Typical 2500 Series Wiring Diagram
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| ROOM |
| ID. COIL |
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YL | YL | OR |
| OR |
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1 | 2 | 3 | 4 | 5 | 6 | |
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| CN1 |
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CN5 |
| MAIN |
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| BOARD |
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| UNIT |
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CN3
12
WH WH
TRANSFORMER
COLOR
BK : BLACK
BL : BLUE
BR : BROWN
GR : GREEN
GY : GRAY
OR : ORANGE
RD : RED
WH : WHITE
YL : YELLOW
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| HEATER |
| PROTECTOR | FUSE |
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| BL |
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| BL |
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| GY |
| HEATER UNIT |
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| WH |
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| GR |
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CN2 |
| CN104 |
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| BK |
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| L.O.P. |
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| (RIBGY SIDE) |
| NR101 | RY101 |
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| OD. FAN MOTOR |
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| RY102 |
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| CN8 |
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| Varistor | RY103CN101CN102 | 1 | RD |
| FM | BL |
| BK |
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| 3 |
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| WH |
| GY |
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| C |
| COMPRESSOR | |||
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| CN103 | 5 |
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| WH |
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| BK |
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| RUNNING |
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| YL |
| DRIVE |
| 5 | BK |
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| RUNNING |
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| |
| YL | 1 | BOARD |
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| ID. FAN MOTOR | CAPACITOR |
| S | CM |
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| 2 | UNIT |
| 1 | RD |
| FM | YL |
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| R |
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| 3 |
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| WH |
| BR |
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| BK | 5 |
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| CAPACITOR |
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| 7 |
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| RD |
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| RD |
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| BK |
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| BK |
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| RUNNING |
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| CAPACITOR |
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Typical 2500 Series Schematic Diagram
R
RUNNING
COMP. CAPACITOR
MOTOR
O. L. P. C
S
TRANSFORMER | (TR1) | CN103 |
|
| (HEATER UNIT) | FAN MOTOR |
| FAN MOTOR |
| ||
| CAPACITOR |
| CAPACITOR |
| |||
HEATER |
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| ||
PROTECTOR | FUSE | OUTDOOR |
| INDOOR |
| ||
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| FAN |
| FAN |
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| MOTOR |
| MOTOR |
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| CN102 | RY107 | CN101 | RY105 |
RY102 |
| RY101 | RY103 | RY106 | RY104 | ||
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FUSE |
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(FU101) |
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Varistor |
| Capacitor | CN8 |
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| |
(NR101) |
| (C101. C102) |
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| |
DRIVE BOARD UNIT | REGULATOR |
|
REMOTE T' STAT
CDC
TRANSFER FAN
MOTION SENSOR DOOR SWITCH
ROOM 
ID. COIL 
CN1CN5
CN3 |
|
SELECT SW | DECODER |
HEAT H |
|
HEAT A |
|
OFF |
|
FAN L |
|
FAN H |
|
COOL A | CONTROL |
COOL H | CIRCUIT |
| |
THERMO CONTROL | |
(for setting) | DIP SW |
INTERFACE |
|
MAIN BOARD UNIT | |
CN2
CN104
RY107
RY106
RY105
RY104
RY103
RY102
RY101
48