Help with Nest Compatibility

[PUbeatND]

All, 

I have 6 wires with the following labels:  O/W2/B, R, C, Y/T2, G, & W/W1.  Is any Nest capable with this set up?

Thank you

[PUbeatND]

Note:  the system has the following wire colors with those descriptors:  orange, red, blue, yellow, white, and green.

[CoolingWizard]

You might have a HeatPump with Auxiliary heating.  The tricky part is the O/W2/B terminal. This can be programed to be Heat Pump (O or B) or stage 2 heating (W2).  If you have a gas furnace, then it will be W2. If you have a heat pump, it will be O or a B. Either way you will need a Nest Learning Thermostat Generation 3 or a newer Generation 4. 

AC Cooling Wizard

[Patrick_Caezza]

@PUbeatND 

Post a picture of the current thermostat's wiring.

If the camera icon isn't present yet, you can use the imgur.com upload site and post the link it provides here.