“Is this compatible with a 2 wire (red/white) system or is a common (c) wire needed?”

1-4 of 4 Answers

• A C wire is needed to power the thermostat.

  Answered by Mark 6 years ago

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• The kit included a "work around" if you did not have the "c' wire. But I had one, so I can't speak to if the work around would work on your system.

  Answered by mevans 6 years ago

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• It is compatible with two wire with C wire optional.

  Answered by PastorTracy 6 years ago

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• A common wire is needed for this thermostat

  Answered by kary 6 years ago

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