Central Air Conditioner Thermostat Wiring Diagram

I recently purchased a new NEST thermostat to replace a thermostat custom for my furnace & air conditioner. The wiring was odd and so I called in a Reliance installer, who inspected, then easily installed the NEST. This unit functions flawlessly and it was a conch connecting it to my home wifi and adding it to my NEST account online. The product is unobtrusive and fits beautifully with our decor.

I got a new furnace and central air unit and the Heating and cooling company that I won’t with offered the thermostat. I like how I can get up in the morning and turn the heat up and then get out of bed

Took some research to make sure it was compatible, found the right wiring diagram. Installation was easy. Works as advertised. Highly recommended.

Bought this in Oct 2018, to replace a standard Honeywell 24/7 programable thermostat and found this very simple to install and use. I emailed support a picture of current wiring and they came back 2 days later with the recommendation for the wiring. Within 10 minutes it was up and running. I use the geo fencing feature and it have learned my setting preferences to provide energy savings.

Thermostat was NOT recommended for my 'old' heating system wiring set-up, noting it would probably require a c-wire. After a pretty extensive web search (rather than using the enclosed converter), it was a pretty easy operation (at least for this guy with 'some' experience and a little tenacity) to locate a terminal in the old Aquastat (at least my version) that functioned just fine as a c-wire. Thermostat compatibility with both Alexa and Google Home are both excellent and easy to set-up. Firmware update provided even more features and easy operation for everyone in the home. One of the best tech buys in a long time, especially considering a local gas company $100 rebate! Very cool stuff. Kudos to all at Ecobee.

I had difficulty wiring it, but because the old thermostat was hooked up poorly. Now that the issue was resolved, the unit is great! Easy to use, and remotely as well.

I did a little homework before I installed this thermostat. Took a picture of my wiring as recommended by Nest. The instructions provided were clear and straightforward. In less than 30 minutes my Nest was up and running. Unless you have an old wiring system you should have no issues with this thermostat. The Nest app works great. Gives me full control from a distance.

Nest customer support was very helpful with setting up wiring for my HVAC system with Nest. Systems been in for one week and has been operating well. Also purchased protect as a way to help with the home and away settings of the Nest thermostat. Time will tell to see if the Nest thermostat will save energy cost. Looking forward to it....

We have it for everything, Air-Conditioner panel control, Land line phone, Toys Etc',

This speakerphone is very clear on both ends. Was able to hear the other person speaking clearly even when my portable air conditioner was running in the room.