Refrigerant Cycle Diagram - Toshiba MMU-UP0051MH-E(TR) Service Manual

5. REFRIGERANT CYCLE DIAGRAM

Indoor unit
Liquid side Gas side
Strainer
Pulse Motor
Valve (PMV)
Sensor
(TC2)
Explanation of functional parts in indoor unit
Functional part name
Pulse Motor Valve
PMV
Temp. Sensor
TA
TC1
TC2
TCJ
Cooling
Heating
Capillary tube
Strainer
Sensor
(TCJ)
(Connector CN82 (6P): Blue)
1) Controls superheat in cooling operation
2) Controls subcool in heating operation
3) Recovers refrigerant oil in cooling operation
4) Recovers refrigerant oil in heating operation
(Connector CN104 (2P): Yellow)
1) Detects indoor suction temperature
(Connector CN100 (3P): Brown)
1) Controls PMV superheat in cooling operation
(Connector CN101 (2P): Black)
1) Controls PMV subcool in heating operation
(Connector CN102 (2P): Red)
1) Controls PMV superheat in cooling operation
Heat exchanger
at indoor side
Fan
Sensor
M
(TA)
Functional outline
– 38 –
Sensor
(TC1)
Fan motor