Samsung AM080FX A Series Service Manual page 326

Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-4 Special operation modes (cont.)
▪ Refrigerant Flow
Heat Pump - Cooling
↑
Thermistor - Suction pipe (T_S)
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
↑
Thermistor - Suction pipe (T_S)
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 -
EEV Bypass (CV_EB)
Solenoid Valve -
EVI Bypass
Thermistor -
(V_EB)
EVI Out (T_EO)
Accumulator
(AC)
Pressure Sensor -
Low (PS_L)
Thermistor -
Liquid pipe (T_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 -
EEV Bypass (CV_EB)
↑
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)
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 Temperature & pressure Gas
High Temperature & pressure Liquid
Low Temperature & pressure Gas
Low Temperature & pressure Liquid
COOL
FAN ON
Outdoor Heat Exchanger (OHX)
COOL
FAN ON
Outdoor Heat Exchanger (OHX)
COOL
FAN ON
Outdoor Heat Exchanger (OHX)
OFF
FAN OFF
Outdoor Heat Exchanger (OHX)
COOL
FAN ON
Outdoor Heat Exchanger (OHX)
OFF
FAN OFF
Outdoor Heat Exchanger (OHX)
High Temperature & pressure Gas
High Temperature & pressure Liquid
Low Temperature & pressure Gas
Low Temperature & pressure Liquid
HEAT
FAN ON
Outdoor Heat Exchanger (OHX)
HEAT
FAN ON
Outdoor Heat Exchanger (OHX)
HEAT
FAN ON
Outdoor Heat Exchanger (OHX)
OFF
FAN OFF
Outdoor Heat Exchanger (OHX)
HEAT
FAN ON
Outdoor Heat Exchanger (OHX)
OFF
FAN OFF
Outdoor Heat Exchanger (OHX)
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