The compressor.
The refrigerant
Refrigerant works by absorbing heat from inside the refrigerator or air conditioning system and carrying it outside. As the refrigerant evaporates, it cools the air inside the system. The refrigerant then condenses back into a liquid, releasing the heat outside, and the cycle repeats to keep the space cool.
Aside from circulating the refrigerant and PAG oil, it also changes the refrigerant from a low pressure vapor to a high pressure vapor, thus allowing the superheat to occur, and the heat exchange vital to the function of the AC system.
To add refrigerant to your air conditioning system, you will need to locate the service valves on the unit, connect a refrigerant charging hose, and slowly add the appropriate amount of refrigerant according to the manufacturer's specifications. It is important to follow safety guidelines and regulations when handling refrigerants.
For starters, you'll get insufficient cooling from your system. Refrigerant changes states from liquid to vapor and back again in order to achieve cooling, and the system pressure is balanced to facilitate this - excessive refrigerant makes it much more difficult to do this. Additionally, your system will generate excessively high pressure, which will ultimately damage or destroy system components.
System is low on refrigerant.
used as cooling and freezing agent
Freon, or refrigerant, in a residential central air conditioning system can last for many years, typically as long as the system is functioning properly and is not leaking. Under normal conditions, the refrigerant should not need to be replaced. However, if there is a leak or the system is not cooling effectively, it may require a recharge or replacement of the refrigerant. Regular maintenance can help ensure the longevity of the refrigerant and the overall efficiency of the system.
The compressor fan in an air conditioning system helps to cool down the refrigerant gas by compressing it, which increases its pressure and temperature. This allows the refrigerant to release heat outside the system, making the air inside the building cooler.
The 2001 Nissan Xterra uses R134a refrigerant for its air conditioning system. R134a is a hydrofluorocarbon (HFC) refrigerant that was commonly used in vehicles manufactured during that time period. It's important to ensure that any servicing of the air conditioning system uses the correct type of refrigerant to maintain efficiency and prevent damage.
R-134A
With a refrigerant recovery and recycling machine.