Ecobee SmartThermostat with voice control - Install your ecobee with a C wire

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TIP: To install accessories (humidifier, dehumidifier or ventilator) please
refer to the wiring diagrams at ecobee.com/wiring
Install your ecobee
with a C wire
If you have a C wire, it will power your ecobee. You won’t
need the Power Extender Kit (PEK) included in the box.