Collect all refrigerant into a cond

Collect all refrigerant into a condenser before this work. 2. Turn off the switch, DSW3 of the PCB plate in the electrical box in order not to operate the compressor except for this cycle. 3. Circulate the chilled water sufficiently through the water cooler, and operate the water chiller for 10 minutes, and check to ensure that the oil level is maintained at a stable condition. 4. Stop the water chiller and completely close the liquid stop valve. 5. Operate the water chiller after the circulating water through the water cooler. 6. Stop the water chiller when the low pressure reaches at an approximately 0.05Mpa. Do not operate at the pressure lower than 0.05MPa.If operated, it will cause damage to the compressor. 7. Wait for several minutes. If the low pressure increases up to 0.15 to 0.20MPa, repeat the above procedures 5 and 6 four or five times. 8. Turn off the power supply to the unit. 9. Remove the bolts on the discharge and suction flanges of the compressor. (Note: in order to avoid refrigerant jetting, remove the bolts a little slowly to discharge remained refrigerant.) 10. Remove all the wiring of the compressor. 11. Remove the bolts fixing the compressor and the flanges of the discharge and suction side. 12. Remove compressor. 1 to 12 points shown above instruct that remove the compressor during normal maintenance procedures (Example: replacement of compressor bearings). If compressor removal is due to compressor fault (Can not work), please perform maintenance according to 8 to 12 procedure.
MAINTENANCE
CAUTION