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.

Air conditioner & heat pump data tag de-coding FAQs

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.

How old is my heat pump - no data tag serial number?

My. Serial number is gone on my heat pump so now how do I no how old it is? On 2019-07-17 by Erika

Tips by (mod) - When the data tag is lost, damaged, not readable

Erika

Great question.

When the data tag is lost and we want to know the age on a heat pump we have a few options:

1. how old is the building - that sets a limit on the heat pump age

2. are there any service records for the unit? If there are just one or two service or installing companies where you live you can also give them a call to see if they installed the unit

3. is there an installation manual left with the unit - often there's an installation date written there

4. did anyone pen an install date inside the cover

5. Identify the brand, take photos, ask the manufacturer for a clue - e.g. there may be a serial number on the compressor motor or other major parts

Age of my A/C unit: serial number but no brand

Age of unit? Model can 36-1 serial 28707197040..Addison..thank you

Wondering she of my unit ? Model qch 36-1 serial 28707197040..thank you On 2019-05-31 by Sheila

by (mod) - If you can find the brand of your equipment on the data tag

If you can find the brand of your equipment on the data tag that combined with the serial number that you already have will allow you to look up the age decoder in this article series

On 2016-07-16 by John Kay

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

On 2016-07-16 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 http://www.electroluxappliances.com/

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.

 

How do I find the age of an air conditioner?

where can I find age, life expectancy, etc if I want to put in the model and serial number of hvac systems On 2016-06-20 by jim

by (mod)

Jim

You'll see examples in the article AGE of AIR CONDITIONERS & HEAT PUMPS : 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

 

Decode a York packaged heat pump data tag

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

only numbers showing on the faded tag model number is 026p06082bb trying to find the correct model and serial number On 2016-05-25 by glenn

by (mod) York A/C unit model numbers are in this format:

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

XXX 12 C-3

XXX 12 C-3A

XXXX Y123ZZ

where the first two numeric digits are Mbtuh

or A1BC2345678

where
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 at AGE of AIR CONDITIONERS & HEAT PUMPS gives exact details for all of the encoding characters, but this will show you the usual model number formats

 

On 2016-02-03 by coldairresource

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

How to find the refrigerant charge for my Goodman AC Unit?

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 2015-08-06 by Anonymous

by (mod) Goodman Air Conditioning contact information

If you don't have the manual and don't have a data tag that gives the refrigerant type and charge volume then 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

Question: how do I get Carson Dunlop's Technical Guide to HVAC systems?

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, (Jan 24, 2014) Jill Holstein

I am interested in knowing if the Carson Dunlop Technical Reference Guide covers Commercial Carrier AHU's RTU's and FCU's.

Also does it include refrigerant type and capacities for each unit. If not is there a site that does have the information. I am working for a college and am in need of this type of information if available. I am also interested in report writing. On 2012-09-18 by Rocky Germani

Reply:

Jill contact information for Carson Dunlop Associates data tag decoding book is given in the article AGE of AIR CONDITIONERS & HEAT PUMPS 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.

Get the size of a Magic Chef AC Unit

trying to find out size of AC from lable off coil Magic Chef MODEL YA583T-2 COIL NUMBER AT582-2 SERIAL NUMBER A 07212KCC On 2012-07-19 by KeviP

Reply by (mod) -

KeviP

Normally we'd look up the Magic Chef model number decode for your unit in our copy of Carson Dunlop's Technical Reference Guide (listed in the references section at the end of this article) but I'm working on assignment out of office for a time. You can

- contact Magic Chef and ask them directly
- pick up a copy of Carson Dunlop's Technical Reference Guide (recommended)
- pick up a copy of Preston's HVAC decoding guide (absurdly expensive, more details)

Typically on older Magic Chef AC equipment the year and place of manufacture are in the end of the serial number; the BTUH capacity is in the model number but may be encoded.

Determine if the compressor is a 1-stage or 2-stage unit from the data tag?

Hi Dan. Great Info. Do you know if there is way to determine whether the compressor is a 2 stage or 1 stage unit based on looking at the data plate? Thanks a lot, Andy - Carson Dunlop. On 2012-05-08 by Andy Tran

Reply by (mod) -

Andy, the compressor type may be coded in the model number for some manufacturers. If you pass on that data to me, better yet, with a sharp focus photo of the data tag(s) I'll see what I can find.

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Continue reading at DATA TAGS on AIR CONDITIONERS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see these

Recommended Articles

• SEER RATINGS & OTHER DEFINITIONS
• AGE of HEATERS, BOILERS, FURNACES
• LIFE EXPECTANCY of AIR CONDITIONER or HEAT PUMP
• LIFE EXPECTANCY of FAN / WALL CONVECTOR

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