SiUS181305E Refrigerant Flow for Each Operation ModeRefrigerant Circuit 383.4 Heating Oil Return Operation & Defrost OperationEV C : Full closeEVB : 80 pulseEVH : SH controlOUTDOOR UNIT INDOOR UNITFILTERFILTER EVHEVCEVBEVAFILTERFILTERFILTERFILTERFILTER EVHEVAEVB FILTERFILTERFILTERFILTER EVHEVAEVB FILTERFILTERFIELD PIPINGFIELD PIPING SIROCCO FANFAN MOTORMHEAT EXCHANGERMMMMMMBP UNIT(R15419)EV A : 80 pulse EV H : SH controlEV B : 80 pulseEVH : Full closeEV B : 80 pulseEVA : SH controlEVA : SH controlFIELD PIPINGFIELD PIPING SIROCCO FANFAN MOTORHEAT EXCHANGERFIELD PIPINGFIELD PIPINGFAN MOTORHEAT EXCHANGERFIELD PIPINGFIELD PIPINGFAN MOTORHEAT EXCHANGERFIELD PIPINGFIELD PIPINGFAN MOTORHEAT EXCHANGERFIELD PIPINGFIELD PIPINGFAN MOTORHEAT EXCHANGERFIELD PIPINGOFFOFFOFFOFFONONONFIELD PIPINGFAN MOTORHEAT EXCHANGERSIROCCO FANSIROCCO FANSIROCCO FANSIROCCO FANSIROCCO FANELECTRONICEXPANSION VALVE (BYPASS) ELECTRONICEXPANSION VALVE (ROOM A)ELECTRONICEXPANSION VALVE (ROOM B)LIQUID SIDETHERMISTOR (DLA)LIQUID SIDETHERMISTOR (DLB)GAS SIDETHERMISTOR (DGA)GAS SIDETHERMISTOR (DGB)ELECTRONICEXPANSION VALVE (BYPASS) ELECTRONICEXPANSION VALVE (ROOM A)ELECTRONICEXPANSION VALVE (ROOM B)LIQUID SIDETHERMISTOR (DLA)LIQUID SIDETHERMISTOR (DLB)GAS SIDETHERMISTOR (DGA)GAS SIDETHERMISTOR (DGB)ELECTRONICEXPANSION VALVE (ROOM A)ELECTRONICEXPANSION VALVE (ROOM B)ELECTRONICEXPANSION VALVE (ROOM C)GAS SIDETHERMISTOR (DGA)GAS SIDETHERMISTOR (DGB)GAS SIDETHERMISTOR (DGC)LIQUID SIDETHERMISTOR (DLA)LIQUID SIDETHERMISTOR (DLC)LIQUID SIDETHERMISTOR (DLB)ELECTRONICEXPANSION VALVE (BYPASS)SVSVSERVICE PORTFILTERFILTERFILTERFILTERFILTERHEAT EXCHANGERCOMPRESSORACCUMULATOR: High pressure liquid refrigerant: High pressure high temp. gas refrigerant: Low pressure low temp. liquid or gas refrigerantSOLENOIDVALVE(Y2S)CAPILLARYTUBEHIGH PRESSURESWITCHCAPILLARYTUBE SOLENOIDVALVELOW PRESSURESENSORCAPILLARYTUBEHIGH PRESSURESENSOROILSEPARATORFOUR WAYVALVESERVICEPORTPRESSUREREGULATING VALVEELECTRONICEXPANSION VALVE(Y1E)DOUBLE PIPEHEAT EXCHANGERELECTRONICEXPANSION VALVE (Y3E)GAS LINESTOP VALVELIQUID LINESTOP VALVEY1EY3EY2S480 pulse55 pulseOFFHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTORHEATEXCHANGERTHERMISTOR
