
Wiring Diagram — GPG1348-60M41 
Product Specifications
S R C
| BK | COMP | 
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| BK | 
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| 
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| CH OPTIONAL | 
 | PU | 
| CONNECTED AT L1, L2 | ||
| NOTE 3 | 
 | BK | 
| BR | 
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| 
 | CM | 
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| 
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 | BK | 
| 
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 | PU | 
| BL | 
 | GR | 
YL
| 
 | RD | 
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| BK | 
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 | PU | 
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| BK | 
 | T1 | T2 | 
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 | BL | 
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| 
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 | YL | |
| BL | 
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| 
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 | L1 | C L2 | 
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 | BK | 
| 
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 | BK | 
| 
 | BL BK BK | BK | PU PU | 
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| 
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 | BK | PU | 
| 
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| 
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 | NOTE 2 | 
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| 
 | 1 | 2 | 3 | 
 | 3 | 
| 
 | C | 208 | 240 | 
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| 
 | 4 | 
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| 
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 | TR | 
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| LS | 
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 | 2 1 | |
| RD | 24V | 
 | VMR | ||
| 
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RD
 GND
 GND
CH OPTIONAL
POWER SUPPLY 
SEE NOTE 6
| HPS | BL/PK | 
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| BL/PK | 
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| 
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| BL | PU | YL RD YL | 
| deathpower. ⚡ | 
| Multiple or | 
| C L G N | 
| EM | 
T1 T2 T3 T4 T5
| RD | BL BL BL RD RD | RD | WH | 
RD
| unit. personal injury, | 
| 
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 | WH | 
 | NOTE 4 | 
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| 
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 | YL | 
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 | MOUNT SCREW | 
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 | C22 | 
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 | COMPRESSOR | 
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 | REQUIRED | 
 | T1 | 
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| 
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 | YL | 
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 | P2 | 
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 | BREAKFOR | 
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| 
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 | ALS | 
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 | TWO | 
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 | 135 | 
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 | P3 | 
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 | STAGE | YL | |
| 
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 | 120 | 
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 | MAX AMP 3 FUSE | 
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| 
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 | PU | 
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 | RD | P1 | ECON | F1 | 
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| 
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 | RD | 
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 | GR | 
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 | RD | 
 | 10 7 4 1 | 
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| 
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 | PS | 
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 | BL | 
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 | 11 8 5 2 | 
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| 
 | PU | 
 | YL | 
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 | PU | 
 | YL | 
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 | 12 9 6 3 | 
 | YL | 
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| 
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 | YL | 
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 | YL | 
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 | WH | OR RD BL | 
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 | RD | 
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| 
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 | Y | 
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| BR | WH | 
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| RS | 
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 | GR | 
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 | FS | RD | 
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| 
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 | 3 | 6 | YL | SEE | 
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| 
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 | DI | 
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| BL | YL | 
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 | 2 | 5 | BL | NOTE 5 | 
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 | BL | 
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 | WH | 
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| 
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 | PLF | 1 | 4 | 
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 | L1 | RD | 
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| 
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 | PU | 
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| 
 | PU | 
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 | YL | 
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 | UNUSED | SEE | 
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| 
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 | BL | 
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 | L2 | 
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 | IIC | 
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| 
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 | NOTE 7 | 
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| 
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| 
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 | W. R. | (ALT.) HONEYWELL | 
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 | PU | RD WH | 
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 | HEAT | 
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| 
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 | GAS VALVE | GAS VALVE | 
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| 
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 | PU | 
 | MV | 
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 | YL | 
 | BL | 
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 | GR | BL BL | 
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 | COOL | 
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| 
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 | GV | 
 | GV | 
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| 
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 | BL | 
 | MV | 
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 | Y/Y2Y1 C | R W G | 
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| 
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| 
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 | BL | 
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 | TO THERMOSTAT | 
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| 
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 | RD | 
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| 
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 | VM | 
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 | FS | 
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 | RD | 
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 | YL WH | 
 | PU | 
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| 
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 | IGN | 
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 | OR | 
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| 
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| 
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 | RD | 
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 | RCCF | 
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 | PU | 
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 | RD | 
| 
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 | BL | 
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 | YL | 
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 | F | H | C | |
| 
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| 
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 | BR | 
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 | WH | 
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 | BR | 
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 | YL | 
| 
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| L1 | 
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 | SUPPLY VOLTAGE | 
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 | L2 | 
 | COMPONENT LEGEND | 
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 | FACTORY WIRING | ||||||||||
| 
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| 
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 | ALS | 
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 | AUXILLARY LIMIT SWITCH | 
 | LINE VOLTAGE | ||||||||
| 
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 | CH | NOTE 3 | 
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| 
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 | COMP | 
 | COMPRESSOR | 
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 | LOW VOLTAGE | |||||||
| 
 | C | T1 | 
 | R | 
 | T2 | C | 
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 | 2 | 
 | CM | 
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 | CONDENSER MOTOR | 
 | OPTIONAL HIGH VOLTAGE | |||||
| 1 | 
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 | C | 
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 | CONTACTOR | 
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| 
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 | C COMP S | 
 | H RCCF C | 
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 | CH | 
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 | CRANKCASE HEATER | 
 | FIELD WIRING | |||||||
| 
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 | EM | 
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 | EVAPORATOR MOTOR | 
 | |||||
| 
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 | F | CM | 
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 | F | 
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 | FUSE | 
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 | HIGH VOLTAGE | ||
| 
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 | FS | 
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 | FLAME SENSOR | 
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 | LOW VOLTAGE | ||||
| 
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 | GND | 
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 | EQUIPMENT GROUND | 
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| 
 | L | N | 
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 | GV | 
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 | GAS VALVE | 
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 | WIRE CODE | |||
| 
 | EM | 
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 | VMR | 
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 | IIC | 
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 | INTEGRATED IGNITION CONTROL | 
 | BK | BLACK | |||||
| 
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 | IGN | 
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 | IGNITOR | 
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| 
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 | BL | BLUE | ||||
| 
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 | NOTE 2 | 
 | 4 | 2 | 
 | VM | 
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 | LS | 
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 | LIMIT SWITCH | 
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 | BR | BROWN | |||
| 
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 | PLF | 
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 | FEMALE PLUG/CONNECTOR | 
 | GR | GREEN | ||||||
| 
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 | 3 | 
 | 2 | 1 | 
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 | PS | 
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 | PRESSURE SWITCH | 
 | OR | ORANGE | |||
| 
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 | TR | 
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 | RCCF | 
 | RUN CAPACITOR FOR COMPRESSOR/FAN | PK | PINK | ||||||
| L1 NOTE 7 | 
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 | NOTE 7 | 
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 | RS | 
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 | ROLLOUT SWITCH | 
 | PU | PURPLE | |||||||
| 
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 | IGN | 
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 | IIC | L2 | 
 | TR | 
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 | TRANSFORMER | 
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 | RD | RED | |||||||
| 
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 | FS | 
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 | FS | T5 | 
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 | VM | 
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 | VENT MOTOR | 
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 | WH | WHITE | |||||
| F | 
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 | YL | YELLOW | ||||||||
| 
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 | VMR | 
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 | VENT MOTOR RELAY | 
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| 
 | C | 
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 | T4 EM | C | 
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 | BL/PK BLUE/PINK | |||||||||
| 
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 | HPS | 
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 | HIGH PRESSURE SWITCH | 
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| 
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 | H | 
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 | T3 | 
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| 
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 | D1 | 
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 | 1 | 3 | T2 | T1 | 
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 | NOTES | 
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| 4 | 
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| 
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 | LS | VMR | 
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 | 1. REPLACEMENT WIRE MUST BE THE SAME SIZE AND TYPE OF | ||||||||||||||
| 5 | 
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 | INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY). | ||||||||||||
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 | 2. FOR 208 VOLT TRANSFORMER OPERATION MOVE BLACK WIRE | |||||||||||
| 
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 | ALS | RS | 
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| 
 | IIC | 3 | 
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 | GV | 
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 | FROM TERMINAL 3 TO TERMINAL 2 ON TRANSFORMER. | 
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| 
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| 
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 | 3. CRANKCASE HEATER NOT SUPPLIED ON ALL UNITS. | 
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| 
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 | 6 | 
 | PS | 
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 | 4. FOR DIFFERENT THAN FACTORY SPEED TAP. CHANGE COOLING | |||||||||||
| 
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 | 8 | 
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 | SPEED AT MOTOR T4 AND T5 TERMINALS. CHANGE HEATING | |||||||||||
| 
 | ECON | 
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| 
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 | SPEED AT MOTOR T1, T2 AND T3 TERMINALS. | 
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| 9 | 7 | 10 | 12 | 
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 | COOLING SPEED (YELLOW WIRE) | HEATING SPEED (WHITE WIRE) | ||||||||
| 
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 | C | 
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| 
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 | 11 | 
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 | HPS | 
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 | T4 - LOW SPEED | 
 | T1 - LOW SPEED | ||||||||
| 
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 | T5 - HIGH SPEED | 
 | T2 - MED. SPEED | ||||||||
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 | NOTE | 
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 | T3 - HIGH SPEED | |||
| 
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 | 5 | 
 | PLF | 6 | 5 | 4 | 
 | 5. ACCESSORY ECONOMIZER PLUG ADJACENT TO BLOWER HOUSING | ||||||||||
| R | G | W | Y1 | 
 | Y/Y2 | C | 
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 | 3 | 2 | 1 | 
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 | IN RETURN AIR COMPARMENT. | 
 | 
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| 
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 | 6. USE COOPER CONDUCTORS ONLY. | 
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| TO THERMOSTAT | 
 | 
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 | USE NEC CLASS 2 WIRE. | 
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| 
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| 
 | INSTALLER/SERVICEMAN | 
 | 
 | THERMOSTAT FIELD WIRING | 
 | |
| THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TO | 
 | 
 | ||||
| 
 | 
 | 
 | 
 | |||
| TROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS: | 
 | 
 | 
 | 
 | ||
| STATUS LIGHT | EQUIP. STATUS | CHECK | 
 | 
 | 
 | 
 | 
| ON | NORMAL OPERATION | - | 
 | 
 | 
 | 
 | 
| OFF | NO POWER OR | CHECK INPUT POWER | NO ECONOMIZER | 
 | 2 STAGE COOLING WITH ECONOMIZER | |
| INTERNAL CONTROL | CHECK FUSE ON CONTROL | 
 | 
 | 
 | 
 | |
| 
 | FAULT | REPLACE CONTROL | WH | W | WH | W | 
| 1 BLINK | IGNITION FAILURE | GAS FLOW | GR | G | GR | G | 
| OR | GAS PRESSURE | |||||
| 
 | OPEN ROLLOUT | GAS VALVE | RD | R | RD | R | 
| 
 | SWITCH | FLAME SENSOR | ||||
| 
 | OR | FLAME ROLLOUT | YL | Y | PU | Y1 | 
| 
 | OPEN AUX. LIMIT | BAD SWITCH | ||||
| 
 | SWITCH | AUX. LIMIT OPEN | BL | C | YL | Y2 | 
| 2 BLINKS | PRESSURE SWITCH | CHECK | 
 | 
 | BL | C | 
| OPEN | PRESSURE SWITCH | 
 | 
 | |||
| 
 | 
 | 
 | ||||
| 3 BLINKS | PRESSURE SWITCH CLOSED | CHECK | 
 | 
 | 
 | 
 | 
| WITHOUT INDUCER ON | PRESSURE SWITCH | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | ||
| 4 BLINKS | OPEN LIMIT SWITCH | MAIN LIMIT OPEN | 
 | 
 | 
 | 
 | 
| BAD SWITCH | 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | 
 | |
| 5 BLINKS | FALSE FLAME SENSED | STICKING GAS VALVE | 
 | 
 | 
 | 
 | 
| 6 BLINKS | COMPRESSOR | 3 MIN. COMP. | 
 | 
 | 0140G01234 REV A | |
| 
 | OUTPUT DELAY | 
 | 
 | |||
| 
 | all power before servicing or installing this | Failure to do so may cause property damage, | 
| 
 | Disconnect | be present. | 
| 
 | High Voltage: | sources may | 
| 
 | 
 | |
| 
 | Warning | |
| 
 | ⚠ | |
| Always or the wiring. | ||
| Wiring is subject to change. refer to the wiring diagram unit for the most  | ||
| www.goodmanmfg.com | 23 | 
