INDOOR PCB CIRCUIT DIAGRAM
Model : MW18Y3F
CONTROL UNIT
| N |
| L |
OUTDOOR UNIT | SERIAL |
| EARTH |
TERMINAL BOARD
N |
L |
3 |
EARTH
TERMINAL 
W3
RED
W2 W1
BLACK WHITE
| CN7 |
|
|
| CN11 |
| |
TERMINAL FUSE | 1 |
| |
| 1 |
| |
103 | 3 | 2 |
CN12 | EXTERNAL COMMUNICATION CONNECTOR |
1 |
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| CN10 | 3 |
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| |
| RED | 1 |
| |
REMOTE CONTROL UNIT | WHITE | 2 |
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BLACK | 3 |
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| 4 |
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| 5 |
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| CONTROLLER PCB ASSY | CN3 |
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| 1 | |
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| CONTROLLER PCB ASSY | |
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| 2 | |
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| 3 | |
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| 4 |
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| 5 |
6
7
CN8
| CN201 |
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| RED | 1 |
| |
| WHITE | 2 |
| |
| WHITE | 3 |
| |
| WHITE | 4 | INDICATOR PCB ASSY | |
| WHITE | 5 | ||
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| WHITE | 6 | ||
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| WHITE | 7 |
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TEST
CN6 |
|
PIPE TEMPERATURE THERMISTOR |
1 | BLACK | |
2 | BLACK |
CN5 | ROOM TEMPERATURE THERMISTOR |
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| 1 | BLACK |
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| CN1 | 2 | BLACK |
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| S5 | CN2 |
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| RED | 6 |
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| 5 |
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| 1 | RED |
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| BLACK | 4 |
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FAN MOTOR | F. M. | 2 | ORANGE | M |
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WHITE | 3 |
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3 | YELLOW | LOUVER | |||||||||
| YELLOW | 2 | |||||||||
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| 4 | PINK |
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| BLUE | 1 |
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| 5 | BLUE |
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2006.02.20 | 5 |
