Gree Ultra Heat GMV-V72W/A-F, Руководство по обслуживанию, Страница: 14 / 240

Ultra Heat GMV VRF Technical Service Manual UNIT INTRODUCTION
9
9 Heat exchanger Used for outdoor heat exchange.
10 Fan Strengthens heat exchanging.
11 Defrosting temperature sensor Used for defrosting detection.
12
Electronic expansion valve for
heating
Controls refrigerant adjustment in heating mode.
13 One-way valve Controls refrigerant flow direction.
14 Unloading valve Opening if the pressure inside the liquid pipe /gas pipe is too high.
15
Sub cooler electronic expansion
valve
Reduces the pressure and temperature of ramous refrigerant to cool the
main branch refrigerant.
16 Sub cooler Controls the degree of sub cooling of tube.
17
Liquid outlet temperature sensor of
sub cooler
Detects tube temperature.
18 Middle-pressure sensor Detects system middle pressure.
19
Gas outlet temperature sensor of
sub cooler
Detects gas temperature of sub cooler.
20 Compensate vapor valve Used for compensating vapor for second compression.
21 Sub-cooling valve Used for providing with sub-cooling liquid.
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 return valve 1 Oil return control for the compressor.
26
Inlet temperature sensor of
gas-liquid separator
Detects inlet temperature of gas-liquid separator.
27 Fusible plug
Opening if the pressure or the temperature inside the accumulator or
liquid-gas separator is too high
28 One-way valve Controls refrigerant flow direction.
29 One-way valve Controls refrigerant flow direction.
30 Filter Prevents impurities from entering components and parts.
31 Capillary tube Supports flow regulating and pressure reduction.
32 Oil return valve Oil return control for the compressor.
33 Pressure-balanced valve Ensures success startup of compressor.
34 Varying capacity valve 1 To make the compressor turn with double cylinders.
35 Varying capacity valve 2 To make the compressor turn with triple cylinders.
36 Oil-balanced valve 1 Make sure oil of the system is balanced.
37 Oil-balanced valve 2 Make sure oil of the modules is balanced.
38 Gas-bypass valve Make sure pressure of the system is balanced.
39 One-way valve
Prevents high-pressure gas from entering the compressor and fast balances
the suction pressure and discharge pressure in a compressor.
40 Oil orifice To charge compressor oil.
41 Gas pipe valve
Stop valve, closed when the unit is delivered from the factory and will be
opened after installation.
42 Low-pressure measurement valve
Detects the low pressure value or charges refrigerant during system
running.
43 Liquid pipe valve
Stop valve, closed when the unit is delivered from the factory and will be
opened after installation.