UncategorizedAugust 9, 2022by Alex

What is important to know about the labeling and specifications of air conditioning units

Manufacturers mark their air conditioners with numerical and alphabetic values that indicate the unit’s performance. Knowing the markings of air conditioning systems makes it easier for the buyer to make a choice.


In this article, we will review information about the marking of air conditioners and split systems, how to understand the alphanumeric designations and find out the model’s technical specifications.


What is an air-conditioner marking

Different coding systems are used to identify products. There is no single approach to the labeling of air conditioners. But there is a certain amount of information which manufacturers put in the marking of air conditioners.


What information is there in marking of split-systems:


  1. Appointment of the device: household, semi-industrial, industrial.
  2. Power parameter.
  3. Model of an air-conditioner.
  4. Type of compressor: normal, inverter.
  5. Type of Freon recommended charging the system.
  6. Type of power supply: 1, 3 phases.
  7. Year of model introduction on the market.


Contents of marking on an air conditioner

On the outside unit of split systems, the manufacturers fix an information board with the main technical characteristics of the device.


Contents of the labels on the nameplate of the air conditioner:


  1. manufacturer’s logo/brand name;
  2. unit model;
  3. serial number;
  4. unit issue;
  5. unit type;
  6. weight of the unit;
  7. energy consumption;
  8. refrigerant brand;
  9. maximum refrigerant pressure value;
  10. additional information on the operation of the appliance.


How to decipher the marking of the air conditioner

On the front panel of the indoor unit, the model name and marking with a set of numbers and letters are also shown. Let’s consider how these values are deciphered.


Deciphering of marking on air-conditioners:


  1. GWH or SRK – domestic air-conditioning unit, GU or SRR – the semi-industrial type of equipment.
  2. The next two digits – 07, 09, 12, 13, 14, 18, 24, 27 or 30 – are split-system capacity, measured in Btu/hr. “07” is 2.1 watts, “09” is 2.6 watts, “12” is 3.5 watts, “18” is 5.2 watts, etc.
  3. This is followed by a list of letter and number values identifying the series and model of the appliance.
  4. The last set of digits – 1/4 3/8, 1/4 1/2 or ¼, 5/8 – determine the diameter of the copper pipe indicated in inches.

In addition to the numerical and alphabetic values, there may be additional stickers and flyers on the body of the air conditioner showing a list of optional features of the appliance.


SDAC Heating & Air Conditioning is always happy to help with the installation of your air conditioning unit


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