I was replacing few of my old manual thermostats with smart thermostats. While installing the new ones, I noticed that some of the gang boxes have 4 wires (2 black, 2 red). Some of them have 6 wires (3 black, 3 red).
All of my electric baseboard heaters are labelled as
208/240 V AC.
My question is,
- Are the baseboard heaters that have 4 wires in gangbox running on 120v?
- Are the baseboard heaters that have 6 wires in gangbox running on 240v?
- Or they all are running on 240V regardless the number of wires in gangbox?
I do not need to know the actual operating voltage precisely, just need to know which range it is falling in, 120v or 240v.
This is in Canada.