Samsung AM080FX A Series Service Manual page 314

Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-3 Normal operation modes (cont.)
Heating operation
▪ Purpose
Enable heating in the entire target space.
▪ Control specifications in detail
Actuator
Compressor
Outdoor Fan Motor
Electronic Expansion Valve – Main (Main EEV)
Electronic Expansion Valve – EVI (EVI EEV)
Solenoid Valve - 4way
Solenoid Valve – EVI Bypass
Solenoid Valve – EVI
Solenoid Valve – Hot Gas Bypass
Solenoid Valve – Accumulator Oil Return
Solenoid Valve – Hot Gas Bypass 2 (HR Only)
Solenoid Valve – Main EEV (HR Only)
Solenoid Valve – Main Cooling (HR Only)
▪ Refrigerant Flow
Heat pump
Outdoor Fan Motor 1
↑
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
Abbrev.
V_HG2
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)
-
Operation
COMP
Range
Operation
OFM
Range
Operation
E_M
Range
Operation
E_EVI
Range
V_4W Operation
V_EB Operation
V_EVI Operation
V_HG Operation
V_AR Operation
Operation
V_ME Operation
V_MC Operation
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)
Normal Cooling
Target low pressure control
(default : 8kgf/cm2,g)
14~140Hz
Target high pressure control
(default : 25kgf/cm2,g)
0-39step (0-1300rpm)
Full Open
2000step
*Subcooling control
(default: SC 20 K)
0-480step
Off
On (Open): *T_a > 38℃ or 50Hz ↓
Off (Close): T_a < 36℃↓ and 70Hz ↑
On (Open)
Off (Close)
On (Open)
On (Open)
On (Open)
Off (Close)
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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