Recovery of Refrigerant

RECOVERY OF REFRIGERANT
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.

1. Connect a R-134a refrigerant Recovery/Recycling/Charging System to the vehicle, following the equipment manufacturer's instructions.

2. Measure the amount of refrigerant oil removed from the A/C system after the recovery process is completed.

NOTE: Be sure to install the same amount of new refrigerant oil back into the A/C system before charging.

EVACUATING REFRIGERANT SYSTEM




1. When an A/C System has been opened to the atmosphere, such as during installation or repair, it must be evacuated using a vacuum pump.. (If the system has been open for several days, the receiver/drier should be replaced).
2. Stan the pump, then open both gauge valves. Turn the pump for about 15 minutes. Close the valves and stop the pump. The low gauge should indicate above 700 mm Hg (27 in-Hg) and remain steady with the valves closed.

NOTE: If low pressure does not reach more than 700 mm Hg (27 in-Hg) in 15 minutes, there is probably a leak in the system. Check for leaks, and repair (see Leak Test).

3. If there are no leaks open the valves and continue pumping for at least another 15 minutes, then close both valves and stop the pump.