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Dual zone wiring

Urrjay
Community Member

I have 2 thermostats that I ignorantly didn't take picture of before replacing with the Nest. Now my system is toes up. 

 

There was a thermostat downstairs that controlled downstairs. And one upstairs that controlled up stairs. 

 

After installing, both nest said the RC had no power. I threw it on a multimeter and there was indeed power. I strongly believe both upstairs and downstairs are wired differently.

 

Can someone point me in the right direction on how to get this fixed? 

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