1

I want to install an ecobee4. I want to install it with the C wire so I do not need to use their kit. It seems to me that I should be able to just move the wires around on my hvac.

Here is a diagram of my thermostat and HVAC. enter image description here
On the thermostat, the blue wire is just hanging out there.

Here is a page from the ecobee4 manual:

enter image description here

I want to make the left picture, Guide 1, work. Can I just move the wires around on my HVAC accordingly? Basically take the Blue off of the G post and put it on C.

Also, there is skinny red and white wire on the HVAC, I do not know where they go. Can I just leave them on the posts as-is or are they thermostat specific?

Here is one more pic just bc

enter image description here

More pictures.

enter image description here

enter image description here

Improve this question
2
  • Do you have any other devices on this system? A/C or humidifier...etc. You need to figure out what the wires go to first. Do you have a wire diagram for the furnace?
    – Jeff Cates
    Commented Mar 23, 2018 at 17:28
  • I will get a wire diagram this evening. And we have AC on this system. Nothing else.
    – jqning
    Commented Mar 23, 2018 at 17:35

1 Answer 1

Reset to default
1

Go ahead

You can take the blue wire from G and move it over to C on the furnace -- there is room for two wires on the typical furnace-board terminal. The skinny red and white cable carries the Y and C wires to the compressor contactor on your AC's outdoor unit, by the way, and simply stays put when you do this.

Improve this answer
1
  • That appears to have worked. I can’t test the AC because my house is too cold, but come summer I might revive this question.
    – jqning
    Commented Mar 26, 2018 at 19:59

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.