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PERFORMANCE CHART NCHA0031 Test Condition NCHA0031S01 Testing must be performed as follows: Vehicle location Indoors or in the shade (in a well-ventilated place) Doors Closed Door window Open Hood Open TEMP. Max. COLD Mode switch (Ventilation) set REC switch (Recirculation) set (blower) speed Max. speed set Engine speed Idle speed Operate the air conditioning system for 10 minutes before taking measurements. Test Reading NCHA0031S02 Recirculating-to-discharge Air Temperature Table NCHA0031S0201 Inside air (Recirculating air) at blower assembly inlet Discharge air temperature at center ventilator °C (°F) Relative humidity % Air temperature °C (°F) 50 - 60 25 (77) 10.9 - 12.9 (52 - 55) 30 (86) 15.2 - 17.7 (59 - 64) 35 (95) 19.4 - 22.5 (67 - 73) 60 - 70 25 (77) 12.9 - 15.0 (55 - 59) 30 (86) 17.7 - 20.5 (64 - 69) 35 (95) 22.5 - 25.2 (73 - 77) Ambient Air Temperature-to-operating Pressure Table NCHA0031S0202 Ambient air High-pressure (Discharge side) kPa (kg/cm 2 , psi) Low-pressure (Suction side) kPa (kg/cm 2 , psi) Relative humidity % Air temperature °C (°F) 50 - 70 30 (86) 1,177 - 1,422 (12.0 - 14.5, 171 - 206) 216 - 255 (2.2 - 2.6, 31 - 37) 35 (95) 1,344 - 1,648 (13.7 - 16.8, 195 - 239) 255 - 314 (2.6 - 3.2, 37 - 46) 40 (104) 1,471 - 1,785 (15.0 - 18.2, 213 - 259) 304 - 382 (3.1 - 3.9, 44 - 55) TROUBLE DIAGNOSES FOR ABNORMAL PRESSURE NCHA0032 Whenever system’s high and/or low side pressure is abnormal, GI MA EM LC EC FE CL MT AT AX SU BR ST RS BT SC EL IDX TROUBLE DIAGNOSES AUTO Insufficient Cooling (Cont’d) HA-83 |