SiEBE18-526 Refrigerant Flow for Each Operation ModeRefrigerant Circuit 513.4 Heating Oil Return Operation & Defrost OperationEV C : Full closeEV B : 80 plsEVH : SH controlEVHEVCEVBEVAEVHEVAEVBEVHEVAEVBMMMMMMM(Q0409)HEATHEATEXCHANGERTHERMISTORTHERMISTORHEATHEATEXCHANGERTHERMISTORTHERMISTORHEATHEATEXCHANGERTHERMISTORTHERMISTORHEATHEATEXCHANGERTHERMISTORTHERMISTORHEATHEATEXCHANGERTHERMISTORTHERMISTORHEATHEATEXCHANGERTHERMISTORTHERMISTORHEATHEATEXCHANGERTHERMISTORTHERMISTOREVA : 80 pls EV H : SH controlEVB : 80 plsEV H : Full closeEVB : 80 plsEVA : SH controlEVA : SH controlOUTDOOR UNITCOMPRESSOROUTDOOR AIRTHERMISTORDC FANMOTORPROPELLERFANDC FANMOTORLIQUID SEAL PROTECTIONCHECK VALVEHEAT EXCHANGERTHERMISTORDISCHARGEPIPETHERMISTORHIGH PRESSURESWITCHELECTRONICEXPANSION VALVEDISTRIBUTORFILTERCHECKVALVECHECKVALVECHECKVALVE CHECKVALVEELECTRONICEXPANSION VALVEDOUBLE PIPEHEAT EXCHANGER FILTERHEATEXCHANGER PIPEFILTERSUBCOOLINGHEAT EXCHANGERTHERMISTOR: High pressure liquid refrigerant: High pressure high temp. gas refrigerant: Low pressure low temp. liquid or gas refrigerantEV1 SH control → 2000 pls → 200~400 plsEV2 Full closeSVP OFF → ONSVG ON → OFF → ON → OFFBP UNITELECTRONICEXPANSION VALVE(BYPASS) ELECTRONICEXPANSION VALVE(ROOM A)ELECTRONICEXPANSION VALVE(ROOM B)FILTERFILTERFILTERGAS SIDETHERMISTOR(DGA)GAS SIDETHERMISTOR(DGB)LIQUID SIDETHERMISTOR(DLB)LIQUID SIDETHERMISTOR(DLA)FILTERELECTRONICEXPANSION VALVE(ROOM A)ELECTRONICEXPANSION VALVE(ROOM B)FILTERFILTERFILTERFILTERGAS SIDETHERMISTOR(DGA)GAS SIDETHERMISTOR(DGB)ELECTRONICEXPANSION VALVE(BYPASS)LIQUID SIDETHERMISTOR(DLB)LIQUID SIDETHERMISTOR(DLA)ELECTRONICEXPANSION VALVE(BYPASS)FILTERFILTERFILTERFILTERELECTRONICEXPANSION VALVE(ROOM A)ELECTRONICEXPANSION VALVE(ROOM B)ELECTRONICEXPANSION VALVE(ROOM C)FILTERGAS SIDETHERMISTOR(DGA)GAS SIDETHERMISTOR(DGB)GAS SIDETHERMISTOR(DGC)LIQUID SIDETHERMISTOR(DLA)LIQUID SIDETHERMISTOR(DLB)LIQUID SIDETHERMISTOR(DLC)"ON""OFF""OFF"FIELD PIPINGFIELD PIPINGFIELD PIPINGFIELD PIPINGFIELD PIPINGFIELD PIPINGSIRROCO FANFAN MOTORSIRROCO FANFAN MOTORSIRROCO FANFAN MOTORHEAT EXCHANGERHEAT EXCHANGERHEAT EXCHANGERHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTOR"OFF"FIELD PIPING SIRROCO FANFAN MOTORHEAT EXCHANGERHEATEXCHANGERTHERMISTORFIELD PIPING"ON""ON""OFF"FIELD PIPINGFIELD PIPINGFIELD PIPINGFIELD PIPINGFIELD PIPINGFIELD PIPINGSIRROCO FANFAN MOTORSIRROCO FANFAN MOTORSIRROCO FANFAN MOTORHEAT EXCHANGERHEAT EXCHANGERHEAT EXCHANGERHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORSPSPHPSSV PSV GEV1EV2MMRECEIVERFILTER4-WAY VALVEHIGH PRESSURESENSORFILTERGAS LINESTOP VALVELIQUID LINESTOP VALVEOILSEPARATORCAPILLARY TUBESUCTION PIPETHERMISTORLOW PRESSURESENSOR