Piping Diagram
Samsung Electronics 217
7-2-6 DVM S Heat Recovery – Main heating operation
7-2 Refrigerant Flow for Each Operation Mode (cont.)
HEAT
FAN ON
HEAT
FAN ON
HEAT
FAN ON
HEAT
FAN ON
COOL
FAN ON
COOL
FAN ON
High Temperature & Pressure Gas
High Temperature & Pressure Liquid
Low Temperature & Pressure Gas
Low Temperature & Pressure Vapor
Solenoid Valve -
Hot Gas bypass
(V_HG)
Thermistor -
Discharge1
pipe
(T_D1)
Thermistor -
Compressor
Top1
(T_CT1)
(T_D2)
(T_CT2)
Oil
Separator1
(OS1)
(OS2)
Pressure
Switch -
High1
(PW_H1)
(PW_H2)
Ball Valve -
High pressure
Gas pipe
(BV_HG)
Thermistor -
Ambient
(T_A)
Heat Exchanger - Main (HX_M)
Thermistor -
Suction pipe1
(T_S1)
Thermistor -
Suction pipe2
(T_S2)
IPM Cooler
(IPMC)
Heat
Exchanger -
Intercooler
(HX_IC)
Thermistor -
EVI In
(T_EI)
Thermistor -
Liquid pipe
(T_L)
Electronic
Expansion
Valve -
EVI (E_EVI)
Ball Valve -
Liquid pipe
(BV_L)
Solenoid Valve -
Accumulatoroil Return
(V_AR)
Pressure
Sensor -
Low
(PS_L)
Solenoid
Valve -
EVI1
(V_EVI1)
Check Valve -
Discharge1
(CV_D1)
Check Valve -
Main Cooling
(CV_MC)
Solenoid Valve -
Main Cooling
(V_MC)
Check
Valve -
Heat
Recovery
(CV_HR)
Solenoid
Valve -
Hot Gas
bypass 2
(V_HG2)
Ball Valve -
Low pressure
Gas pipe
(BV_LG)
Pressure
Switch -
High1
(PW_H1)
Solenoid Valve -
4Way (V_4W)
Pressure
Sensor -
High1
(PS_H1)
Solenoid
Valve -
EVI2
(V_EVI2)
(CV_D2)
Compressor1
(COMP1)
Solenoid
Valve -
EVI Bypass
(V_EB)
Thermistor -
EVI Out
(T_EO)
Outdoor Fan Motor 1
(OFM1)
Outdoor Fan Motor 2
(OFM2)
Thermistor -
Cond Out
(T_CO)
Electronic
Expansion
Valve -
Main
(E_M)
Check Valve -
EEV Bypass
(CV_EB)
Solenoid Valve -
Main EEV2
(V_ME2)
Compressor2
(COMP2)
Solenoid Valve -
4Way (V_4W2)
Accumulator
(AC)
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