The serial number label is located on the rear panel of the outdoor unit. The serial number label is located on the top, right-rear of the outdoor unit.

If the **trane serial** number is a 9-digit combination of letters and numbers that starts with a number, then the first number is the year. The heating and air conditioning company again made changes in year 2010. The first two digits of **trane serial** number lookup age are the year.

Secondly, how can you tell how old an HVAC unit is? Go to the outside cabinet of the air conditioning **system**. You’ll find a metal nameplate attached to it containing the **system’s** technical specs. On most units, the nameplate is fixed to the backside of the cabinet. Near the top of the nameplate you should see the manufacturer’s date as a month and year.

Similarly, where is the model number on a Trane?

Furnace **model numbers** are found on a sticker inside the front cover of a **Trane** furnace. The sticker is usually found to one side of the furnace inducer.

How can I tell how many tons my Trane AC unit is?

- For Trane, you should look for the last two numbers of the first numbers after a cluster of letters at the beginning of the model number.
- Here’s a rundown of the range you will encounter: 18 = 1.5 tons, 24 = 2 tons, 30 – 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons, and 60 = 5 tons.

### How do you read American Standard Serial Numbers?

Beginning in 1971, age is a number followed by a letter in the serial number. Example: 1C-xxxx = March 1971, etcâ€¦ (Beginning around 1987 the date of manufacturer is stamped on the ID plate most of the time.) Beginning in 2002 the first digit of the serial number is the year followed by the week.

### What do Trane model numbers mean?

Still, each letter and number means something. Trane T-Series air conditioners have model numbers that tell everything from the size of the unit to whether the system has had major upgrades. Decoding the model number takes patience, but if you focus on a few letters or numbers at a time, you’ll break the code quickly.

### How long do Trane furnaces last?

With furnaces in general that have been sized and installed corectly maybe 20 years on average. Generally though you could repair them indefinitely with the exception of the heat exchanger which could last 50 years or more if sized corectly.

### Where is the serial number on an AC unit?

The model and serial number can be found on the rating plate of your air conditioner or heat pump. This is generally found slightly above the refrigerant valves on the back side of the unit.

### How do you read a Lennox serial number?

Find the series of numbers and the letter that follow the word “Serial” on the identification plate. Write down the first five digits of the Serial Number. Use the serial number 5498L9988 for an example. “5498L” will give you the place, year and month of manufacture for the Lennox air conditioning unit.

### How old is my heat pump?

The first step is to go to the outdoor cabinet of the heat pump. Look on the back side, the side facing toward the house, and you should find a nameplate. The nameplate lists the manufacturer’s specifications on it. At the top of the nameplate, you should see the manufacture’s date like a month and year.

### Where do I find the model number on my furnace?

You can find the model and serial numbers (M/N and S/N) for your furnace by removing the top-front service panel and looking to the left side of the interior cabinet or the top of the blower deck, depending on whether your system is an 80% or 90% AFUE unit.

### How do I decode a Trane model number?

Trane Model Number Location First letter: The model number starts with 4. Second letter. The third letter represents the product type. The fourth letter equals the product family. The fifth number is for unit’s Seasonal Energy Efficiency Ratio. The six letter. The seven and eight number indicate tonnage.

### How do I read my air conditioner model number?

Look at the model number (Located on the data plate stamped on the actual side of the compressor) on the compressor and there should be a number divisible by 12. It should start at 18 and not be more than 60 for residential AC units. 18 to equal 1.5 tons and 60 to equal 5 tons of cooling.

### How can you tell how old an appliance is?

You can determine the age of your appliance by looking at the serial number on the nameplate. The first number indicates the year of manufacture, and the second and third digits indicate the production week. For example, 13500016: week 35 in 2001. You will find this information on the manufacturer’s data plate:

### How do you tell what size your AC unit is?

Find the model number. Within this string of letters and numerals, you should find an even, two-digit number. The possibilities on residential units range from 18 to 60. Divide the number by 12 (which represents 12,000 Btu/hr, or one ton of cooling capacity) to get your AC unit’s tonnage.

### How do I tell what size my AC unit is?

In order to calculate how much air conditioning you will need, divide the square footage of your building by 500. Then, multiply this number by 12,000 BTUs, and then add to that number the additional heat generated by windows, workers or areas such as kitchens.

### How old is my furnace by serial number?

Look at the first four digits of the serial number once you find it. The first two digits can be the week of the year that the unit was manufactured, with the third and fourth number indicating the year. A serial number starting with 0193, for example, may have been made the first week of 1993.