Ductless Air Conditioning Installation in Pittsburgh – Refrigerant.

Refrigeration is the cooling of a substance below the ambient temperature, which removes the heat of the substance. The heat-removing material is called refrigerant. There are two main groups of refrigerants, a heat absorbing changing state (for example from liquid to vapor), and one which absorbs, but remaining in the same state (for example, a liquid which is liquid).

The most common type of refrigerant used in homes and industry absorbs heat by changing from liquid to vapor. Because the physics involved in this process is beyond the scope of research for this article, suffice it to say that through the process of evaporation, the refrigerant removes heat from the air and transfers it elsewhere. That's why you feel the hot air out of the back of your refrigerator or air conditioner is the heat that has been removed from the air you are trying to cool.

Tetrafluoroethane, also known as R134a, is similar to R-12, but has no harmful effects on the ozone layer. For this reason, it is often used as a substitute for R-12, and is generally used in automotive air conditioners. Tetrafluoroethane is non-corrosive, non-flammable and non-toxic.