G24-200 FIELD WIRING DIAGRAM
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| P UNITS − 208/230V 1PH 60 HZ |
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| Y UNITS − 208/230V 3PH 60HZ |
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| FUSED OR CIRCUIT BREAKER | ||||
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| DISCONNECT (Furnished by | ||||
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COMBUSTION | PRESSURE | COMBUSTION | PRESSURE | L1 | L2 | L3 | GND | ||||
AIR BLOWER | LIMIT | AIR BLOWER | LIMIT | ||||||||
SWITCH | SWITCH |
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| GAS | IGNITION | GAS | IGNITION |
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| CONTROL |
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| VALVE | CONTROL | VALVE |
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| BOARD |
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| BOARD |
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FLAME ROLLOUT | FLAME ROLLOUT |
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| SWITCH |
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| SWITCH |
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| BLOWER DECK |
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| RED | L1 |
| 1 | 2 3 4 |
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| RED |
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| L1 |
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| RED |
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| J84 |
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| L2 |
| DOOR |
| DOOR |
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| RED |
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| PLUG |
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| L2 |
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| RED |
| INTERLOCK |
| INTERLOCK |
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| L3 |
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| RED |
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| L3 |
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| MAKE−UP BOX | Three phase shown. L2 not used |
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| (Alternate make−up | |||||
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| in single phase applications |
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| MAKE−UP BOX | ||||||
| (Alternate make−up |
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| box left side) | ||||||
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| box right side) |
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| R3 | THERMOSTAT |
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| See Note 2 | |
| TERMINAL STRIP |
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| REMOVE JUMPER IN |
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| TB34 |
| C |
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| SEE NOTE 1 |
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| 1 |
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| W1 |
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| W1 |
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| 5 | 1 |
| GROUND |
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| G |
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RELAY |
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| LUG |
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| G | |
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K109 | 7 | 2 |
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| W2 |
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| K3 CONTACTOR |
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| BLACK |
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| YELLOW |
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| Y1 |
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| Y1 | ||
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| YELLOW |
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| RED |
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| L1 | L2 | L3 |
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RELAY |
| BLUE |
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7 |
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K105 |
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| BLUE |
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| R |
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| T1 TRANSFORMER |
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| R | |||
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| 24v: blue − yellow |
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| T1 | T2 T3 |
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| 208v: red − black |
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| ECONOMIZER | |
| 240v: orange − black |
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| ECON |
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| NOTES : | |
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Three phase shown. This lead not used in single phase applications
TB1
TERMINAL STRIP
CONTROL BOX
BLOWER MOTOR
1 − Relay K109 can be used for an accessory rated at the same voltage as power sup- ply.
2 − Field installed and supplied re- sistor (R3), is required in
(Use a 150 ohm, 10 watt resistor − Lennox part number P−8−6256.)
FACTORY INSTALLED
LINE VOLTAGE FIELD INSTALLED 24 VOLTS FIELD INSTALLED
FIGURE 16
Page 29
