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wires and jumpers

kea
Community Member

Hello.  please see the picture of my current system wiring.  i have both a jumper AND wiring for R and RC.  Not sure if nest is compatible or not.  i read elsewhere that you don't need the jumper and to just use R, but that would leave an unused wire going to RC.  Thank you for any advice20221027_140158.jpg

5 REPLIES 5

EdwardT
Community Specialist
Community Specialist

Hi kea,

 

Thanks for reaching out. You're correct. You don't need to include the jumper when you wire your Nest Thermostat to your system. The Nest Learning Thermostats use an internal jumper between the Rh and Rc connectors. A Nest Learning Thermostat will automatically use this internal jumper if your system needs it.

 

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi kea,

 

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do. 

 

Thanks,

Edward

kea
Community Member

Hi Edward,

Thank you for responding.  I finally had a chance to install it.  As you suggested, i just placed the red wire, not the RC (which was also jumped).  The only issue i had was that the nest wasn't detecting a white wire.  i tried to strip and reinsert a few times and just decided to try and install anyway.  It SEEMS like it's working...so fingers crossed.  thank you

EdwardT
Community Specialist
Community Specialist

Hi kea,

 

Thanks for the update. I'm glad to hear that you're able to get it working. Please observe it for now and let us know if anything comes up.

 

Thanks,

Edward

aatienza
Community Specialist
Community Specialist

Hey there,

 

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh. Feel free to submit another post, and provide as many details as possible so that others can lend a hand.
 

I appreciate the help, Edward.

 

Thanks,

Archie