Gree GMV-VQ680WM/C-X Service Manual page 341

Gree
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 8: Remove the gas-liquid separator and oil separator
When the oil of system is contaminated, please check the components of the unit, including
the condition of gas-liquid separator and oil separator.
1）Remove the confirmed gas-liquid separator
（1）Remove the sound insulation cover side plate 1 and side plate 2 (applicable to model
GMV-VQ224/280/335/400/450WM/C-X).
①. Use cross screwdriver to remove screw 3.
②. Remove 1-side plate 1, 2-side plate 2.
（2）Remove temperature sensor and pipe fixing block, prevent burning when welding the pipe
nozzle (applicable to model GMV-VQ224/280/335WM/C-X).
1-side plate 1 2-side plate 2
GMV6 HR DC Inverter VRF Units Service Manual
3—screw
339