Wiring 2 nest thermostasts to burnham es2
#1
Member
Thread Starter
Join Date: Nov 2022
Posts: 3
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Wiring 2 nest thermostasts to burnham es2
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.
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.
#2
Welcome to the forums.
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 ?
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 ?
#4
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.
I chose red, white and green.
There is NO polarity at the transformer.
There is NO polarity at the yellow ZV wires.