Gree GMV5E Series - Page 10

GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
6
No
Name
Main Function
12
Heat exchanger
Used for outdoor heat exchange.
13
Fan
Strengthens heat exchanging.
14
Defrosting temperature
sensor
Used for defrosting detection.
15
Electronic expansion
valve for heating
Controls refrigerant adjustment in heating mode.
16
One-way valve
Controls refrigerant flow direction.
17
Subcooler electronic
expansion valve
Controls the degree of subcooling of tube refrigerant when the system is running in
cooling mode, and reduces the capacity loss on pipes.
18
Subcooler
Controls the degree of subcooling of tube.
19
Liquid outlet temperature
sensor of subcooler
Detects tube temperature.
20
Inlet temperature sensor
of gas-liquid separator
Detects the inlet temperature of gas-liquid separator to prevent the system from
running when the refrigerant flows back to the compressor.
21
Gas outlet temperature
sensor of subcooler
Detects gas temperature of subcooler.
22
Low-pressure sensor
Detects system low pressure to avoid extra-low operating pressure.
23
Gas-liquid separator
Separate gas and liquid to prevent the system from running when the refrigerant
flows back to the compressor.
24
Outlet temperature
sensor of gas-liquid
separator
Detects internal status of gas-liquid separator to further control the compressor
suction performance.
25
Oil equalizing valve 1
Used for oil equalizing control among modules.
26
One-way valve
Used for oil equalizing control among modules and avoid reverse flow of oil.
27
Unloading valve
Avoids over-high pressure caused by pipeline blind spot.
28
Oil equalizing valve 2
Used for oil equalizing control among modules.
29
Filter
Prevents impurities from entering components and parts.
30
Capillary tube
Supports flow regulating and pressure reduction.
31
Liquid valve
Stop valve, closed when the unit is delivered from the factory and will be opened
after installation.
32
Air valve
Stop valve, closed when the unit is delivered from the factory and will be opened
after installation.
33
Low-pressure
measurement valve
Detects the low pressure value or charges refrigerant during system running.
34
Oil balance valve
Stop valve, closed when the unit is delivered from the factory and will be opened
after installation.
35
Oil check valve
Checks the quality of refrigerating machine oil of compressor during maintenance.
36
Unloading valve
Avoid over-high pressure caused by pipeline blind spot.
37
Air by-pass valve
Avoids extra-high or low operating pressure.
38
Pressure-balanced valve
Ensures success startup of compressor.