Samsung Electronics 286
No Part Name Abbreviation Symbol Function
1 Inveter Compressor INV
This type of compressor uses a drive to control the compressor motor
speed to modulate cooling capacity.
2 Outdoor Fan Motor OFM
The outdoor air and the refrigerant to heat exchange through the heat
exchanger
3
Outdoor Heat Exchanger
(Heat Exchanger - Main (Outdoor unit))
OHX (HX_M)
By heat exchange of the outdoor air and the refrigerant thereby
condensing the refrigerant during a cooling operation
and evaporating the refrigerant during a heating operation.
4 Accumulator AC
It prevents liquid compression to separate the liquid refrigerant owing
into the compressor.
5 Oil Separator OS
Separating the oil from the refrigerant discharged from the compressor,
and sends the separated oil to the compressor.
6 Reservoir RE
When cooling operation stores the liquid refrigerant, when heating
operation and stores the gaseous refrigerant.
When the refrigerant ow heating and cooling operation to eliminate
imbalances.
7
Intercooler
(Heat Exchanger - Intercooler)
IC (HX_IC)
The heat exchange between the refrigerant in the pipe and passing
through the EVIEEV.
8 IPM Cooler IPMC
By heat exchange between the liquid refrigerant and IPM, prevent
overheating of IPM and protect the system.
9
High Pressure Sensor
(Pressure Sensor-High)
HPS (PS_H)
By measuring the pressure (high pressure) of the compressor discharge,
protects the pressure control & system.
10
Low Pressure Sensor
(Pressure Sensor-Low)
LPS (PS_L)
By measuring the pressure (low pressure) of the compressor suction,
protects the pressure control & system.
11
High Pressure Switch
(Pressure Switch-High)
HPSW (PW_H)
By stopping the system immediately to the high pressure exceeds the set
pressure and protects the system.
12
Main EEV
(Electronic Expansion Valve-Main)
E_M
By controlling the amount of refrigerant during the heating operation and
it controls the superheat.
13
EVI EEV
(Electronic Expansion Valve-EVI)
E_EV (E_EVI) By controlling the amount of refrigerant passing through the intercooler
14
EVI Sol. Valve
(Solenoid valve-EVI)
V_ES (V_EVI)
"When the compressor stops, close the valve.
The refrigerant having passed through the EVI EEV prevents the inow of
the stopped compressor."
15
EVI Bypass Valve
(Solenoid valve-EVI Bypass)
V_EB
In Vapor/Flash Injection Requires close the valve to ow the refrigerant to
the compressor.
16
Hot Gas Bypass Valve
(Solenoid valve-Hot Gas Bypass)
V_HG
When high pressure is abnormally high, when low pressure is abnormally
low, Opening the valve by-pass the high-pressure gas to the low pressure
pipe to protect the system.
17
Hot Gas Bypass Valve 2
(Solenoid valve-Hot Gas Bypass 2)
V_HG2
To open the valve when the cooling operation alone. Convert the high-
pressure gas pipe to the low pressure gas pipe. (HR Only)
18
Outdoor EEV Valve
(Solenoid valve - Main EEV)
V_OE (V_ME)
Close the main valve in the cooling operation and to control the amount of
refrigerant in the Main EEV. (HR Only)
19
MainCooling Valve
(Solenoid valve - Main Cooling)
V_MC
Opening the valve during cooling operation and sends a high-pressure
gas into the indoor unit for the heating operation. (HR Only)
20
Accumulator Oil Return Valve (Solenoid
valve-Accumulator Oil Return)
V_AR
Opening the valve during operation and sends the oil which accumulates
in the lower liquid separator to the compressor.
7. Piping Diagram
7-1 Piping Diagram
- Cycle component Symbol and Function