Gree GMV6 DC Inverter VRF Units Service Manual
253
②
Place the compressor at a position above the level of the ground, pour oil from the
compressor exhaust port, and use a beverage bottle or other transparent container (with a volume of
over 150 ml) to store oil.
Note that the angle between the axial position of the compressor and the horizontal plane should not
exceed 20 degrees to prevent the compressor from falling and injuring people.
No more than 20°
between the
compressor and
ground
Place a transparent container with
a capacity of above 150ml beneath
the discharge pipe when draining
the lubricant of the compressor to
check the oil quality
③
Place the collected compressor oil in a bright place to check if it contains impurities and
discolors, and smell the compressor oil. Normal lubricant has no obvious pungent odor.
After removing the compressor and oil, check the oil quality separately. If it is contaminated, replace
the compressor, oil separator and gas-liquid separator. If the color of the oil turns black, check the other
modules in the system using the same method.
Note:
Check the compressor that needs to be replaced, and ensure that pipe openings of the damaged
compressor are sealed with tape or the like in time to ensure that the compressor is in good condition for
further analysis.
Step 7: Checking system parts
When the system oil is polluted, it is necessary to confirm the parts of the unit, including the oil
separator, gas-liquid separator and storage tank.
1) Checking oil separator
Remove the oil separator according to the procedure of step 4, discharge oil from the oil separator,
use the container to hold the oil, and seal the container for return to the factory for inspection.
