Gree GMV5E Series Service Manual page 9

GREE
1.3.3 Piping Diagram of GMV-450WM/E-X, GMV-504WM/E-X,
GMV-560WM/E-X and GMV-615WM/E-X
1.3.4 Names and Main Functions of Components
No Name
1 Compressor
2 Compressor heat tape
Compressor casing-top
3
temperature sensor
Exhaust pipe temperature
4
sensor of compressor
High-pressure circuit
5
breaker
6 Oil extractor
7 Oil equalizing device
Heat tape of oil equalizing
8
device
9 One-way valve
10 High-pressure sensor
11 Four-way valve
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
Adjusts its own rotational speed based on the actual requirement of the system to
implement capacity control.
Maintains a proper oil temperature in the compressor when the compressor is in
standby status, ensuring the reliability during compressor startup.
Detects a compressor's exhaust gas temperature for compressor control and
protection.
Detects a compressor's exhaust gas temperature for compressor control and
protection.
Protects a compressor by sending feedback signal to stop the system when the
compressor's discharge temperature exceeds the operating value of high-pressure
circuit breaker.
Separates the gas and oil in the system to ensure compressor reliability.
Equalizes the oil for all modules in the case of excess oil in the current module
when multiple modules are arranged in parallel, thus ensuring the system reliability.
Maintains a proper oil temperature in the compressor when the compressor is in
standby status, ensuring the reliability of compressor startup.
Prevents high-pressure gas from entering the compressor and fast balances the
suction pressure and discharge pressure in a compressor.
Detects the high pressure value in the system in real time mode for compressor
protection and other control functions.
Used for the switching between the cooling and heating functions of system IDU.
5
Main Function