TYPICAL 24V, 4 WIRE, HEAT PUMP SYSTEMS |
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WITH 1 STAGE HEAT AND 1 STAGE COOL | ** Use either “O” or “B” | |
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Factory Supplied | Customer Supplied | Terminal, Never Both |
Jumper Wire Installed | Jumper Wire Installed |
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A | RH | W2 | RC | G | Y | W1 | O | B | C |
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| RC | G | Y |
| O | B | C |
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| R | F | C* |
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| L |
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| HEAT |
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| FAN |
| PUMP |
| OVER |
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| XFMR | |||
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| UNIT |
| VALVE |
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#6