Liquid Receiver is located, after the condenser and before the evaporator, on the high pressure line. The function of the liquid receiver is to send the refrigerant fluid in 100% liquid state to the expansion valve for the best cooling effect.

In case of any refrigerant flow fluctuations, the Liquid Receiver will held the responsibility to keep highest refrigeration efficiency.
During the system maintenance, the Liquid Receiver is used as a reservoir for the refrigerant.