RTH6350/RTH6450/RET93E0/RET95E0 Series
23 69-2696ES—03
SETUP WIRING ASSISTANCE TROUBLESHOOTING
Wiring—Heat Pump
Connect wires: Heat Pump
1. Match each labeled wire with same letter on new
thermostat.
2. Use a screwdriver to loosen screws, insert wires into
hole under screw, then tighten screws until wire is
secure.
3. If E and Aux do not each have a wire connected, use
a small piece of wire to connect them to each other.
4. Push any excess wire back into the wall opening.
Labels don’t match? See page 24.
Wiring complete, return to Step 8.
HEAT PUMP
MCR31276A
Aux
O/BLG
Y
G
O
YR
R
Rc
Aux
E
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