DAIKIN® or DAIKIN-MCQUAY® HVAC age

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

The date of production/manufacture or age of DAIKIN® HVAC equipment can be determined from the serial number or MFG. DATE located on the data plate.

Parent Company:  DAIKIN North America LLC (Subsidiary of Daikin Global aka Daikin Industries, Ltd.)

Example serial number styles/formats found:

  • Style 1:    Serial No. A000129 with MFG. DATE 2008-1
  • Style 2:    FBOU0905048200
  • Style 3:    20444501000138
  • Style 4:    049270032
  • Style 5:    55A1234501
  • Style 6:    5PB1234503
  • Style 7:    R881212345
  • Style 8:    123045667890M151234
  • Style 9:    YA123456
  • Style 10:    1602393269

Style 1:    A000129 with MFG. DATE 2008-1

The date of manufacture is coded in the MFG DATE and represents the year and month of manufacture.

Style 2:    FBOU0905048200

The date of manufacture is coded in the 5th thru 8th digits of the serial number and represents the year and month of manufacture.


Style 3:    20444501000138

The date of manufacture is coded in the 1st six digits of the serial number and represents the year and week of manufacture.

Style 4:    049270032

The date of manufacture is coded in the 3rd thru 5th digits of the serial number and represents the year and week of manufacture.

Style 5:    55A1234501

The date of manufacture is coded in the 1st & 2nd digits of the serial number and represents the year and month of manufacture. This style of serial number was used during the period of 1995 thru 1999.

Style 6:    5PB1234503

The date of manufacture is coded in the 2nd & 3rd digits of the serial number and represents the year and month of manufacture. This style of serial number was used during the period of 1971 thru 1994.

Style 7:    R881212345

The date of manufacture is coded in the 2nd thru 5th digits of the serial number and represents the year and week of manufacture.

Style 8:    123045667890M151234

The date of manufacture is coded in the 11th thru 13th digits (the only letter in the serial number followed by two numerical digits) of the serial number and represents the year and week of manufacture.

Style 9:    YA123456

The date of manufacture is coded in the 1st two letter digits of the serial number and represents the year and month of manufacture. This style of serial number was used during the period of 1964 thru 1970.

Style 10:    1602393269

The date of manufacture is coded in the 1st thru 4th digits of the serial number and represents the year and month of manufacture.

Page last updated: 10/6/2016

DAIKIN North America LLC

5151 San Felipe, Suite 500
Houston, Texas 77056
Phone: (855) 770-5678
Fax: (262) 641-8653

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