A/C System Charging
Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat.
Be careful when connecting service equipment.
Do not breathe refrigerant or vapor.

NOTE:
If accidental system discharge occurs, ventilate the work area before resuming service.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.

1. R-134a Refrigerant Recovery/Recycling/Charging Station - Connect
Connect an R-134a refrigerant recovery/recycling/charging station (A) to the high-pressure service port (B) and the low-pressure service port (C), as shown, following the equipment manufacturer's instructions.


2. A/C Refrigerant - Recover
1.
Recover the refrigerant from the A/C system.
2.
Measure the amount of refrigerant oil removed from the A/C system after the recovery process is completed. Be sure to put the same amount of new refrigerant oil back into the A/C system before charging.

3. A/C System - Evacuate

Evacuate the system. If the system cannot reach a vacuum of ?93.3 kPa (?700 mmHg, ?27.55 inHg) in 15 minutes, or cannot hold a vacuum for at least 15 minutes, there is probably a large leak.

4. A/C Refrigerant - Leak Check

Do the refrigerant leak check, and repair any leaks before charging the system.

5. A/C Refrigerant - Charge

Charge the system with the specified amount of R-134a refrigerant. Do not overcharge the system; the A/C compressor will be damaged.

Select the appropriate units of measure for your refrigerant charging station.

Refrigerant Capacity:
425 to 475 g
15.0 to 16.8 oz
0.425 to 0.475 kg
0.937 to 1.047 lbs

6. A/C Refrigerant - Leak Check

Check for refrigerant leaks.

7. A/C System - Test

Check the system performance.