4, 5 WIRES |
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| WITH NO AUX OR EMERGENCY HEAT |
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** Use “O” or “B” |
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Factory | ||||
Terminals, Never Both |
G | B | O | Y | RC | RH | W2 | A | W1 | C |
G |
| O | Y | R |
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| C |
F |
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| Y1 | RC |
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| X |
15 |
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| 6 | V |
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| B* |
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| O |
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| P |
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| T |
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| I |
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| O |
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| SYSTEM COMMON |
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| N | |
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| A | ||
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| L |
FAN |
| REVERSING |
| SYSTEM 24V |
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| HEAT PUMP |
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| VALVE |
| TRANSFORMER |
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#7
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC