So, I treat my system as 1 when it comes to the Virtual Switch “HVAC”. This switch will turn both units on/off.
If I want individual control, I simply say Upstairs or Downstairs.
Alexa, set the upstairs temperature to 74.
Alexa, turn off the air downstairs.
To be honest though, we hardly ever give HVAC commands anymore because everything is automated in a way that suits our family very well.
For example, the Mrs. does not like it too cool so when she is home, the air automatically sets itself 2 degrees higher than when she’s away.
All in all, Ecobee Therms are great! However, when you pair them with SmartThings, they become even more awesome!
We are able to maintain very comfortable temperatures and still have noticeable saving. Here’s how I compare to my neighbors: