Precautions for refrigerant ..........................................................................................................................

Air conditioner component ..........................................................................................................................

Configuration and function of refrigeration cycle.........................................................................................

Outline of refrigeration cycle .......................................................................................................................

Air conditioner unit ......................................................................................................................................

Air conditioner controller ............................................................................................................................. 15

Compressor ................................................................................................................................................ 16

Condenser and Modulator .......................................................................................................................... 17

Sensor......................................................................................................................................................... 18

Procedure for testing and troubleshooting .................................................................................................. 20

Circuit diagram and arrangement of connector pins ................................................................................... 22

System diagram .......................................................................................................................................... 24

Parts and connectors layout ....................................................................................................................... 26

Testing air leakage (duct)............................................................................................................................ 29

Testing with self-diagnosis function............................................................................................................. 31

Testing vent (mode) changeover................................................................................................................. 33

Testing FRESH/RECIRC air changeover.................................................................................................... 34

Testing sunlight sensor ............................................................................................................................... 35

Testing (dual) pressure switch for refrigerant.............................................................................................. 36

Testing relays .............................................................................................................................................. 37

PC200, 200LC, 220, 220LC-8M0

Serial number

400001 and up

100001 and up

SEN06151-00

80-100

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