Identify Jumper Wire - Emerson White-Rodgers P210 Install Manual

3.4 Identify jumper wire

On your old thermostat, if...
Terminal RC and RH are connected
with a jumper wire
There's only one R wire (RC, RH, R or R5)
coming out of the wall
Terminal RC and RH (or 5 or R5) are NOT
connected by a jumper wire
For terminal Y and W:
If you have a heat pump with reversing valve, connect Y and W with a jumper wire on your new thermostat.
If you need help with labeling and wiring, please contact Customer Support at 877.654.9394 or email
wr.techsupport@emerson.com — we're here to help!
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Then, on your new thermostat...
Leave the jumper wire in its place
Leave the jumper wire in its place
Remove the jumper wire between RC and RH