Heat Pump Systems
Optional
Jumper
RC/R | C | Y1 | Y2 | W2 | E | O | B | G | L |
24VAC Supply
Compressor | Compressor | Auxiliary | Emergency | Reversing Valve | Reversing Valve | Fan | System |
Stage 1 | Stage 2 | Heat | Heat | Cool | Heat | Control | Monitor |
24VAC Common (if available)
Number of wires connected depends on the heat pump system requirement. Not all terminals need to be connected.
• Add jumper between W2 and E terminals on systems without an E wire.
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