To ensure an A/C system cools air efficiently, the right amount of refrigerant needs to be put under the right conditions, before it is delivered to the evaporator. The receiver drier plays a key part in this by storing the liquid refrigerant safely until the evaporator needs it. It does this by separating the liquid and gaseous refrigerant to make sure only liquid enters the evaporator, to guarantee maximum cooling performance.
To ensure optimal efficiency, DENSO receiver driers also filter and dry the refrigerant to make sure it is in the ideal condition.