Refrigerant System Diagram - Mitsubishi Electric Mr.Slim MUZ-A09NA Service Manual

6

REFRIGERANT SYSTEM DIAGRAM

MUZ-A09NA MUZ-A09NA-
MUY-A15NA MUY-A17NA
Refrigerant pipe ø3/8 (MUZ-A09/12)
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4
(with heat insulator)
MUZ-A09NA- MUZ-A09NA-
1
Refrigerant pipe ø3/8
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø1/4
(with heat insulator)
MUZ-A12NA MUZ-A15NA MUZ-A17NA
U1
ø1/2 (MUZ-A15/17,MUY-A15/17)
4-way valve
Muffler
Stop valve
(with service port)
Service
port
Muffler
Stop valve
(with strainer)
U2
4-way valve
Muffler
Stop valve
(with service port)
Stop valve
(with strainer)
Capillary tube
O.D. 0.118 × I.D. 0.079
× 9-7/16
(ø3.0 × ø2.0 × 240)
Muffler
Discharge
temperature
Service
thermistor port
RT62
Compressor
Defrost
thermistor
RT61
Capillary tube
O.D. 0.118 × I.D. 0.071
× 23-5/8
(ø3.0 × ø1.8 × 600)
Expansion
valve
Refrigerant flow in cooling
Refrigerant flow in heating (MUZ)
Muffler
Discharge
temperature
thermistor
RT62
Compressor
Defrost
thermistor
RT61
Expansion
valve
Muffler
Refrigerant flow in cooling
Refrigerant flow in heating
20
Outdoor
heat
exchanger
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Outdoor
heat
exchanger
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Unit: inch