Common Refrigerants
As the world becomes more environmentally conscious, the use of chemicals in air conditioning and refrigeration systems is becoming a topic of growing concern. One of the main issues is the use of refrigerants, specifically those containing hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs), which have harmful effects on the environment and contribute to the depletion of the ozone layer.
R22
R22 is the most commonly used refrigerant in air conditioning systems, but it is being phased out because of its damaging effects on the environment.
R410A
R410A is a commonly used alternative that has a higher coefficient of performance and better energy efficiency than R22. It is also non-toxic and non-flammable, making it a safer choice.
R32
R32 is a newer refrigerant that is gaining popularity because of its low global warming potential (GWP) and high energy efficiency. It is also non-toxic and non-flammable, making it a safer choice than some other refrigerants.
R290
R290, also known as propane, is a natural refrigerant that has low GWP and is non-toxic. It is being used more frequently in small refrigeration systems because of its high energy efficiency and low impact on the environment.
R600A
R600A, also known as isobutane, is another natural refrigerant that has low GWP and is non-toxic. It is commonly used in household refrigerators and freezers because of its high energy efficiency and low impact on the environment.
R717
R717, also known as ammonia, is another natural refrigerant that has been used for over a century. It has low GWP, high energy efficiency, and is non-toxic. However, it requires special handling because of its corrosive nature.