Carrier A/C unit Age? Re: Carrier A/C unit Age? The date of manufacture is January 1986. Did ya mean to say 1990's through current I believe Carrier used a serial number format of "ANNNNNN" from 1969 to 1990, and then switched over to the current NNNNANNNNN serial number format. Consulting Engineer & Inspector LIU CW Post Adjunct Professor I am absolutely amazed sometimes by how much thought goes into doing things wrong ... BB code is On [IMG] code is On Age of Carrier unit? Help with age of Carrier A/C unit how do i verify my age and tonage og a carrier unitHelp with age of Carrier A/C unit how do i verify my age and tonage og a carrier unitCan you tell the age of an air conditioner by the serial number? In many cases, one can determine the date of manufacture of an air conditioning unit by means of the serial number. However, different manufacturers encode the dates onto the serial numbers differently. How do you find out an air conditioner's SEER rating?

What is the average lifespan of an air conditioner fan relay? Manufacturers have particular coding mechanisms in serial numbers that represent the month and year or group of years in which the unit was built. For example, General Electric HVAC units have 11-character serial numbers. The first letter represents the month and the second letter represents a group of years. how to disconnect a ac unitFor example, a "ZT" represents December and the years 2010, 1998, 1986, 1974 or 1960.air conditioning unit stopped running Some manufacturers have multiple serial formats. parts of a car ac compressorFor example, Samsung HVAC units have 10, 14 or 15 alphanumeric characters. In the 10-digit format, the fourth and fifth character represent the year and month respectively.

Trane has eight known styles of serial numbers and sometimes lists the date in a separate field. What is a 10000 BTU air conditioner? A 10,000 BTU air conditioner refers to the size of the air conditioning unit and the amount of area it can cool, which is approximately 450 square feet. How do you determine the tonnage of Goodman AC units? Goodman air conditioning unit tonnage can be determined by the unit's model number. This number is located on a plate attached to the back of the unit, nea... How many watts does it take to run a 13,500 BTU air conditioner? The wattage needed for an air conditioner to remove a given number of British thermal units varies depending on the efficiency of the unit. Are swamp coolers energy efficient? What is a gable attic fan? What are common components found in bathroom fans? How efficient are modern wood burning stoves? How much do Carrier replacement AC parts cost? How do you get an 855 number? Re: Help with age of Carrier A/C unit

That first digit should be the letter O and not the number zero, which would give you February 1986. House Key News Getting your past Clients to work as hard for you as you worked for them. NACHI 2005 U.S. Member of the Year My research indicates that they apparently didn't like the convention that everyone else was using (A = January, skip "I"), so they did Here's what's interesting, though. In order to get from N to Z, one has to leave out a letter. Usually one leaves out the letter "O" since it can be confused with the number "0" (the letter usually is fatter than the number, which can help in copying numbers if one compares the letter/number to other letters/numbers on the manufacturing plate). I do have confirmed serial numbers from January (N) through July (T), and the only way to get from N to T is to include O. I also have other confirmed serial numbers with the letter O, in addition to the one here. My research is incomplete from August to December, so I don't know which letter they left out.

I suspect X since it's commonly used to mark the spot. This is a good link for info on air conditioners, For A C age info follow the link below. Thanks Russel & Greg. This is what makes NACHI great! Wisconsin Home Inspector License 1955-106 4-Square Home Inspections, LLC � Where Knowledge will put your Mind at Ease � BBB A+ Accredited Business Like Us on Facebook Follow Us on Linked-In That one is April 1986. NACHI 2005 U.S. Member of the Year Born November 26, 1876, in Angola, New York Earned engineering degree from Cornell University in 1901 Started working at Buffalo Forge Company in 1901 Designed the world’s first modern air conditioning system in 1902 Developed Rational Psychrometric Formulae in 1911 Founded Carrier Engineering Corporation in 1915 Awarded honorary doctorates from Lehigh University (1935) and Alfred University (1942) Died October 7, 1950, in New York City Inducted into the National Inventors Hall of Fame in 1985

Named one of TIME magazine’s “100 Most Influential People of the 20th Century” in 1998 Willis Carrier would grow up to solve one of mankind’s most elusive challenges – controlling the indoor environment. As a child, though, he had difficulty grasping the concept of fractions. Realizing his struggles, his mother taught him by cutting whole apples into various-sized fractional pieces. He later said this lesson was the most important one that he ever learned because it taught him the value of intelligent problem-solving. Willis Carrier: The Inventor of Modern Air Conditioning Genius can strike anywhere. For Willis Carrier, it was a foggy Pittsburgh train platform in 1902. Carrier stared through the mist and realized that he could dry air by passing it through water to create fog. Doing so would make it possible to manufacture air with specific amounts of moisture in it. Within a year, he completed his invention to control humidity – the fundamental building block for modern air conditioning.

Carrier Enables Industries to Flourish The “Father of Air Conditioning,” Willis Carrier’s invention gave rise to numerous industries that power our economy today. Manufacturing of everything from baked goods to wartime supplies was made possible by air conditioning. Air conditioning led directly to summer movie blockbusters as people came to cooled theaters to escape the heat. The precise control of temperature and humidity made possible by his invention even enabled shopping malls, transatlantic flight, and the computers and servers that power the Internet. Bringing Comfort to the World Willis Carrier recognized early on that climate, comfort and production requirements would determine the value of air conditioning. From the beginning, he began to develop a network of international dealers, distributors and customers. Success with early installations in Europe and Asia were indicators of air conditioning’s universal application across international borders.