Charging

System Charging

NOTE: Refer to that Refrigerant Recovery and Recycling Unit Instruction Manual for operation of the unit.

CAUTION: 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.

Use only service equipment that is U.L.-listed and is certified to meet the requirements of SAE J2210 to remove HFC-134a (R-134a) from the air conditioning system.

If accidental system discharge occurs, ventilate work area before resuming service.

Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.


1. Connect a R-134a refrigerant recovery/recycling/charging station to the high-pressure service port and the low-pressure service port, following the equipment manufacturer's instructions.
2. Evacuate the system.
3. Add the same amount of new refrigerant oil to the system that was removed during recovery.
4. Charge the system with the specified amount of R-134a refrigerant. Do not overcharge the system; the compressor will be damaged.

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

5. Check for refrigerant leaks.
6. Check for system performance.