Refrigerant System Diagram - Mitsubishi Electric MXZ-4C36NAHZ Service Manual

7-2. REFRIGERANT SYSTEM DIAGRAM

MXZ-4C36NAHZ
Thermistor(TH-A–E)
<Gas pipe temperature>
Room temperature
thermistor
(TH1 or RT11)
Condenser /
evaporator
temperature
thermistor
Pipe temperature
thermistor
(TH2 or RT13)
Strainer
Capillary
tube2
Indoor
Outdoor unit
Branch box
MXZ-8C48NA
Thermistor(TH-A–E)
<Gas pipe temperature>
Room temperature
thermistor
(TH1 or RT11)
Condenser /
evaporator
temperature
thermistor
Pipe temperature
thermistor
(TH2 or RT13)
Strainer
Indoor
Outdoor unit
Branch box
OCH573
MXZ-5C42NAHZ
Service port
Strainer
Ball valve
Thermistor(TH6)
<Suction pipe>
Solenoid valve(SV2)
LEV-A~E
(Linear expansion)
Thermistor(TH2)
<HIC pipe>
Stop valve
Strainer
Service port
Branch box
Capillary tube 1
(For return of oil from oil separator)
MXZ-4C36NAHZ
[0.098 o [0.031 o L(39-1/2)
MXZ-5C42NAHZ
([2.5 o [0.8 o L1000)
MXZ-8C48NAHZ
PAC-MKA50BC
PAC-MKA30BC
Service port
Strainer
Ball valve
Thermistor(TH6)
LEV-A~E
(Linear expansion)
Thermistor(TH2)
<HIC pipe>
Stop valve
Service port
Capillary
tube2
Branch box
Capillary tube 1
(For return of oil from oil separator)
[0.098 o [0.031 o L(39-1/2)
MXZ-8C48NA
([2.5 o [0.8 o L1000)
PAC-MKA50BC
PAC-MKA30BC
MXZ-8C48NAHZ
4-Way Valve
(21S4)
Solenoid valve(SV1)
<Bypass>
Strainer
Check valve
Strainer
<Switching>
Accumulator
Low pressure
sensor(63LS)
HIC
Strainer
Strainer
LEV-B
Outdoor unit
Capillary tube 2 behind LEV
(in cooling mode)
([0.157 o [0.117 o L(5-1/8)) o 5
(([4 o [3.0 o L130) o 5)
([0.157 o [0.117 o L(5-1/8)) o 3
(([4 o [3.0 o L130) o 3)
4-Way Valve
(21S4)
Solenoid valve(SV1)
<Bypass>
Strainer
Check valve
Strainer
<Suction pipe>
Accumulator
HIC
Strainer
Strainer
LEV-B
Strainer
Outdoor unit
Capillary tube 2 behind LEV
([0.157 o [0.117 o L(5-1/8)) o 5
(([4 o [3.0 o L130) o 5)
([0.157 o [0.117 o L(5-1/8)) o 3
(([4 o [3.0 o L130) o 3)
29
Check valve
High pressure
Oil separator switch(63H)
Capillary
tube
High
pressure
sensor(63HS)
Thermistor(TH4)
<Compressor>
Compressor
Thermistor(TH8)
<Heat Sink>
Strainer
LEV-A
Refrigerant flow in cooling Refrigerant flow in cooling
Reftigerant flow in heating
Unit: in (mm)
Check valve
High pressure
Oil separator switch(63H)
Capillary
tube
High
pressure
sensor(63HS)
Thermistor(TH4)
<Compressor>
Low pressure
Compressor
sensor(63LS)
Thermistor(TH8)
<Heat Sink>
Strainer
LEV-A
Refrigerant flow in cooling Refrigerant flow in cooling
Reftigerant flow in heating
Unit: in (mm)
(in cooling mode)
Thermistor(TH7)
<Ambient>
Distributor
Thermistor(TH3)
<Outdoor Liquid pipe>
Thermistor(TH7)
<Ambient>
Distributor
Thermistor(TH3)
<Outdoor Liquid pipe>