Help With Nest E Thermostat Wiring

[chriswoolie]

I have an electric heat pump and trying to figure out the wiring for Nest E thermostat.

My current thermostat has 7 wires

Red

Black

White

Yellow 

Green 

Orange

Blue.

Nest E thermostat only has 6 connectors.  Will this thermostat work?

[Patrick_Caezza]

@chriswoolie 

Post a picture of the current thermostat's wiring here please

[chriswoolie]

@Patrick_Caezza 

 

[Patrick_Caezza]

@chriswoolie 

It appears that you have a Trane system with emergency heat. Correct?

Typically, you would want to use one of the Learning Thermostats, as they can handle all the features your current thermostat supports.

If you really want to use the Nest Thermostat E, you can wire it in this way, but you will lose the emergency heat option.

Red - R to R

Black - W2/X2 - Emergency Heat tape off

White - W1 to W1 ( set as AUX Heat)

Yellow - Y to Y1

Green - G to G

Orange - O to */OB

Blue - B to C

[chriswoolie]

Thats exactly what I have.  Any way I returned the Nest E and purchased a 3rd gen Nest learning thermostat.  Just waiting for delivery.  Hopefully connecting will be easier?  Thanks