Samsung AM072BXV Series Service Manual page 254

Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-4 Special operation modes (cont.)
▪ Refrigerant Flow
Heat Pump - Cooling
↑
Solenoid Valve -
4Way (V_4W)
Pressure Sensor -
High (PS_H)
Solenoid Valve -
Hot Gas bypass (V_HG)
Check Valve -
Discharge 1
(CV_D2)
(CV_D1)
Oil Separator 1
(OS2)
(OS1)
Pressure
Switch -
↑ ↑
(PW_H2)
High 1
(PW_H1)
Thermistor -
(T_D2)
Discharge
pipe 1 (T_D1)
Thermistor -
Compressor
(T_CT2)
Top 1
(T_CT1)
Compressor 1
(COMP2)
(COMP1)
Solenoid
Valve -
(V_EVI2)
EVI 1(V_EVI1)
Heat Pump - Heating
↑
Solenoid Valve -
4Way (V_4W)
Pressure Sensor -
High (PS_H)
Solenoid Valve -
Hot Gas bypass (V_HG)
Check Valve -
Discharge 1
(CV_D2)
(CV_D1)
Oil Separator 1
(OS2)
(OS1)
Pressure
Switch -
↑ ↑
(PW_H2)
High 1
(PW_H1)
Thermistor -
Discharge (T_D2)
pipe 1 (T_D1)
Thermistor -
Compressor
(T_CT2)
Top 1
(T_CT1)
Compressor 1
(COMP2)
(COMP1)
Solenoid
Valve -
(V_EVI2)
EVI 1(V_EVI1)
Samsung Electronics
Outdoor Fan Motor 1 Outdoor Fan Motor 2
(OFM1) (OFM2)
Thermistor - Ambient (T_A)
Thermistor -
Cond Out (T_CO)
Heat Exchanger - Main (HX_M)
Check Valve -
Thermistor - Suction pipe (T_S)
EEV Bypass (CV_EB)
Solenoid Valve -
4Way (V_4W2)
Solenoid Valve -
EVI Bypass
Thermistor -
(V_EB)
EVI Out (T_EO)
Accumulator
(AC)
Pressure Sensor -
Low (PS_L)
Solenoid Valve -
Accumulator oil Return (V_AR)
Outdoor Fan Motor 1 Outdoor Fan Motor 2
(OFM1)
(OFM2)
Thermistor - Ambient (T_A)
Thermistor -
Cond Out (T_CO)
Heat Exchanger - Main (HX_M)
Check Valve -
Thermistor - Suction pipe (T_S)
EEV Bypass (CV_EB)
Solenoid Valve -
4Way (V_4W2)
Solenoid Valve -
EVI Bypass
Thermistor -
(V_EB)
EVI Out (T_EO)
Accumulator
(AC)
Pressure Sensor -
Low (PS_L)
Solenoid Valve -
Accumulator oil Return (V_AR)
Ball Valve -
Gas pipe (BV_G)
Electronic Expansion
Valve - Main (E_M)
IPM Cooler 1
(IPMC1)
IPM Cooler 2
(IPMC2)
Heat Exchanger -
Intercooler (HX_IC)
Thermistor -
EVI In (T_EI)
Electronic
Expansion
Valve -
EVI (E_EVI)
Thermistor -
Liquid pipe (T_L)
Ball Valve -
Liquid pipe (BV_L)
Ball Valve -
Gas pipe (BV_G)
Electronic Expansion
Valve - Main (E_M)
IPM Cooler 1
(IPMC1)
IPM Cooler 2
(IPMC2)
↑
Heat Exchanger -
Intercooler (HX_IC)
Thermistor -
EVI In (T_EI)
Electronic
Expansion
Valve -
EVI (E_EVI)
Thermistor -
Liquid pipe (T_L)
Ball Valve -
Liquid pipe (BV_L)
High Temper atur e & pr essur e Gas
High Temper atur e & pr essur e Liquid
Low Temper atur e & pr essur e Gas
Low Temper atur e & pr essur e Liquid
COOL
FAN ON
Outdoor He at Ex changer (OHX)
COOL
FAN ON
Outdoor He at Ex changer (OHX)
COOL
FAN ON
Outdoor He at Ex changer (OHX)
OFF
FAN OFF
Outdoor He at Ex changer (OHX)
COOL
FAN ON
Outdoor He at Ex changer (OHX)
OFF
FAN OFF
Outdoor He at Ex changer (OHX)
High Temper atur e & pr essur e Gas
High Temper atur e & pr essur e Liquid
Low Temper atur e & pr essur e Gas
Low Temper atur e & pr essur e Liquid
HEAT
FAN ON
Outdoor He at Ex changer (OHX)
HEAT
FAN ON
Outdoor He at Ex changer (OHX)
HEAT
FAN ON
Outdoor He at Ex changer (OHX)
OFF
FAN OFF
Outdoor He at Ex changer (OHX)
HEAT
FAN ON
Outdoor He at Ex changer (OHX)
OFF
FAN OFF
Outdoor He at Ex changer (OHX)
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