Refrigerant System Diagram - Mitsubishi Electric MUZ-GL09NA Service Manual

6

REFRIGERANT SYSTEM DIAGRAM

MUZ-GL09NA MUZ-GL09NAH MUY-GL09NA
MUZ-GL12NA MUZ-GL12NAH MUY-GL12NA
MUZ-GL15NA MUZ-GL15NAH MUY-GL15NA
Refrigerant pipe ø3/8 (ø9.52) (GL09/12)
ø1/2 (ø12.7) (GL15)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4 (ø6.35)
(with heat insulator)
MUZ-GL18NA MUZ-GL18NAH MUY-GL18NA
Refrigerant pipe ø1/2 ( ø 12.7)
(with heat insulator)
Stop valve
(with service port)
Flared connection
Flared connection
Stop valve
Refrigerant pipe ø1/4 ( ø 6.35)
(with heat insulator)
OBH733G
4-way valve
Muffler
Stop valve
(with service port)
Discharge
temperature
Service
thermistor
port
RT62
Capillary tube
O.D. 0.118 ×
I.D. 0.079 × 9-7/16
(ø3.0 × ø2.0 × 240)
(MUZ-GL09NA(H)-
U1 , U2
MUY-GL09NA- )
U2
Capillary tube
O.D. 0.157 ×
I.D. 0.094 × 9-7/16
LEV
(ø4.0 × ø2.4 × 240)
(Other models )
Stop valve
(with strainar)
4-way
valve
Discharge
temperature
Service
thermistor
port
RT62
Compressor
Muffler
Strainer
#100
Capillary tube
O.D. 0.157×
I.D. 0.094×
3-15/16
(ø4.0×ø2.4×100)
Outdoor
Muffler
heat
Service exchanger
port
Compressor
Defrost
thermistor
RT61
(MUZ)
Capillary tube
O.D. 0.118 ×
Strainer
I.D. 0.079 × 8-9/32
#100
(ø3.0 × ø2.0 × 210)
R.V. coil (MUZ)
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating (MUZ)
Muffler
with #100 mesh strainer
Service port
Defrost
thermistor
RT61
(MUZ)
Capillary tube
O.D. 0.118×
I.D. 0.079× 7-7/8
(ø3.0×ø2.0×200(×4))
LEV
Strainer
#100
Capillary tube
O.D. 0.157×
I.D. 0.094×7-7/8
(ø4.0×ø2.4×200)
Refrigerant flow in cooling
Refrigerant flow in heating (MUZ)
21
Unit: Inch (mm)
Outdoor heat
exchanger
temperature
thermistor
RT68
Ambient
temperature
thermistor
RT65
Outdoor
heat
exchanger
Outdoor heat
exchanger
temperature
thermistor
RT68
R.V. coil (MUZ)
heating ON
cooling OFF