“Is this thermostat compatible with a two zone system? Can I have one T9 replace my existing Honeywell thermostats or do I need two separate T9 thermostats? Currently I have R, W, G, C. wires connected.”

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• Two zones require 2 T9s. If you can combine into one zone, just use one T9 with additional sensor. The app will decide which room gets to control.

  Answered by 2wire 3 years ago

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