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- Posts: 5
- Joined: Fri Dec 25, 2015 4:40 pm
I have a question that another member had. If the ncm300 with heatpump has one tstat with the o connected on a three zone system does the other two stats need an o wire connected? I don’t want visitors running heat while I am in cooling mode. Also I believe I read that the g doesn’t need to be connected as long as you don’t want the fan on option, is this correct?Thanks