Dating a coleman furnace

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The following are brands of boilers commonly found in southeast Michigan. This list is not all encompassing, and mistakes are bound to happen. A contentious effort was made to provide the correct information to assist in determining the age of the boiler, but due to the numerous manufactures and the variations of dating codes, no liability can be assumed. For Bryant boiler manufactured form to the present, the date code is embedded in the first four placeholders of the serial. Bryant boilers manufactured from toa 7-digit serial was used. Newer Burnham boilers have the date of manufacture listed in Dating a coleman furnace upper right-hand corner of the data sticker.

Older Burnham boilers have a Byzantine age code.

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Look for the ANSI date and add several year to get a rough approximation of the age, or contact the manufacturer. Dunkirk uses the first two digits of the serial for the week, and the next two digits for the year.

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Between andthe set of s after the dash were the month and year of manufacture MMYY. Beginning inthe first set of s is the sequencethe set of s after the dash is the year and month -YYYYMM. The first digit or letter in the serial represents the month, and the next two digits represent the production year MYY.

Weil-McLain ass a serial to each boiler. The following chart can be used to date the boiler by the serial :. The following are brands of furnace and central air conditioners commonly found in southeast Michigan. This list is not an all encompassing list, however, a contentious effort was made to provide the correct information to assist in determining the age of the HVAC Heating, Ventilation, and Air Conditioning equipment despite the numerous manufactures and the variations of dating codes.

First, when dating an Dating a coleman furnace unit, first look at the data tag, the manufacturing Dating a coleman furnace may be displayed on the data sticker. Second, look for the serial. Sometimes the date is hidden within the serial. For example, C12 could indicate that the water heater was constructed in March of Also look at the serial. If there are 4 numerals at the start of the serialthe first two s could represent the year, the next two numerals could represent the month or the week of manufacture, or vice versa.

Third, if the date of manufacture is not immediately evident a little sleuthing around the label may reveal the date of manufacture. The four digits after the referenced standard authority usually represent the code or standards to which the furnace or air conditioner was constructed.

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Newer American Standard products have the month and year of manufacture on the date sticker. If the date is not readable or present on the data sticker, American Standard uses several dating codes in their serial s.

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The first code format would is the production year is the first numeral in the serial followed by the week YWW. A second code format is the first placeholder in the serial is a letter representing the month followed by two digits for the year MYY. An older code format is the first two digits of the Dating a coleman furnace represent the year, and the next two digits represent the month YYMM.

Armstrong uses three methods of imbedding the date codes in the serial s. With the first method, the first two numerals of the serial represent the year, and the next two numerals represent the week YYWW. The second method uses the first two digits of the serial represent the week, and the third and forth s represent the year of manufacture WWYY.

The third method uses the third and fourth placeholders of the serial are numerals that represent the year of manufacture. For Bryant, Payne, and Carrier HVAC products manufactured form to the present, the date code is embedded in the first four placeholders of the serial. The first two numerals in the serial is the week of manufacturer 01 to 52 weeks in the yearand the third and fourth digits are the year. Ducane uses several serial date codes.

These units are beyond the expected service life. The first place holder in the serial is a letter for the month followed by two numerals representing the year MYY. The date code for Magic Chef is in the third and second from last place holders in the serial. The third from last letter is the month, and the second from last letter is the year. The York family of HVAC equipment uses several date codes, some inherited by acquisitions of other brands. The following three formats can help date the majority of the HVAC units in the family:. Dating a coleman furnace simplest format is first two s in the serial are year, the next two s are the month YYMM.

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For and after, a ten-place serial is used. The first place holder is a letter, the second place holder is a digit which represents the first of the year manufactured, the third place holder is a letter followed by the fourth place holder being a digit that represents the second of the year manufactured. For and years, the third placeholder in the serial is a letter.

This letter represents the year. The following list of brands are of water heaters commonly found in southeast Michigan. This list is not an all encompassing list, however, a contentious effort was made to provide the correct information Dating a coleman furnace assist in determining the age of the water heater despite the numerous manufactures and the variations of dating codes.

First, when dating a water heater, first look at the data tag, the manufacturing date may be displayed on the data sticker. The four digits after the referenced standard authority usually represent the code or standards to which the water heater was constructed.

The first two digits in the serial represent the year, the next two digits represent the week of manufacture. Prior toAO Smith used the second letter as the month code followed by 2-digits which represent the year. For example, F08 is the sixth month of AfterAO Smith used the first two digits in the serial to represent the year followed by more numerals representing the week. For example, is the sixth week of Rheem uses a 2-digit month followed by a 2-digit year.

For example, represents the sixth month followed by the year. Or June of BeforeState used a code having the first letter representing the month and the next two digits representing the year. For and after, use A. The Dating a coleman furnace two digits in the serial are the year followed by two more for the week. Bryant For Bryant boiler manufactured form to the present, the date code is embedded in the first four placeholders of the serial. Burnham Newer Burnham boilers have the date of manufacture listed in the upper right-hand corner of the data sticker. Dunkirk Dunkirk uses the first two digits of the serial for the week, and the next two digits for the year.

WWYY Lochinvar through Lochinvar boilers manufactured in throughthe first placeholder in the serial is the production year. Peerless Between andthe set of s after the dash Dating a coleman furnace the month and year of manufacture MMYY. Beginning inthe first set of s is the sequencethe set of s after the dash is the year and month -YYYYMM Teledyne Laars The first digit or letter in the serial represents the month, and the next two digits represent the production year MYY. The following chart can be used to date the boiler by the serial : to An on, visit the www. For example, is interpreted as December of For years throughthe first letter in the serial is the code for the month, and the second letter is the code for the year.

See below.

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Finally, if all else fails look for the brand and the serial in the following paragraphs: Amana A member of the Goodman and Janitrol family of furnaces. American Standard Trane and Unitary Newer American Standard products have the month and year of manufacture on the date sticker. Janitrol A member of the Goodman family of furnaces. Luxaire see York Magic Chef through The date code for Magic Chef is in the third and second from last place holders in the serial. The following three formats can help date the majority of the HVAC units in the family: The simplest format is first two s in the serial are year, the next two s are the month YYMM.

Finally, if all else fails look for the brand and the serial in the following paragraphs: American also Champion, Craftmaster, Ace, Tru-Test, Whirlpool, U. Smith Prior Dating a coleman furnaceAO Smith used the second letter as the month code followed by 2-digits which represent the year. State Ace, Barnett, Kenmore, Richmond BeforeState used a code having the first letter representing the month and the next two digits representing the year.

Dating a coleman furnace

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