC Systems 5 3/2/06 12:46 AM
Singer HVAC dates? jsmith3 Inspecting HVAC Systems 3 1/27/06 8:43 AM

All times are GMT -4. The time now is 12:47 AM.
no new posts