Carrier Search Serial Number WithĮxample: 56BAB0042000A0 42 size on thousands of BTU 42,000 Btu 3 ton From 1964 through 1979 Bryant encoded age information in the serial number with the first two digits indicating week of manufacture and the letter following those first two numbers indicating the year beginning R 1964: R 1964 S 1965 T 1966 U 1967 V 1968 W 1969 X 1970 Y 1971 A 1972 B 1973 C 1974 D 1975 E 1976 F 1977 G 1978 H 1979 In subsequent years Bryant simplified its system where, the first two digits of serial number Week of manufacture.Ĭarrier: Carrier has used several different codes at different plants.īeginning in 1970 Carrier began to use a letter followed by a single digit year.Įxample: A1 January 1971, B2 February 1972, M5 December 1975 Note: No letter I AJan BFeb CMar DApr EMay F Jun G Jul HAug JSept KOct LNov MDec More recently Carrier has simplified things using the first four digits of the serial number to signify the age, where the first two digits indicate the week and the third and fourth digits indicate the year of manufacture (similar to Bryant).Įxample: 3298xxxxxx 32nd week of 1998 Chrysler Air Temp: Capacity: Rating in tons found in the fourth and fifth digits of the model number 0 1 1.5 ton 2 2 ton 3 2.5 ton 4 3 ton 5 4 ton 6 5 ton Example: xx06xxxx 5 ton Climatrol: 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. To complicate matters, some manufacturers have changed their systems of encoding data over time.Īmana: Age: Use B-L-A-C-K H-O-R-S-E code B 71 or 81 L 72 or 82 A 73 or 83 C 74 or 84 K 75 or 85 H 76 or 86 O 77 or 87 R 78 or 88 S 69, 79 or 89 E 70, 80 or 90 Bryant: 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. Therefore it is often simple to scan the model number for a two-digit number that is divisible by 6 and to divide it by 12 to determine the capacity rating in tons. Manufacturers often encode the approximate rating in Btus somewhere in the model number. This section does not prohibit additional displays not inconsistent with this article.Įxample: xxxx1872 18th week of 1972 Tappan: 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.
The relevant California Vehicle (CVC) Sections 27900(a) and 27901 are copied below (with bolding added).
See this DMV website for instructions and a link to the CHP form.
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