# Serial Number Explanation

The table below designates the serial numbers and lid styles based on the year manufactured.

Lid Style | Serial Number | Year |
---|---|---|

D | 00152 - 00269 | 1959 |

D | 00270 - 00550 | 1960 |

D | 00551 - 00739 | 1961 |

D | 00740 - 00963 | 1962 |

D | 00964 - 01292 | 1963 |

D | 01293 - 01457 | 1964 |

D | 01458 - 01667 | 1965 |

D | 01668 - 02023 | 1966 |

D |
02024 - 02453 |
1967 |

D | 02454 - 03622 | 1968 |

D |
03623 - 04946 |
1969 |

D | 04947 - 10789 | 1970 |

1st Modification |
10790 - 11377 |
1971 |

1st Modification | 11378 - 12237 | 1972 |

1st Modification |
12238 - 13402 |
1973 |

1st Modification | 13403 - 15295 | 1974 |

1st Modification |
15296 - 17617 |
1975 |

n/a | 17618 - 19907 | 1976 |

n/a |
19908 - 22215 |
1977 |

n/a | 22216 - 25380 |
1978 |

n/a |
25381 - 29386 |
1979 |

n/a | 29387 - 33778 | 1980 |

n/a |
33779 - 37195 |
1981 |

n/a | 37196 - 40284 | 1982 |

n/a |
40285 - 44029 |
1983 |

n/a | 44030 - 48320 | 1984 |

n/a |
48321 - 51999 |
1985 |

No parts are available for D style lids or 1st Modification lids. Part 182530 must be ordered.

Serial numbers for products manufactured from 1986 to 2003 can be explained by the following formula:

Month Character + Product Type Character + Unit Number + Year Characters

Month Character | Month |
---|---|

A | January |

B | February |

C | March |

D | April |

E | May |

F | June |

G | July |

H | August |

I | September |

J | October |

K | November |

L | December |

Fryer Product Type = A

Unit Number = 3 digit sequence (000)

Character | Year |
---|---|

HF | 1986 |

HG | 1987 |

HH | 1988 |

HI | 1989 |

IJ | 1990 |

IA | 1991 |

IB | 1992 |

IC | 1993 |

ID | 1994 |

IE | 1995 |

IF | 1996 |

IG | 1997 |

IH | 1998 |

II | 1999 |

JJ | 2000 |

JA | 2001 |

JB | 2002 |

JC | 2003 |

For example, a serial number of CA016IB indicates:

(C = Month) + (A = Model Fryer) + (016 = the 16th unit manufactured) + (IB = Year)

or the 16th Model 600 Fryer manufactured in March 1992

Serial numbers for products manufactured from 2004 to present can be explained by the following formula:

Product type characters + Last two digits of year + Two digit month + Three digit sequence

For example, a serial number of AA0409123 indicates:

(AA = Product) + (04 = Year) + (09 = Month) + (123 = Three digit sequence)

or the 123rd product manufactured in September 2004

Serial numbers for MKN combi-steamers manufactured from 2004 to present can be explained by the following formula:

Last Two Digits of Year + Six Digit Sequence

For example, a serial number of 06000001 indicates:

(06 = Year) + (000001 = Six digit sequence)

or the 1st product manufactured in 2006

### Manufactured before June 1997

Serial numbers for Rational combi-steamers manufactured before June 1997 can be explained by the following formula:

Line + Size + Model + Last two digits of year + Two digit Month + Certified + Three digit sequence

Size Options: (61=61 11=10 12=1020 21=20 22=40)

Model Options: (D=B M=M C=L)

For example, a serial number of C61D9706N005 indicates:

(C = Product Line) + (61 = Size) + (D = Model) + (97 = Year) + (06 = Month) + (N = NSF/UL Certified) + (005 = Three digit sequence)

or the 5th C-line, Size 61, Model B, NSF/UL Certified Rational combi-steamer built in June 1997

### Manufactured between June 1997 and December 1998

Serial numbers for Rational combi-steamers manufactured between June 1997 and December 1998 can be explained by the following formula:

Heat Type (Gas or Electric) + Size + Model + Revision + Last two digits of year + Two digit month + Certified + Three digit sequence

Size Options: (61=61 11=10 12=1020 21=20 22=40)

Model Options: (D=B M=M C=L)

For example, a serial number of E61CA97069005 indicates:

(E = Heat type) + (61 = Size 61) + (C = Model) + (A = First revision) + (97 = 1997) + (06 = Month) + (9 = NSF/UL Certified) + (005 = Three digit sequence)

or the 5th size 61, Model L, Revision A, NSF/UL certified electric Rational combi-steamer built in June 1997

### Manufactured after 1999

Serial numbers for Rational combi-steamers manufactured after 1999 can be explained by the following formula:

Heat Type (Gas or Electric) + Size + Model + Revision + Last two digits of year + Two digit month + Seven digit sequence

Size Options: (61=61 11=10 12=1020 21=20 22=40)

Model Options: (D=B M=M C=L)

For example, a serial number of E22MA99011000334 indicates:

(E = Heat type) + (22 = 40) + (M = Model) + (A = First Revision) + (99 = Year) + (01 = Month) + (1000334 = Seven digit sequence)

or the 1,000,334th Model M, Revision A, Size 40, electric heat Combi-steamer built in January 1999

Serial numbers for Rational Ultravent manufactured after April 2005 can be explained by the following formula:

Last two digits of part number + Last two digits of year + Hardware index + Two digits of day + Two digits of month + Five digit sequence

For example, a serial number of 740511504-12345 indicates:

(74 = Last two digits of 60.70.374) + (05 = Year) + (1 = Hardware index) + (15 = Day) + (04 = Month) + (12345 = Five digit sequence)

or the 12,345th Rational Ultravent manufactured on April 15th, 2005.

Serial numbers for "IFI" cold and hot cases can be explained by the following formula:

Second to last digit of year + Character representing last digit of year + Character representing month + Three digit sequence

For example, a serial number of 0AC034 indicates:

(0 = Second to last digit of year) + (A = Last digit of year) + (C = Month) + (034 = Three digit sequence)

or the 34th unit manufactured in March 2001

See Month Character Explanation

Character | Year |
---|---|

A | 1 |

B | 2 |

C | 3 |

D | 4 |

E | 5 |

F | 6 |

G | 7 |

H | 8 |

I |
9 |

J | 0 |

### Before September 2000

Serial numbers for Blast / Chillers manufactured before September 2000 can be explained by the following formula:

Product Number + Revision + Four digit sequence + Character representing Year + Single digit Month

For example, a serial number of 62902A222R4 indicates:

(62902 = Product number) + (A = Revision*) + (2222 = Four digit sequence) + (R = Year) + (4 = Month)

or the 2,222nd Product 62902 revision A blast /chiller manufactured in April

* Revision may be omitted for initial release of product

### After September 2000

Serial numbers for Blast / Chillers manufactured after September 2000 can be explained by the following formula:

Model Number + Revision + Six digit sequence + Two digit week of year + Last two digits of year

For example, a serial number of 12345678 A 123456 01 00 indicates:

(12345678 = Model Number) + (A = Revision) + (123456 = Six digit sequence) + (01 = Week of year) + (00 = Year)

or the 123,456th Model 12345678 Revision A blast / chiller manufactured the first week of January 2000