Replacing a Honeywell Thermostat with a nest.

[Ironman141]

I have a Honeywell Thermostat.  No braided wires, no wire twist-on connectors, no high voltage warning or high voltage (120/240/etc) posted).   The current back/wall plate says:   "HEAT PUMP and "CONVENTIONAL" under that.  (I will try to upload photos).  There are two sides for wire input - but all wires are fed into one side that is marked:  RC, R, O/B, Y, G, C in order (top to bottom).  The RC and R has a bridge (which I understand I don't need).  

My question really is centered upon: is my unit/system a conventional or a heat pump?  Like I said, it has both listed.

Here is a link to mmy hosted photos (hopefully it works - I sent it to myself and it appeared to works):  Photo Storage (photobucket.com)

https://photobucket.com/bucket/0afc2606-2e16-4b87-87b1-e077a2c9651c/album/bad4115d-9d8b-46c4-934e-45be9e1c042a

Thank you.

[Markjosephp]

Hello Ironman141,

Thanks for reaching out to the Google Nest Community!

It looks like you have both Heat Pump and Conventional listed on the back or wall plate. Based on the wiring configuration you've provided, it seems like your system can support both types. The wire labels RC, R, O/B, Y, G, and C are common thermostat wire labels. The bridge between RC and R is for systems that need power from both heating and cooling sources, which you mentioned you don't need.

To determine whether your system is a heat pump or conventional, please share with us a photo of your current thermostat's wiring setup, as I can't access the link you shared. If you have an outdoor unit that runs in both heating and cooling modes, it's likely a heat pump. If you have a separate furnace for heating, it's more likely to be a conventional system.

To insert an image in a post:

1. Reply to this post.
2. Click Insert Image (camera icon).
3. Choose an image source location.
4. Follow the on-screen instructions.

I'll look forward to your response.

Best regards,
Mark