Refrigerant System Recovery

Refrigerant System Recovery

NOTE: Mazda Motor Company recommends use of an A/C service center to carry out recovery, evacuation and charging of the refrigerant system. If an A/C service center is not available, system recovery, evacuation, and charging may be accomplished using a separate vacuum pump, charging cylinder, and manifold gauge set.

1. Prior to recovering or charging the refrigerant system, you must verify the purity of the refrigerant.

NOTE: Some R-134a service centers require the use of an A/C manifold gauge set.

2. Connect R-134a A/C service center to the low and high pressure service gauge port valves.
3. Recover the refrigerant from the system following the manufacturer's instructions.
4. Once the service center has recovered the vehicle A/C system refrigerant, close the service center inlet valve (if equipped). Then switch off the power supply.
5. Allow the vehicle A/C system to remain closed for about two minutes. Observe the system vacuum level as shown on the gauge. If the pressure does not rise, disconnect the refrigerant center hose(s).
6. If the system vacuum does decrease, repeat steps 2 through 5 until the vacuum level remains stable for two minutes.
7. Carry out the required repairs, then evacuate and recharge the A/C system.