The sealed A/C accumulator assembly is connected to the A/C evaporator outlet pipe. The A/C accumulator assembly functions as a liquid/vapor separator.

The A/C accumulator assembly receives the following items from the A/C evaporator:

It only allows refrigerant vapor and oil to continue on to the A/C compressor.

A desiccant may be present at the bottom of the A/C accumulator. The desiccant acts as a drying agent. An oil bleed hole is also located near the bottom of the A/C accumulator outlet pipe. The oil bleed hole provides an oil return path to the A/C compressor.