Daikin® HVAC age

How to determine the date of production/manufacture or age of Daikin® brand HVAC Systems.

The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little as 10 years to as many as 50 years depending on the type and quality of materials used in their manufacture. Routine upkeep/maintenance, regional weather/climate, and location/placement of the mechanical systems will all play critical roles in the longevity of these systems.

See also: Estimated Useful Service Life Expectancies

Parent Company: Operating as subsidiary of Daikin Group

Subsidiaries or other related brands: Goodman (GmC), Amana, Janitrol, Daikin

The date of production/manufacture or age of Daikin brand HVAC equipment can be determined from the serial number located on the rating data plate.

Example serial number styles/formats found:

  • Style 1:    A000129 with MFG. DATE 2008-1

  • Style 2:    FBOU0905048200

  • Style 3:    20444501000138 (see appropriate style section below)

  • Style 4:    049270032

  • Style 5:    55A1234501

  • Style 6:    5PB1234503

  • Style 7:    R881212345

  • Style 8:    123045667890M151234

  • Style 9:    YA123456

  • Style 10:    1602393269

Legend:  Year is RED;  Month is GREEN; Week is BLUE

Style 1:   A000129 with MFG. DATE 2008-1

Year of manufacture can only be determined by using the listed manufacture date on the date plate

Month of manufacture can only be determined by using the listed manufacture date on the date plate label

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Style 2:   FBOU0905048200

Year of manufacture can be determined by using the 5th and 6th characters (1st two digits after 4 prefix letters)

Month of manufacture can be determined by using the 7th and 8th characters (3rd & 4th digits after 4 prefix letters)

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Style 3:   20444501000138

Year of manufacture can be determined by using the 1st through 4th digits of the serial number (not actual year - see chart below)

Week of manufacture can be determined by using the 5th & 6th digits of the serial number

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Style 4:   049270032

Year of manufacture can be determined by using the 3rd digit of the serial number (see chart below)

Week of manufacture can be determined by using the 4th & 5th digits of the serial number

NOTE: This style used from late 1970's through 1980's

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Style 5:   55A1234501

Year of manufacture can be determined by using the 2nd digit of the serial number (see chart below)

Week of manufacture can be determined by using the 3rd character (letter) of the serial number (see chart below)

NOTE: This style used from 1995 to 1999 and is similar to style 6 below

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Style 6:   5PB1234503

Year of manufacture can be determined by using the 2nd character (letter) of the serial number (see chart below)

Month of manufacture can be determined by using the 3rd character (letter) of the serial number (see chart below)

NOTE: This style used from 1971 to 1994 and is similar to style 5 above

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Style 7:   R881212345

Year of manufacture can be determined by using the 2nd & 3rd digits of the serial number

Week of manufacture can be determined by using the 4th & 5th digits of the serial number

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Style 8:   123045667890M151234

Year of manufacture can be determined by using the 11th character (1st letter) of the serial number

Week of manufacture can be determined by using the 12th & 13th digits (after the letter) of the serial number

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Style 9:   YA123456

Year of manufacture can be determined by using the 1st letter of the serial number

Month of manufacture can be determined by using the 2nd letter of the serial number

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Style 10:   1602393269

Year of manufacture can be determined by using the 1st & 2nd numbers of the serial number

Month of manufacture can be determined by using the 3rd & 4th numbers of the serial number

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Daikin® History¹
  • 1924 - The company was founded as Osaka Kinzoku Kogyosho Ltd by Akira Yamada, a Japanese engineer who started the business manufacturing parts for aircraft, along with the pressing and drawing of metals and radiator tubes – the word "Kinzoku" means metal in Japanese.
  • 1951 - Daikin became the first company in Japan to manufacture packaged air conditioning systems.
  • 1958 - Daikin brought the first heat pump to the market. With the launch of the rotary compressor, Daikin became the first Japanese manufacturer to create a compact, hermetically sealed compressor.
  • 1991 - Daikin establishes Daikin America, Inc.
  • 2006 - Daikin acquires O.Y.L. Industries which then owned McQuay International and AAF International (AAF-McQuay Inc. collectively). AAF and McQuay become members of Daikin Group, with global headquarters in Louisville and Minneapolis respectively.
  • 2008 - Daikin enters production agreement with Gree Electric Appliances.
  • 2012 - Daikin acquires Goodman Manufacturing.
  • 2013 - Daikin dropped the McQuay name, ending 80 years of business for the name. AAF International and Goodman Manufacturing remain as subsidiaries. European operations changed its name to Daikin Applied Europe. Daikin expands use of R32 to India markets.
  • 2015 - Daikin acquires leading chemical manufacturer Solvay, a refrigerant manufacturer. Grants worldwide free access of basic patents for air conditioners using R32 refrigerant.
  • 2016 - Daikin completes 4.2 million square foot, state-of-the-art facility and consolidates Goodman's HVAC manufacturing, logistics, and customer support under one roof - Daikin Texas Technology Park campus, Houston, Texas.

1Excerpts from various industry sources and Daikin https://www.daikin.com/air/daikin_achievements/innovation

Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC/R equipment. Users relying on this information do so at their own risk.
Page last updated: 03/04/