Compressor HVAC: Description and Operation

DESCRIPTION
The compressor used on this vehicle is a Nippondenso 10PA17 R-134a. This compressor uses an aluminum shwash plate, teflon coated pistons, and aluminum sleeved cylinder walls. One-way check valves are used to regulate refrigerant flow though the compressor.

CAUTION: A 10PA17 R-12 compressor looks identical to a 10PA17 R-134a compressor and will bolt up to this vehicle. It is extremely important that an R-134a compressor is identified prior to using compressor in question. Check the tag on the compressor for a model number.

OPERATION
The compressor compresses the low pressure refrigerant vapor from the evaporator into a high pressure, high temperature vapor. The system uses Polyalkylene glycol synthetic wax-free refrigerant oil SP-10 PAG.