Samsung Electronics 7-37-5 Cycle Component Function Explanation1. Accumulator : Separating the incoming liquid refrigerant to the compressor in order to prevent liquid refrigerant.2. Oil Separator : Separating the oil from the refrigerant discharged from the compressor, and the separated oil is returned to the compressor.3. Intercooler : Supercooled liquid refrigerant through the heat exchanger and makes the medium pressure gas refrigerant injected into thecompressor.4. IPM Cooler : IPM (Intelligent Power Module) by cooling to prevent overheating.5. High/Low Pressure Sensor : Measure high/low Pressure of system.6. High Pressure Switch : Suspend immediately for protection of system if high pressure of system exceeds setting value.7. Outdoor EEV (Main EEV) : Adjust the incoming refrigerant to the outdoor heat exchanger during heating operation.8. EVI EEV : By adjusting the amount of refrigerant passing through the Subcooler to obtain the degree of supercooling and adjust the amountof gas refrigerant entering to the compressor.9. 4Way Valve : Change the direction of flow of the refrigerant to the cooling / heating operation.10. ARV (Accumulator Oil Return Valve) : Remaining at the bottom of the Accumulator recovered oil to the compressor.11. MainCooling Valve : In the main cooling operation, sending the high pressure refrigerant to indoor unit in heating mode.12. Outdoor EEV Valve : In the main cooling operation, It's closed so that the Outdoor EEV Valve can control the amount of the refrigerant.13. Hotgas Valve : Sending the high pressure gas to low pressure pipe in order to protect low pressure.14. Hotgas Valve 2 : In the cooling operation, changing high pressure pipe to low pressure pipe.15. EVI SOL V : This valve opens when using the vapor Injection.16. EVI BYPASS V : This valve opens in the sub cooling control. It's closed when using the vapor injection.17. Discharge Temperature Sensor : Measure the temperature of the refrigerant discharged from the compressor.18. Suction Temperature Sensor : Measure the temperature of the refrigerant to the compressor suction.19. Cond. Out Temperature Sensor : Measure the temperature of the outdoor heat exchanger of the air conditioning operation.20. EVI In/Out Temperature Sensor : Measure the temperature of the refrigerant inlet and outlet of the Subcooler.21. Liquid Pipe Temperature Sensor : Measure the temperature of supercooling refrigerant in the outdoor unit of the air conditioning.22. Comp. Top Temperature Sensor : Measure the temperature of compressor top cover.23. Ambient Temperature Sensor : Measure the outdoor temperature.24. Water Temperature Sensor : Plate Heat Exchanger internal temperature measurement25. Control box temp. Sensor : Control box internal temperature measurement, thermal protection used for the control.26. Receiver : Storing the refrigerant piping system, a stable liquid refrigerant supply27. Liquid Tube Valve : Refrigerant in the outdoor unit side, the indoor unit during heating operation to rotate the valve operation.