11-21-2022 07:15 PM
I just bought a thermostat. It has connections for 6 wires. My heat pump has seven. I have a Y2 wire, my new thermostat does not. Will this one work?
11-21-2022 08:16 PM
Well, this depends, if the Y2 wire was in your old thermostat, then we need it for the Nest. Now, some heat pumps use a Y2 signal wire to let the indoor unit know that the outdoor heat pump has entered a defrost cycle. It is not necessary to have it at the thermostat unless the outdoor unit has a 2-stage compressor. I can look this up for you but I will need a picture of the manufacturer label on the outdoor unit and the same for the indoor unit. Now the thermostat you need is a Nest Learning Thermostat 2nd or 3rd Generation. The one you have does not support 2-stages of cooling.
Ken, The AC Cooling Wizard
11-24-2022 02:12 PM
Hi folks,
@CoolingWizard, thanks for the help!
@DougLowery, how's it going with your Nest Thermostat? Still need our help?
Thanks,
Edward
11-28-2022 10:33 AM
Hello DougLowery,
I'm just checking in to make sure that you've seen our response. Please let us know if you have any additional questions or concerns.
Best,
Mark
11-29-2022 11:46 AM
Hi DougLowery,
It has been a few days since the last reply, and I am going to lock the thread in 24 hours. If you have any questions, please feel free to create a new post.
Best regards,
Mark