Emerson Sensi 1F87U-42WF - Power On and Finalize Installation; Wi-Fi Connection and Device Registration

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Wiring – heat pumps
single stage or multi-stage systems
Special note
*Common connection required on heat pump systems
Quick tip: Thermostat wiring does not follow a standardized color code. Take a picture
with your smart phone and label thermostat wires before removing old thermostat
from the wall.