Photograph of an air conditioning system data tag or sticker showing the manufacturer's specifications Air Conditioning & Heat Pump Data Tag FAQs
Questions & answers on de-coding HVAC data tags

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HVAC data tag decoding questions & answers:

Frequently asked questions and answers on how to decode the information on air conditioner or heat pump data tags to read BTUS, cooling capacity, wiring and fusing requirements, refrigerant requirements and more.

This article series explains and translates all of the data found on information tags and stickers used on air conditioning and heat pump equipment. This article series answers most questions about air conditioning systems.

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Air conditioner & heat pump data tag de-coding FAQs

Photograph of the information sticker from a residential air conditioning compressor unit

Recently posted questions & answers about decoding air conditioner & heat pump data tags. These questions and replies were posted originally at DATA TAGS on AIR CONDITIONERS - how to decode data tag information.

On 2016-07-16 22:50:58.490617 by (mod) - Electrolux decodign information?

I can see why you're asking: going to a U.S. or Indian Electrolux website and looking at their "CONTACT ELECTROLUX" information leaves you with all of the contact details I show between the two dashed lines below:


That's right, Nothing. You might dig deeper and find a U.S. telephone number or you can fill in a question form at

The manufacture date is typcially coded into the serial number. I see that "97" at the end of the S/N that might be a year-clue.

As manufacturers do not enjoy following an industry-wide age encoding standard, each company may use different encoding in the serial number - we give some sources of decoder guides in the article above.

As I'm traveling and don't have my Carson Dunlop data tag decoder book in my backpack, I'm left having to guess.

More speculatively for Electrolux you could guess and decide if the guess is reasonable week 16 of 1997, and week 24 of 2007.

On 2016-07-16 08:01:01.280997 by John Kay

I am tring to date my AC
Electrolux Indoor ESD24HRA S/N 64051697
Outdoor ESD24HRA S/N 64002407

On 2016-06-20 19:12:54.563551 by (mod)


You'll see examples in the article above: the age is usually encoded or sometimes even given clearly in the serial number of the HVAC component. Check the data tag. You'll see that different manufacturers use differing systems such as

straightforward encoding: 1995010312345 1995 May 03 12345

encoding by serial day of the year such as YYYYnnn or just YYnnn

encoding by letter codes such as A=1995

On 2016-06-20 18:16:01.088141 by jim

where can I find age, life expectancy, etc if I want to put in the model and serial number of hvac systems

On 2016-05-25 20:49:49.925043 by (mod)

York A/C unit model numbers are in this format:

XXX 12 C-3

XXX 12 C-3A


where the first two numeric digits are Mbtuh

or A1BC2345678

A = product type, e.g. E = heat pump outdoor unit

1 = generation number

BC = product identifier, e.g. UF = upflow flattop

234 = cooling capacity in BTUH or CFM, e.g. 012 = 12,000 BTUH, or D06 = 600 CFM direct drive

5 = refrigerant connection type, e.g. A = quick connect

67 = voltage if present, e.g. 06 = 208/230-1-60

The Carson Dunlop Technical Reference Guide we cite above gives exact details for all of the encoding characters, but this will show you the usual model number formats

On 2016-05-25 14:55:30.783780 by glenn

this is a York package heat pump with faded tag model number that can be seen is 026p06082bb.what is the correct model and serial number

On 2016-05-25 14:42:02.897418 by glenn

only numbers showing on the faded tag model number is 026p06082bb trying to find the correct model and serial number

On 2016-02-03 18:28:50.493089 by coldairresource

Typhoon air conditioning division of HUPP CORPORATION
Model# 207 LSU
Serial# 8L-106743

On 2016-02-03 18:25:22.539675 by chad

Typhoon air conditioning division of HUPP CORPORATION
Model# 207 LSU
Serial# 8L-106743

On 2015-11-07 02:22:47.335371 by (mod)

I don't know the brand.

On 2015-11-05 00:56:26.043691 by Anonymous

Hello, could you please tell me how old my gas water heater is: MODEL # RP50-45FV ITEM # 910510408 SERIAL # 0106J14836. This was manufactured by Rheem Guardian System. Thank you.

On 2015-10-13 19:50:52.088680 by GARY

SERIAL NO. IS GBF080404426

On 2015-09-18 03:09:27.856184 by Brandi

I forgot to add my name below. Also, I believe the unit is a frigidaire, but not sure.

On 2015-09-18 03:08:05.190269 by Anonymous

I am trying to figure out how old this ac unit is: Model # CR22kFPFV230 Serial No. 00JM6718H and how much it is worth today if in fair condition.

On 2015-09-15 17:26:06.226703 by Julia Dodge

I'm trying to locate a model/serial number for a condenser coil in my outdoor condensing unit in my mobile home. Manufacture date of mobile home is 1/29/2002. By looking at compressor number a fried suggested condenser coil may have been made by Comfortmaker. But not sure.

Have the compressor model/serial numbers by Copeland: Model: CR38K6-PFV-130; Serial: 02J03603H. The Fan model is by Emerson: K48HXFCM-3726. Also have a torn label for outdoor ambient temperature reading with a style number: NAC042.

The other label deals with electrical connection and is partially hidden and cannot see. I would appreciate the help if you can find out. thank you.

On 2015-08-06 20:40:29.708585 by (mod)

Sure, Anon, your best bet to get exactly the correct data is to give Goodman Air Conditioning a call directly.
From within the United States and Canada, you can contact Goodman at 1-877-254-4729
By Mail to
Goodman Air Conditioning and Heating
7401 Security Way Houston, TX 77040

On 2015-08-06 16:14:28.201459 by Anonymous

our office has a Goodman ARUF46016BA unit. I'm not at the location and need to know the factory charge capacity is so I can determine what the max pounds of R-22 is. Can anyone help me? Jill D.

On 2015-08-01 11:13:32.956461 by Edrees

we have air condition that both in indoor and outdoor unit its written the power is 1300W! what is the difference is the indoor unit also consume too big power ?

On 2015-06-25 13:30:03.204690 by Jean

I'm trying to determine the age of my a/c unit. The serial # is 1601F26891. Can you help with this/


(Jan 24, 2014) Jill Holstein said:
HOW CAN I GET ONE OF THESE ? Carson Dunlop provides a manual that decodes more of that data so that you can know the age of the compressor or air handler. That is, the date of its manufacture,


Jill contact information for Carson Dunlop Associates data tag decoding book is given in the article above as well as at the Citations at the end of this article.

Click the "Click to Show or Hide Citations and References" at the end of this article.

Scroll down to the second major bullet where we describe "Carson Dunlop Weldon & Associates' Technical Reference Guide to manufacturer's model and serial number information for heating and cooling equipment
" - the company's contact and sales information is there as a hyperlink, and they have generously provided a code (capital letters, bold face) that will get you a small discount on the price of that manual.

Question: various data tag decoding numbers that can be found in the references cited in the article above

(Aug 13, 2014) bill english said:
I am trying to determine the nominal capacity of an old Inter City air conditioner. The model number is CA5536UKC1.

(Sept 15, 2014) Kevin said:
Looking for the age of a Sanyo Model # CL2412 Serial # 0036604 ?

(Oct 12, 2014) Carol said:
Looking for size of singer AC model ACR50029

(Nov 25, 2014) David said:
Looking for the age of a Versatec Heat Pump model# 036A100NMT1SSA - serial # UH2316 and VXV030A100NMT1SSA -serial #UF1199. Any help would be much appreciated!

(Apr 2, 2015) Anonymous said:
Looking for ton size of Trane XE 1100 Model TTN036C100B3


Sorry but we can't answer all data tag look-up requests. Please try the web articles and references listed above.


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