learning nest wiring help

[alexxxxx]

I’ve attached pictures of my old thermostat, please let me know which wires go where 🙂 

https://imgur.com/a/vb52owQ

[Brentg]

are you asking which wires to terminate onto your nest ?

[alexxxxx]

Exactly. For example, do I put my Y (black wire) into Y1 or Y2? 

[Brentg]

So it looks like your terminations should be as follows based off your old thermostat wiring.

G - Green

O - Orange

Y- Black

RH - Red

C - White

[Brentg]

Colours will vary depending on how they are terminated on your furnace or heating/cooling device. Check that to determine what colours go to which terminal points 

Y1- A/C (typically yellow)

G- FAN (typically green)

W1- Power (typically black or white)

C- Common (Typically Blue)

RH- Heat (Typically Red or black)