Gree GMV-224WM/B-X, Руководство по обслуживанию

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GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
5
7 Oil equalizing device
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.
8
Heat tape of oil equalizing
device
Maintains a proper oil temperature in the compressor when the
compressor is in standby status, ensuring the reliability of
compressor startup.
9 One-way valve
Prevents high-pressure gas from entering the compressor and fast
balances the suction pressure and discharge pressure in a
compressor.
10 High-pressure sensor
Detects the high pressure value in the system in real time mode for
compressor protection and other control functions.
11 Four-way valve
Used for the switching between the cooling and heating functions
of system IDU.
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.