6
4. Refrigerant System Diagram
Cooling & Heating Models
Refrigerant System Diagram
outdoor
indoor
D1
C
1
B1
A1
filter
A  heat exchanger
gas -liquid  separator
inverter compressor
discharge  silencer
discharge temperature 
sensor
SP
4-way  valve
outdoor  heat  exchanger
fan
high  pressure  switch
B  heat  exchanger
C heat  exchanger
D  heat  exchanger
filter
filter
filter
filter
Note: Not available for 14K/18K 
model 
C2
C3
D3
D2
B3
B2
A2
A3
A1:A-unit electronic expansion valve   B1:B-unit electronic expansion valve
C1:C-unit electronic expansion valve   D1:D-unit electronic expansion valve
A2:A-unit gas pipe temperature sensor   B2:B-unit gas pipe temperature sensor
C2:C-unit gas pipe temperature sensor   D2:D-unit gas pipe temperature sensor
A3:A-unit liquid pipe temperature sensor   B3:B-unit liquid pipe temperature sensor
C3:C-unit liquid pipe temperature sensor    D3:D-unit liquid pipe temperature sensor
Note: Not available for 14K/18K model