Samsung AVXCSH023/032/040CE, Service Manual, Page: 356 / 363

9-5 Samsung Electronics
9-2 Refrigerant Circuit Diagram
9-2-1 Cycle Operation Mode
9-2-1-1 RVXVHT075/100/125FE, RD075/100/125VHXFA, RD075/100/125VRXFA
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Description of function parts
No. Classification Description
1 A DVI (Digital Vapor Injection) compressor
2 B FVI (Fixed Vapor Injection) compressor 1
3 C FVI (Fixed Vapor Injection) compressor 2
4 D PWM solenoid valve
5 E Discharge temperature sensor of DVI compressor
6 F Discharge temperature sensor of FVI compressor 1
7 G Discharge temperature sensor of FVI compressor 2
8 H Oil separator
9 I Capillary tube from oil separator
10 J High pressure switch
11 K Hot gas bypass solenoid valve
12 L Check valve
13 M High pressure sensor
14 N Reversing solenoid valve (4way valve)
15 O Heat exchanger of outdoor unit (Condensing unit)
16 P Ambient air temperature sensor
16 Q Cond_out temperature sensor
17 R Main EEV 1 (For heating operation)
18 S Main EEV 2 (For heating operation)
19 T Check valve
20 U Liquid bypass solenoid valve
20 V EVI EEV
21 W Turbo Intercooler
22 X EVI_in temperature sensor
23 Y EVI_out temperature sensor
25 Z Liquid tube temperature sensor
26 a EVI bypass pilot solenoid valve
27 b Suction temperature sensor
28 c Accumulator
29 d Accumulator CCH (Crank Case Heater)
30 e Oil solenoid valve 1
31 f Oil solenoid valve 2
32 g Oil solenoid valve 3
33 h Oil balancing service valve between units
34 i Low pressure sensor
No. Classification Description
35 j Check valve
36 k Crank case heater of DVI compressor
37 m Crank case heater of FVI compressor 1
38 n Crank case heater of FVI compressor 2
39 o Sump(Base) temperature sensor
40 p Oil temperature sensor
41 q Capillary tube from hot gas bypass valve
42 r Capillary tube from liquid bypass valve
43 s High pressure liquid service valve
44 t Low pressure gas service valve only for HR/MCU unit
45 u EEV of indoor unit
46 v Eva_in temperature sensor
47 w Heat exchanger of indoor unit (Evaporating unit)
48 x Eva_out temperature sensor
49 y HR check valve
50 z Main cooling check valve
51 ⓐ Main cooling pilot solenoid valve
52 ⓑ Outdoor pilot solenoid valve
53 ⓒ HR EEV
54 ⓓ HR EEV check valve
55 ⓔ
High pressure gas service valve in HR/MCU unit
Low pressure gas service valve in HP unit (Heat Pump)
56
ⓕ
Heating solenoid valve
57
ⓖ
Cooling solenoid valve
58 ⓗ MCU liquid bypass solenoid valve
59 ⓘ MCU main heating pilot solenoid valve
60 ⓙ MCU EEV
61 ⓚ Sub cooler_in temperature sensor
62 ⓜ Sub cooler
63 ⓝ Sub cooler_out temperature sensor
64
ⓞ
Sub cooler EEV
65
ⓟ
Liquid service valve between MCU & Indoor unit
66
ⓠ
CGas service valve between MCU & Indoor unit
67 ⓕ EEV bypass service valve
68 ⓢ EEVs for wall mount & ceiling unit in MCU