Gree GMV-VQ680WM/C-X Service Manual page 345

Gree
amount of oil that is poured out of the system needs to be supplemented with additional oil after
repair.
Step 9: Removing pipeline system
After checking the parts that need to be replaced, check whether there is any abnormality in
the system pipeline. Use nitrogen to blow the main pipeline and focus on detecting and removing
the oil passages.
①
Removing the oil return pipeline.
②
Checking the liquid pipe filter. (The liquid pipe filter is in the plate heat exchanger
assembly, see 5.1.11 for the specific disassembly method)
Remove the other piping components according to the actual conditions. If the components
are not replaced immediately after removing the pipeline, use tape to seal the pipeline to prevent
moisture and impurities from contaminating the system.
GMV6 HR DC Inverter VRF Units Service Manual
343