Install Instructions
Alternate Wiring (Conventional Systems)
If labels do not match letters on the thermostat, check the chart below and connect to terminal as shown
here (See notes, below).
1
Remove metal jumber if wires will be connected to both RH/R and RC terminals.
2
If a 24 volt common wire is present (typically labeled C or X) connect it to the C terminal. The C terminal is
not used if a 24 volt common wire is not present.
3
The O and B terminals are for a reversing valve (single stage heat pump application ONLY). These
terminals are not used on a system that is not a heat pump.
4
Place a jumper wire between the Y and W terminals if you have a single stage heat pump system ONLY.
WIRING
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