Figure 5 | Proper Connection of Twinning Leads for ST 9160 |
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Thermostat Wiring For |
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Single Stage Heating |
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| ELECTRONIC |
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| ELECTRONIC |
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| FAN CONTROL |
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| FAN CONTROL |
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| FURNACE #1 |
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| FURNACE #2 |
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| WALL |
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| Connect H to H |
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| THERMOSTAT |
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| Connect C to C |
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G | W R |
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| TWIN C H |
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| TWIN | C H |
| 5 | R | C | W Y G | 5 | R | C | W Y G |
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| 1 | 3 |
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| ISOLATION |
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| RELAY |
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Thermostat Wiring For |
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Two Stage Heating |
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| ELECTRONIC |
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| ELECTRONIC |
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| FAN CONTROL |
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| FAN CONTROL |
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| FURNACE #1 |
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| FURNACE #2 |
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WALL |
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| Connect H to H |
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THERMOSTAT |
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| Connect C to C |
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G W2 W1 R |
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| TWIN C H |
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| TWIN | C H |
| 5 | R | C |
| W Y G | 5 | R | C | W Y | G |
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| ISOLATION |
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| RELAY |
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| 4 |
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| 2 |
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| 1 | 3 |
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| 7 |
