Refrigerant System Diagram - Mitsubishi Electric MUZ-WR09NA Service Manual

6

REFRIGERANT SYSTEM DIAGRAM

MUZ-WR09NA MUZ-WR12NA
Refrigerant pipe ø3/8 (ø9.52)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4 (ø6.35)
(with heat insulator)
MUZ-WR18NA
Refrigerant pipe ø1/2 (ø12.7)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4 (ø6.35)
(with heat insulator)
OBH819B
4-way valve
Muffler
Stop valve
(with service port)
Discharge
temperature
thermistor
RT62
Service port
Capillary tube
O.D. 0.118 × I.D. 0.055
LEV
× 10-1/4
(ø3.0 × ø1.4 × 260)
Stop valve
(with strainer)
4-way valve
Muffler
Stop valve
(with service port)
Discharge
temperature
Service
thermistor
port
RT62
Capillary tube
O.D. 0.157 ×
LEV
I.D. 0.094 × 9-7/16
(ø4.0 × ø2.4 × 240)
Stop valve
(with strainer)
Outdoor
Muffler
heat
exchanger
Service port
Compressor
Defrost
thermistor
RT61
Refrigerant flow in cooling
Refrigerant flow in Heating
Outdoor
Muffler
heat
Service exchanger
port
Compressor
Defrost
thermistor
RT61
Capillary tube
O.D. 0.118 ×
I.D. 0.079 × 8-9/32
(ø3.0 × ø2.0 × 210)
Refrigerant flow in cooling
Refrigerant flow in Heating
12
Unit: Inch (mm)
Outdoor heat
exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Outdoor heat
exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF