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Piping Diagram
7-2 Refrigerant Flow for Each Operation Mode (cont.)
7-2-5 DVM S Heat Recovery – Heating operation
Check Valve -
Outdoor Fan Motor 1
Main Cooling
(CV_MC)
Solenoid Valve -
Main Cooling
(V_MC)
Check
Valve -
Heat
Recovery
(CV_HR)
Solenoid Valve -
Solenoid Valve -
Pressure
4Way (V_4W)
4Way (V_4W2)
Sensor -
High1
(PS_H1)
Solenoid Valve -
Check Valve -
Hot Gas bypass
Discharge1
(CV_D2)
(V_HG)
(CV_D1)
Pressure
Oil
Switch -
Separator1
(OS2)
High1
(OS1)
(PW_H1)
Pressure
Switch -
(PW_H2)
High1
(PW_H1)
Thermistor -
Discharge1
Thermistor -
(T_D2)
pipe
(T_CT2)
Compressor
(T_D1)
Top1
(T_CT1)
Compressor1
Compressor2
(COMP1)
(COMP2)
Solenoid
Solenoid
Valve -
Valve -
EVI1
EVI2
(V_EVI1)
(V_EVI2)
Samsung Electronics
Outdoor Fan Motor 2
(OFM1)
(OFM2)
Thermistor -
Ambient
(T_A)
Thermistor -
Cond Out
(T_CO)
Heat Exchanger - Main (HX_M)
Solenoid Valve -
Main EEV2
(V_ME2)
Check Valve -
EEV Bypass
(CV_EB)
Thermistor -
Suction pipe1
(T_S1)
Pressure
Sensor -
Low
Thermistor -
(PS_L)
Suction pipe2
(T_S2)
Solenoid
Valve -
Thermistor -
EVI Bypass
EVI Out
(V_EB)
(T_EO)
Thermistor -
EVI In
(T_EI)
Accumulator
(AC)
Electronic
Expansion
Valve -
EVI (E_EVI)
Solenoid Valve -
Accumulatoroil Return
(V_AR)
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Ball Valve -
High pressure
Gas pipe
(BV_HG)
Solenoid
Valve -
Hot Gas
bypass 2
(V_HG2)
Electronic
Expansion
Valve -
Main
(E_M)
Ball Valve -
Low pressure
Gas pipe
(BV_LG)
IPM Cooler
(IPMC)
Heat
Exchanger -
Intercooler
(HX_IC)
Ball Valve -
Thermistor -
Liquid pipe
Liquid pipe
(BV_L)
(T_L)
High Temperature & Pressure Gas
High Temperature & Pressure Liquid
Low Temperature & Pressure Gas
Low Temperature & Pressure Vapor
HEAT
FAN ON
HEAT
FAN ON
HEAT
FAN ON
OFF
FAN OFF
HEAT
FAN ON
OFF
FAN OFF
216
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