Gree Ultra Heat GMV-VQ72W/A-F, Руководство по обслуживанию

Страница: 13 / 207

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial UNIT INTRODUCTION
9
7 One-way valve
Prevents high-pressure gas from entering the compressor and fast balances the
suction pressure and discharge pressure in a compressor.
8 High-pressure sensor
Detects the high pressure value in the system in real time mode for compressor
protection and other control functions.
9 Four-way valve 1 Used for the switching between the cooling and heating functions of system IDU.
10 Heat exchanger Used for outdoor heat exchange.
11 Fan Strengthens heat exchanging.
12 Defrosting temperature sensor Used for defrosting detection.
13
Electronic expansion valve for
heating
Controls refrigerant adjustment in heating mode.
14 One-way valve Controls refrigerant flow direction.
15 Unloading valve Opening if the pressure inside the liquid pipe /gas pipe is too high.
16
Sub cooler electronic
expansion valve
Reduces the pressure and temperature of ramous refrigerant to cool the main
branch refrigerant.
17 Sub cooler Controls the degree of sub cooling of tube.
18
Liquid outlet temperature
sensor of sub cooler
Detects tube temperature.
19 Middle-pressure sensor Detects system middle pressure.
20
Gas outlet temperature sensor
of sub cooler
Detects gas temperature of sub cooler.
21 Compensate vapor valve Used for compensating vapor for second compression.
22 Sub-cooling valve Used for providing with sub-cooling liquid.
23 Low-pressure sensor Detects system low pressure to avoid extra-low operating pressure.
24 Gas-liquid separator
Separate gas and liquid to prevent the system from running when the refrigerant
flows back to the compressor.
25
Outlet temperature sensor of
gas-liquid separator
Detects internal status of gas-liquid separator to further control the compressor
suction performance.
26 Oil return valve 1 Oil return control for the compressor.
27
Inlet temperature sensor of
gas-liquid separator
Detects inlet temperature of gas-liquid separator.
28 Fusible plug
Opening if the pressure or the temperature inside the accumulator or liquid-gas
separator is too high.
29 One-way valve Controls refrigerant flow direction.
30 One-way valve Controls refrigerant flow direction.
31 Liquid intake valve Liquid intake control valve for refrigerant adjustment tank.
32 Pressure valve Pressure control valve for refrigerant adjustment tank.
33 Pressure balance valve Press control valve inside the refrigerant adjustment tank.
34 Drain valve for cooling Drainage control valve for cooling of refrigerant adjustment tank.
35 Filter Prevents impurities from entering components and parts.
36 Capillary tube Supports flow regulating and pressure reduction.