Receiver-Drier

toc The **Receiver/Drier** is a device that dries refrigerant and acts as a storage reservoir for refrigerant.



=Function= The receiver/drier removes moisture from refrigerant as well as filtering any contaminants or particulates from it. It also acts as an accumulator or reservoir to store excess coolant. The Z32 receiver/drier also houses a pressure switch.

=Versions= There are two versions of the receiver/drier which are virtually identical. They are interchangeable (aside from the fact that you should never install a used one), and the R134A version can be considered an upgrade for R12 systems as its pressure switch is two-way. That is, the R12 receiver/drier's pressure switch disables the compressor if the refrigerant level is too low. The R134A receiver/drier's pressure switch disables the compressor if the refrigerant level is too low //or// too high.
 * 1990-1993 (R12 systems)
 * 1994+ (R134A) systems

=Replacement= Replacement is quite simple and should be done any time the system is exposed to the elements.

Tools Needed

 * 10mm socket & ratchet.
 * Medium-sized adjustable wrench.

Parts Needed

 * New receiver/drier (duh).
 * Don't remove the protective caps until you're ready to install it.
 * New O-rings for the receiver/drier line fittings.

Procedure

 * 1) Discharge the A/C system if it hasn't been already. Be sure to properly evacuate the system and don't just vent it to the atmosphere.
 * 2) Remove the nose panel (2x 10mm bolts, 4x 10mm bolts on airbag-equipped cars).
 * 3) Loosen the union fittings on the receiver/drier A/C tubes.
 * 4) Disconnect the electrical harness to the receiver/drier pressure switch and ambient temp sensor (if applicable). Remove the harness clips from the receiver/drier bracket.
 * 5) Remove the 2x 10mm bolts securing the receiver/drier to the car.
 * 6) Remove the receiver/drier.

Installation of the new unit is the reverse of the removal. Be sure to follow the guidelines for connecting the union fittings in the A/C Recharge article, and remember to replace the o-rings with new parts.

=Related Articles= Air Conditioning System (Category) How-To Guides (Category) Parts (Category)