Trane Electric Heater

[PhilOlea]

How can something with only a few wires make you feel so incapable? I thought I had the compatibility check correctly; now, I don’t know. This unit controls my Man Cave and not the main house, so I went with the basic Nest, which arrived yesterday. What color wire goes into what hole on the Nest is making me feel stupid – Please Help! Thank You!

MY GUESS - Haven't tried it yet, waiting on smarter than me folks to say - Yea or Nay

White - The W2 wire can control different types of heat based on the type of system you have.
Old - W2 (With jumper to Y2)
New - *OB slot (could be used as W2, Y2, O, B etc), when you set up Nest Thermostat, you must declare that wire according to its function (example: W2)

Green - The G wire controls your fan.
Old - G
New - G

Orange - The W or W1 wire controls your heating system.
Old - W
New - W

Brown - The C wire is also known as the common wire. This wire connects your system to the common ground and can help provide power to your thermostat.
Old - C
New - C

Yellow - In most systems, the Y or Y1 wire controls your cooling system. If you have a heat pump, your Y or Y1 wire controls your compressor. Your compressor is responsible for heating and cooling your home.
Old - Y
New - Y

Red - The R wire is the power wire for your heating and cooling system.
Old - R (With jumper to Rc)
New - R

Started With

Clear Letter Guide

Trane Electric Heater

[Patrick_Caezza]

I'm not 100% sure if you have a heat pump or a conventional system, but it looks like you have a heat pump.

If you have a heat pump try this,

White - AUX to W (jumper to E not needed)

Green - G to G

Orange - O/B to */OB

Brown - C to C

Off White - Y to Y

Red - Rc to R (jumper to R not needed)

When asked in the app, select these wires

Other, G/G1, O/B, C, Y/Y1, and Rc

If you have a conventional system, try this.

White - W2 to * (jumper to E not needed)

Green - G to G

Orange - W to W

Brown - C to C

Off White - Y to Y

Red - Rc to R (jumper to R not needed)

When asked in the app, select these wires

W2, G/G1, W/W1, C, Y/Y1, and Rc

[Ryan_G]

Hi PhilOlea,

Thanks for reaching out here at the Google Nest Community.

I'd like to jump in here and check if you've seen Patrick_Caezza's response. We'd like to know if you've tried the suggested wiring configurations and let us know how it goes.

Thanks for your help, Patrick_Caezza.

Best regards,

Ryan

[PhilOlea · Accepted solution]

Well, I wasn't sure either.  I tried both methods and neither would get things going, so I went back and re-did the compatibility test and realized something... I chose the wrong unit.  I just thought the difference was what it could do for the end-user, I didn't realize what it could do for the unit itself.  Folks, if I could offer one piece of advice when purchasing your Nest, buy the nicer one as it will make your life easier to install plus it can do more for you.

[Ryan_G]

Hey PhilOlea,

Thanks for getting back to us.

It's great that you already figured it out after selecting the right thermostat for your home. 

Let us know how it goes after you try the wiring configurations again.

I hope to hear from you very soon.

Best regards,

Ryan

[Ryan_G]

Hey folks,

Thanks for visiting the Google Nest Community. 

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh.

If you have additional questions, feel free to submit another post and provide as many details as possible so that others can lend a hand. 

Hope this helps!

Kind regards,

Ryan