It's a Lubricant. It lubricates parts.
To prevent wear on the compressor.
to lubricate the compressor
mineral oil
The compressor oil
Oil in a AC compressor is there so that the mechanical parts don't over heat from friction
freon and oil
Ice
freon and oil
ACID
Hydroscopic refrigerant oil is a type of lubricant used in refrigeration and air conditioning systems that has the ability to absorb moisture from the environment. This property helps prevent the formation of ice and corrosion within the system, which can lead to inefficiencies and damage. However, excessive moisture absorption can also degrade the oil's performance and compromise the system's operation. Maintaining the right balance of moisture levels is crucial for optimal performance and longevity of the refrigeration system.
Floc in refrigeration oil is wax that has separated out from oil containing parathene.
Sludge in a refrigeration system can lead to reduced system efficiency, decreased cooling capacity, and potential damage to components such as the compressor. It can also cause blockages in the system, leading to uneven cooling or system breakdown. Regular maintenance and proper filtration can help prevent the formation of sludge in a refrigeration system.