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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Refrigerant System >> Refrigerant Charging >> Charging Preparation

Charging Preparation

  1. Close all the valves of the manifold gauge.
    Fig 1: Closing Valves Of Manifold Gauge
    G10948295Courtesy of MAZDA MOTORS CORP.
  2. Close the refrigerant tank valve.
  3. Install the manifold gauge set. (Refer to MANIFOLD GAUGE SET CONNECTION .)
  4. Connect the vacuum pump hose to the manifold gauge.
  5. Connect the tap pin side of the charging hose to the air purge valve of the manifold gauge.
  6. Connect the charging hose to the refrigerant tank (no-tap pin side).
  7. Place the refrigerant tank on the scale.

    Refrigerant type 

    • HFC-134a (R-134a)

      Regular amount of refrigerant (approx. quantity) 

    • 725-775 g {25.6-27.3 oz}
  8. Connect the vacuum pump hose to the vacuum pump.
  9. Perform a evacuation. (Refer to EVACUATION .)
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