Gree GMV5E Series Service Manual page 268

GREE
⑥ After a required amount of lubricant is added, close the oil checking valve to ensure tightness.
Note: Lubricant is of great importance to the normal running of compressors. You should follow
Gree's requirement to add qualified lubricant of the specified trademark and ensure properness of fill
amount.
Step 14: Vacuum-pump.
After lubricant is added, keep on extracting air through a vacuum pump till the internal pressure
reaches the absolute pressure 0 kgf/cm
moistures inside the pipeline system are completely vaporized.
Vacuum pumps of the specifications below are recommended:
Type
Lubricant driven pump
Lubricant free pump
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
2
and the pressure gauge reads -1 kgf/cm
Max. Discharge Rate
100 L/min
50 L/min
264
Purpose
For air discharge For vacuum drying
Applicable
Applicable
2
. This is to ensure that
Applicable
Applicable