The accumulator is a component on the low pressure (vacuum) side of an air conditioning system which uses a fixed orifice tube - they won't be found on a Thermal Expansion Valve system.
System does not contain Freon. R134a refrigerant is added through the low side service port on the accumulator.
In an air conditioning system which uses a Fixed Orifice Tube, the accumulator is located on the low pressure (vacuum) side, between the evaporator outlet and the compressor inlet. The accumulator ensures that all the refrigerant which goes into the compressor inlet is in a vapor state, and prevents any refrigerant which is still in a liquid state from getting through.
You did not give the year so I will assume a newer one. The low side fitting is normally on the accumulator. If your system has R134A refrigerant do not use any that has stop leak in it. That will ruin a shops equipment.
The AC orifice on a 1992 Oldsmobile 98 is located in the refrigerant line that runs between the evaporator and the accumulator. It is typically found near the accumulator, which is mounted on the passenger side of the engine compartment. The orifice tube is a small, cylindrical component that controls the flow of refrigerant into the evaporator. Make sure to handle it carefully when servicing the AC system.
Add refrigerant vapor on the low side of the system ,the compressor raises the pressure of the refrigerant on the high side of the system and lowers the pressure on the low side
Add refrigerant vapor on the low side of the system ,the compressor raises the pressure of the refrigerant on the high side of the system and lowers the pressure on the low side
Commonly referred to as the heart of the system, the compressor is a belt driven pump that is fastened to the engine. It is responsible for compressing and transferring refrigerant gas. The a/c system is split into two sides, a high pressure side and a low pressure side; defined as discharge and suction. Since the compressor is basically a pump, it must have a intake side and a discharge side. The intake, or suction side, draws in refrigerant gas from the outlet of the evaporator. In some cases it does this via the accumulator.
The Low side port is located on the accumulator, there is a plastic cap on it. The accumulator is the metal "can" near the firewall on the passenger side.
The pressure on the low pressure side of a refrigeration system is determined by the refrigerant's temperature and the system's design. As the refrigerant absorbs heat in the evaporator, it vaporizes and its pressure decreases. The size of the evaporator, the amount of refrigerant flowing through it, and the efficiency of the system also affect the pressure on the low side.
On a 2001 Saturn L-Series, the accumulator drier is located near the front of the vehicle, typically mounted on the passenger side, close to the firewall. It is part of the air conditioning system, positioned along the refrigerant line that leads to the evaporator. To access it, you may need to remove some components or covers in the engine compartment. Always refer to a service manual for specific instructions and safety precautions.
On a 2003 BMW X5, the port to add freon (refrigerant) is located on the low-pressure side of the air conditioning system. You can typically find it near the accumulator or receiver-dryer, which is on the driver's side of the engine bay. The port is usually a smaller fitting compared to the high-pressure side port, which is larger and typically located near the compressor. Always ensure the system is off and follow proper procedures when handling refrigerant.
Refrigerant should be added through the low side of the system. This is typically done while the system is running, as adding refrigerant through the high side can be dangerous due to high pressures. It is important to follow manufacturer guidelines and use proper equipment when charging a refrigeration system.