Gree GMV-VQ680WM/C-X Service Manual page 347

Gree
installed at the same places of the respective old compressors and wired correctly. We
recommend you replace the compressors one by one.
CAUTION!
The compressors must be wired in accordance with the wiring at the factory. The control
varies by compressors. If the wiring is incorrect or the two compressors are reversed, the unit may
be damaged.
Step 11: Checking/replacing gas-liquid separator
※ Note: If a damaged compressor in the system needs to be replaced, the gas-liquid
separator must be replaced at the same time to avoid abnormal conditions inside the gas-liquid
separator, which may affect the safety and reliability of the system.
Place the gas-liquid separator in a suitable position on the chassis, connect the gas-liquid
separator inlet and outlet pipes, and then connect the nitrogen port on the gas-liquid separator
connection pipe. The nitrogen position can be selected according to the site conditions. Use the
bypass interface or directly connect it to the inlet and outlet pipes of the gas-liquid separator. When
the pipelines are large, they can be fixed by tape. Make sure that the nitrogen can flow smoothly
through the gas-liquid separator.
Step 12: Checking/replacing oil separator
If the oil separator is found to contain impurities after it is removed, the oil separator needs to
be replaced.
GMV6 HR DC Inverter VRF Units Service Manual
2. Connect the inlet
and outlet pipes of the
gas liquid separator
3. Weld the inlet and
outlet pipes of the gas
liquid separator
1. Place the gas
liquid separator in
the correct position
4. Fix the gas liquid
separator on the
chassis with bolts
345