Indoor Unit
CAUTION
MMU-AP007YH, AP012YH type air conditioners have no TC2 sensor.
Explanation of functional parts in indoor unit
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Pulse Motor Valve
PMV
(Connector CN082 (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
Temp. Sensor
1.TA
(Connector CN104 (2P): Yellow)
1) Detects indoor suction temperature
2.TC1
(Connector CN100 (3P): Brown)
1) Controls PMV superheat in cooling operation
3.TC2
(Connector CN101 (2P): Black)
1) Controls PMV
subcool
in heating operation
4.TCJ
(Connector CN102 (2P): Red)
1)
Controls PMV superheat in cooling operation
2)
[MMU-AP007YH to AP012YH only] Controls PMV
subcool
in heating operation
Sensor
(TC2)
M
Fan
Fan motor
Sensor
(TCJ)
Sensor
(TC1)
Strainer
Liquid
side
Gas side
Capillary tube
Sensor
(TA)
Pulse Motor
Valve
(PMV)
Heat exchanger
at indoor side
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