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| HEAT PUMP SYSTEMS | |||
if your existing | label the wire | if your existing | |||
thermostat is marked: | with this sticker: | thermostat is marked: | |||
Y1 / Y2 |
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| C |
Compressor Stage 1 or 2 | Y1 | Y2 |
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| Y1 | Y2 |
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label the wire | ||
with this sticker: | ||
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| C |
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24 VAC Common |
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| C |
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W2
Auxilliary Heat
W2
W2
O
Cool Mode Powered | O |
Reverse Valve |
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| O |
G
Fan
R / RC
24 VAC Power Supply
G
G
R/RC
R/RC
E
B
Emergency Heat | E |
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| E |
Heat Mode Powered |
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B | |
Reverse Valve |
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| B |
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L | L |
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System Monitor
L
See pages 74 for a complete wiring diagram.
| 11 |