Nissens Receiver Drier

Some air Conditioning systems differ, in an expansion valve system the drier is known as a receiver, in an Orifice tube system it's known as an accumulator.

The receiver drier contains a desiccate, much like the small bags of "Silica Gel" crystals found in boxed goods, much like the Silica gel crystals, the job of the receiver drier is to absorb moisture and impurities from the system it also ensures that only liquid refrigerant continues onto the expansion valve, an accumulator prevents liquid refrigerant from entering the compressor.

All Euro Car Parts Receiver driers are supplied "sealed" to prevent the desiccate from absorbing moisture from the atmosphere, shortening the life of the drier.

A receiver drier should be regarded as a service item; it should be replaced every 2 years to help prevent moisture from entering the compressor which can lead to very expensive repair bills.