Samsung AVXTJH028EE - Refrigerant Circuit Diagram; Cycle Operation Mode

9-5 Samsung Electronics
9-2 Refrigerant Circuit Diagram
9-2-1 Cycle Operation Mode
■ Description of function parts
No Classification Description No Classification Description
1 C1 DVI (Digital Vapor Injection) compressor 36 SV1 High pressure gas service valve
2 C2 FVI (Fixed Vapor Injection) compressor 1 37 SV2 High pressure liquid service valve
3 C3 FVI (Fixed Vapor Injection) compressor 2 38 SV3 Low pressure gas service valve only for HR/MCU unit
4 A Accumulator 39 SV4 Oil balancing service valve between units
5 O Oil separator 40 CP1 Capillary tube from oil separator
6 S Turbo Intercooler 41 CP2 Capillary tube from hot gas bypass valve
7HX
Heat exchanger of outdoor unit
(Condensing unit)
42 CP3 Capillary tube from oil gas bypass valve
8 PS High pressure switch 43 CP4 Capillary tube from liquid bypass valve
9 PH High pressure sensor 44 T1 Discharge temperature sensor of DVI compressor
10 PL Low pressure sensor 45 T11 Discharge temperature sensor of FVI compressor 1
11 E1 Main EEV (For heating operation) 46 T12 Discharge temperature sensor of FVI compressor 2
12 E2 EVI EEV 47 T2 Sump(Base) temperature sensor of DVI compressor
13 E3 HR EEV 48 T21 Sump(Base) temperature sensor of FVI compressor 1
14 CH Crank case heater of compressor 49 T22 Sump(Base) temperature sensor of FVI compressor 2
15 AH Crank case heater of accumulator 50 T3 Suction 1 temperature sensor
16 F Reversing solenoid valve (4Way valve) 51 T31 Suction 2 temperature sensor
17 V1 PWM solenoid valve 52 T4 Ambient air temperature sensor
18 V2 Hot gas bypass solenoid valve 53 T5 Cond out temperature sensor
19 V3 Oil gas bypass solenoid valve 54 T6 EVI in temperature sensor
20 V4 Liquid bypass solenoid valve 55 T7 EVI out temperature sensor
20 V5 EVI bypass solenoid valve 56 T8 Liquid tube temperature sensor
21 V6 EVI solenoid valve of DVI compressor 57 T9 Oil temperature sensor
22 V61 EVI solenoid valve of FVI compressor 1 58 s MCU Sub cooler
23 V62 EVI solenoid valve of FVI compressor 2 59 e1 MCU Sub cooler EEV
25 V7 Oil solenoid valve 1 60 e2 MCU EEV
26 V71 Oil solenoid valve 2 61 v1 MCU main heating solenoid valve
27 V72 Oil solenoid valve 3 62 v2 MCU liquid bypass solenoid valve
28 V8 Main cooling pilot solenoid valve 63 v3 MCU Cooling solenoid valve
29 V9 Outdoor pilot solenoid valve 64 v4 MCU Heating solenoid valve
30 CV1 Suction check valve 65 t1 MCU Sub cooler in temperature sensor
31 CV2 Discharge check valve 66 t2 MCU Sub cooler out temperature sensor
32 CV3 EEV bypass check valve 67 (hx) Heat exchanger of indoor unit (Evaporating unit)
33 CV4 Main cooling check valve 68 (e1) EEV of indoor unit
34 CV5 HR check valve 69 (t1) Eva in temperature sensor
35 CV6 HR EEV check valve 70 (t2) Eva out temperature sensor
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