cancel
Showing results for 
Search instead for 
Did you mean: 
Replies are disabled for this topic. Start a new one or visit our Help Center.

2 wires

hubs
Community Member

I am adding a C Wire adapter to my Nest Thermostat 2020. Can you confirm this wiring configuration for a 2 wire gas/heat only system: White wire with black stripe from adapter to "C" terminal, White wire from furnace to "W" terminal, White wire (no stripe) from adapter to "R" terminal and Red wire from furnace to "R" terminal as well. The "R" terminal will have 2 wires inserted. Is this correct? Thanks.

3 REPLIES 3

laurentbourg
Bronze
Bronze

Yes, that should be the correct setup. 

Nshinds2
Community Member

Did this work for you?

hubs
Community Member

No…adding the adapter caused the thermostat to read incorrectly the temperature. It said it was about 10 degrees warmer than it actually was. I abandoned the Nest and went with an Ecobee. No problems and actually better for my application. Bery easy to talk to them and get a straight answer. Not so for me with Nest.