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You don't always need a C wire with Ecobee  

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(@goat)
Active Member
Joined: 8 months ago
Posts: 5
June 18, 2019 11:43 EDT AM  

On MGG #766 they were talking about needing power from your furnace to run the Ecobee Thermostat. The Ecobee comes with the PEK, which can be used in installs that don't have a C wire.

If you need to run two stage heat, AC and Fan you'll need 6 wires in a traditional Gas, forced air set up. The Ecobee will let you run that same equipment with 5 wires using the included PEK.

This topic was modified 4 weeks ago 2 times by Steven Goetz

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