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ayoungtech
Community Member
since ‎12-25-2024
‎01-01-2025

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Two furnace, two a/c units, two thermostats; Control with one 4th gen Nest?

12-25-2024
Happy holidays everyone! Here’s my setup:Thermostat #1 controls the basement furnace and A/C unit.Thermostat #2 controls the upstairs furnace and A/C unit.The upstairs thermostat has these wires: Y2(blue), G(green), W(white), C(brown), Y(yellow), R(r...