Refrigerant System Diagram; Liquid Piping; Gas Piping - Mitsubishi Electric PUMY-P112VKM4 Technical & Service Manual

7-3. REFRIGERANT SYSTEM DIAGRAM

Service port
Strainer
Refrigerant Gas pipe
Ball valve
Thermistor (TH2)
<HIC pipe>
Stop valve
Refrigerant
Liquid pipe
Service port
Capillary tube for oil separator: ø2.5 × ø0.8 × L1000
Refrigerant piping specifications <dimensions of flared connector>
Capacity
Indoor unit P10, P15, P20, P25, P32, P40, P50
P63, P80, P100, P125, P140
Outdoor unit P112, P125, P140
Note: When connecting the CONNECTION KIT (PAC-LV11M-J) and an M-series indoor unit, refer to the installation manual
for the CONNECTION KIT.
OCH673D
4-way valve
Solenoid
valve (SV1)
Check valve
<Low pressure>
Thermistor (TH6)
<Suction pipe>
Low pressure
sensor(63LS)
Restrictor
valve
Accumulator
HIC
Strainer
LEV-B
Strainer
Item
Check valve
<High pressure>
High pressure
sensor (63H)
Oil separator
High pressure
Strainer
switch
Capillary
Strainer
tube
Thermistor (TH4)
<Compressor>
Compressor
Strainer
LEV-A

Liquid piping

ø6.35 <1/4>
ø9.52 <3/8>
ø9.52 <3/8>
39
Thermistor (TH7)
<Ambient>
Distributor
Thermistor (TH3)
<Outdoor liquid pipe>
Strainer
Refrigerant flow in cooling
Refrigerant flow in heating
Unit: mm <in>

Gas piping

ø12.7 <1/2>
ø15.88 <5/8>
ø15.88 <5/8>