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Need help wiring Google Nest thermostat from Honeywell therm.

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Hi, I am confused and need help wiring a Google Nest (standard, non-learning) thermostat, replacing a honeywell non-programmable thermostat. If anyone could explain where the wires go into the Nest, it would be most appreciated! I have a pic of the current honeywell wired and will describe which wires are where in case they aren't visible in the pics.
Y2 - empty
W2 - white and brown wires
G - green
W - orange
C - empty
Y - yellow
R - jumper to Rc
Rc - red wire and jumper to R


This is the Google Nest that I'm wanting to connect.


Comments

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,915
    edited November 2023
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    Appears to be a heat pump that you are connecting that thermostat to.

    Not sure if you should have the C wire connected with the nest you have chosen.

    Need more info on what is connected to the other end of that wire (at the heating unit)

    But I can say for sure that Y=Y, RC=R, G=G, Y=Y and O/B = OB

    The question is weather to place both the black and the white wire from AUX on the W or if you need to get a Pro to figure it out. I would need to see what the other end of the white and black wire is connected to in the air handler

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

    Ironman
  • HVACNUT
    HVACNUT Member Posts: 5,844
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    What are those thermostat wires connected to? Relay, air handler?
    Unless the Nest takes batteries, it's gonna need a C connection.