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21-11 System Description EVAPORATOR RECEIVER/DRYER A/C COMPRESSOR A/C CONDENSER A/C PRESSURE SWITCH BLOWER FAN EVAPORATOR A/C COMPRESSOR RELIEF VALVE HIGH PRESSURE VAPOR HIGH PRESSURE LIQUID LOW PRESSURE LIQUID LOW PRESSURE VAPOR EVAPORATOR TEMPERATURE THERMAL PROTECTOR The air conditioning system removes heat from the passenger compartment by circulating refrigerant through the This vehicle uses HFC-134a (R-134a) refrigerant which does not contain chlorofluorocarbons. Pay attention to the • Do not mix refrigerants CFC-12 (R-12) and HFC-134a (R-134a). They are not compatible. compressor. Intermixing the recommended (PAG) refrigerant oil with any other refrigerant oil will result in A/C • All A/C system parts (A/C compressor, discharge line, suction line, evaporator, A/C condenser, receiver/dryer, expansion valve, O-rings for joints) are designed for refrigerant R-134a. Do not exchange with R-12 parts. • Use a halogen gas leak detector designed for refrigerant R-134a. station that is U.L.-listed and is certified to meet the requirements of SAE J2210 to service the R-134a air • Always recover the refrigerant R-134a with an approved recovery/recycling/charging station before disconnecting any A/C fitting. (cont’d) (Meters the required (Traps debris, and (Suction and compression) (Radiation of heat) When the refrigerant is below (Absorption of heat) (Relieves pressure at the A/C compressor (Opens the A/C compressor clutch circuit 2 2 05/06/27 18:02:40 61S6M040_210_0012 |