topic Re: Correct Nest wiring to 2 stage heat pump w/cooling in Nest Thermostats

Correct Nest wiring to 2 stage heat pump w/cooling

mvpmich — Sun, 26 Jan 2025 13:37:07 GMT

I have a 2 stage heating and 1 stage cooking heat pump that runs a long time in the heat stage and doesn’t seem to be efficient as it fluctuates between warm and cool air. Currently nest wiring is yellow-Y1, green-G, orange-OB, red-RC, white-W2, light blue-C. I did not use jumper in the nest.

My previous thermostat wiring had a wire for humidification which I eliminated and a jumper between 24RC-HC which I didn’t use.e

Is my nest wiring correct? Unfortunately I am not permitted to post pictures which would have been helpful.

Re: Correct Nest wiring to 2 stage heat pump w/cooling

NestUser2025 — Sun, 26 Jan 2025 14:29:38 GMT

Will get you close, as I have a similar system. Pretend you have single stage heat and dual fuel ( pro guide setup)

at your furnace jumper w1/w2 together

now furnace to 3rd generation nest

w1 > nest w2 aux heat (yeah, not w1)

e if you have it to > nest * configured as emergency hest

at thermostat - configure using pro set up and use dual fuel

this will also give you advanced heat pump features of economy, balance or comfort. Personally I’m also trying to do two stages of heat as the mfg had in mind. Lennox single stage Heatpump and air handler furnace with two stage heat.

Re: Correct Nest wiring to 2 stage heat pump w/cooling

Jeremyg — Thu, 30 Jan 2025 06:19:48 GMT

Hi @mvpmich!

Thank you for reaching out to the community, and thank you for your willingness to help @NestUser2025. I am glad to see that you want to know the wiring of your Nest thermostat. It is my pleasure to help you to make the best decision.
To get a better understanding of the situation, please help me out by answering the following questions:

What Nest thermostat model do you have? For your reference, you can check out this article on how to tell which Nest thermostat you have.
What is the make and model of your HVAC system?

I'll be waiting for your response; any additional details you can provide will be helpful.

Regards,

Jeremy

Re: Correct Nest wiring to 2 stage heat pump w/cooling

mvpmich — Thu, 30 Jan 2025 11:33:40 GMT

3. Thanks in advance