Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 1995-1999 Approved Subaru Legacy 1997 1997 Service Manual MECHANICAL COMPONENTS SECTION AIR CONDITIONING SYSTEM MSA5TCD97L3748

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4-7                    SERVICE PROCEDURE
10. Performance Test


                           10. Performance Test
                           1. VEHICLE SET UP
                           In order to obtain meaningful test results, the vehicle must
                           be set up to meet the following conditions:
                           1) Vehicle in shade
                           2) No wind
                           3) All vehicle doors closed
                           4) Front windows opened
                           5) Hood opened
                           6) Engine speed set at 1,500 rpm.
                           7) A/C ON
                           8) Temperature control lever -- Maximum cold
                           9) Air source -- Recirculation
                           10) Blower speed -- 4th position (High)
                           11) Operate A/C for 10 minutes (Minimum) before taking
                           measurement.

                           2. MEASUREMENTS
                           After 10 minutes (Minimum) of A/C operation and using
                           accurate test equipment, take the following measurements
                           (in order):
                           1) Evaporator intake air temperature at recirculation door.
                           2) Evaporator discharge air temperature at center grill.
                           3) Condenser (Ambient) intake air temperature measured
                           0.9 m (3 ft) in front and in line with the center of the con-
                           denser.
                           4) Suction (Low) side pressure
                           5) Discharge (High) side pressure
                           NOTE:
                           If only one thermometer is available; 1) take the ambient
                           measurement first; then 2) the intake air; and 3) dis-
                           charge air temperature.




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SERVICE PROCEDURE                                        4-7
                                          10. Performance Test


    3. MEASUREMENT STANDARD BY VERSES
    Compare temperature and pressure measurements with
    the established standards shown in the following charts.




                                                     B4M0371A




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