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Home >> Mazda >> 2002 >> 626 ES, Automatic >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System >> Refrigerant System >> Refrigerant System Performance Test

Refrigerant System Performance Test

  1. Warm up the engine and run it at a constant 1,500 rpm. 
  2. Set the fan switch at 4th position.
  3. Turn the A/C switch on.
  4. Set the RECIRCULATE mode.
  5. Set the temperature control to MAX COLD.
  6. Set the VENT mode.
  7. Close all the doors and windows.
  8. Wait until the center ventilator temperature stabilizes.
  9. Measure the center ventilator temperature.
  10. Measure the ambient temperature.
  11. Verify that the intersection of the center ventilator temperature and the ambient temperature is in the shaded zone.
    Fig 1: Center Ventilator Temperature Specifications
    G01136355Courtesy of MAZDA MOTORS CORP.
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