Google Nest Community

8475nester · 12-04-2023

Hello,I installed the nest thermostat earlier this summer and here is the original thread that shows the current wiring.https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-Thermostat-for-split-system/td-p/429101The HVAC is Trane XR heat pump...

8475nester · 06-05-2023

Hello,I got a new Nest Thermostat to replace an existing Trane (TCONT802AS32DAA) thermostat. My HVAC is Trane XR heat pump system which has wiring as shown below. I have both O and B wire and when I tried the nest compatibility test, it said my HVAC ...

8475nester · 12-12-2023

@CoolingWizard - I factory reset the thermostat and redid the wiring. Here is what the setup looks like. Heating is working and fan does stop when it's turned off. I haven't tried cooking yet and confirming if this looks correct?

8475nester · 12-07-2023

@CoolingWizard - Indoor air handler is Trane XV80 (Model # 2TXCC060BC3HCAA) - B could be R as some alphabets are scratched up.Outdoor is XR13 (Model # 2TTR3060A1000AA)Should I reset the nest to factory settings and maybe it will detect the heat?

8475nester · 12-06-2023

I made the change and remove the White wire from 0/B to W and now I can't see the heat option on the thermostat or in my app. The W wire is not detected.

8475nester · 12-06-2023

@CoolingWizard - I have a nest 1st gen thermostat and don't have W1 wire. Do you mean White Wire connect to W and your sentence above " You should it have any wire connected to the O/B of the Nest Backplate. " - do you mean, I shouldn't have any wire...

8475nester · 12-05-2023

@CoolingWizard - Any thoughts on this issue since you helped me the wiring last time?

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Thermostat off and heat is still on

Nest Thermostat for split system

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