Water will not turn into vapor when it absorbed the heat from a room because of its high boiling point (relatively high when compared to R410A). To explain why a specific refrigerant must be used, let’s assume if water is used as the refrigerant in an air conditioner.

Below are some of the desirable characteristic of a refrigerant: R22, R410A, and R32 are the common refrigerant used in residential air conditioners because of their unique chemical properties. A refrigerant absorbs heat from a room and rejects it outside the house. Refrigerant is used in an air conditioning system to transfer heat energy. Why Refrigerant is Used in Air Conditioning Systems? Most CFCs, including R22, are getting banned in most countries due to their ozone-depleting capability that contributes to global warming.Įventually, R22 and other CFCs will be phased out and newer, more environmental-friendly refrigerants will be replacing them. R22 falls under the family name called chlorofluorocarbon or CFC.

Older air conditioners mostly used R22 refrigerants. Check out my post on why R32 is the best refrigerant for air conditioners.

HFC is the most common type of refrigerant used in residential air conditioners, particularly R410A and the newer one, R32. Some of the HFC members are familiar names such as R132a, R410A, and R32. A refrigerant doesn’t necessarily have to be a chemical that we rarely heard, even air and water can be called a refrigerant as long as they are the working fluid in the refrigeration cycle.Ī picture of R32 or HFC-32 refrigerant contained in a tank.Īmong the refrigerants, hydrofluorocarbon or HFC is best suited for air conditioners.

The fluid used in the refrigeration cycle is called a refrigerant, makes sense. Refrigerant is a general name given to a group of chemicals such as hydrofluorocarbons (HFCs), ammonia, propane, and carbon dioxide. Refrigerant is the working fluid in an air conditioning system. Insulation is always required in an air conditioning system to prevent energy loss.Īn air conditioner not just cools or reduces the temperature of the air, it also dehumidifies the air to a level that is comfortable to humans.Īn air conditioner also provides a certain degree of air filtration during the cooling process. In an air conditioning system, pipes are needed to transfer heat energy from indoor to outdoor. Besides, air conditioners have other components such as filter drier and printed circuit board, these components will be covered later in this article.

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