GREE                                                          DC Inverter Multi VRF System II Service Manual 
104 
5 Removal of Parts 
5.1 Key parts   
Core part of air conditioning system. It sucks low 
temperature and low pressure gas, compress it to high 
temperature and high pressure gas, and then discharge 
it. 
 
valve
Throttling device. It transforms high pressure refrigerant 
liquid into low pressure steam. 
 
-
It changes the flow direction of refrigerant for switching 
between cooling and heating. 
It stays between discharge outlet of compressor and 
inlet of condenser. It used for separating the lubricant oil 
of compressor when the h
pressure refrigerant gas is discharged from the 
compressor.