Hi, I'm trying to wire my 2 nest thermostats and having trouble where to get the common c wire from. Currently i have my 2 zones wired like this diagram
below. Ive read over some other posts with my system but only saw it with the thermostats wired to the TT. The red wires coming off my zone valves are wired to TT instead.
Yes.... the red wires are tied in parallel and are used to start the boiler via the TT terminals.
Those are left as they are and will not be in this discussion.
You are only showing two wires to the thermostat.
Do you have three wires..... what are the colors ?
I asked you the colors so that I could use them in the diagram.
I chose red, white and green.
There is NO polarity at the transformer.
There is NO polarity at the yellow ZV wires.
Hi everyone, thanks to the previous comments, I think I'm a lot closer to getting this going. I have no c-wire so I picked up the Power Connector as per Google's reco.
The diagram below shows the current 2 zone setup.
Would be amazing if I can get some help with how the connector should tap into to the various Google Power Connector components (W R, C R W), with zone 1. Thanks abunch!
[img]https://cimg9.ibsrv.net/gimg/www.doityourselft.com-vbulletin/1238x698/6b2bcfac_58bf_4d49_b45d_d473017e717b_34d0f6575fdbad95476d0d42f5b859cea6f60705.png[/img]
Hey guys. I came across this thread cause I'm trying to connect this Google power connector. I tried like the diagram on here but it still reads no power. Does it make a difference if it's multi zone?
11-25-22, 08:44 PM
