Refrigerant Circuit, Evacuating With A/C Service Station: Notes

• The work procedure is always to be performed as described in the operating instructions for the A/C service station.
• The quantity of refrigerant oil in the refrigerant circuit is checked and if necessary corrected. Refer to REFRIGERANT R134A CAPACITIES, REFRIGERANT OIL AND APPROVED REFRIGERANT OILS .
• The quantity of refrigerant in the A/C service station is checked.

The refrigerant circuit must be evacuated before it is filled with refrigerant (vacuum). Moisture is also extracted from the circuit.

Leaks may be found when evacuating the refrigerant circuit.